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6sko

Cryo-EM Structure of the Fork Protection Complex Bound to CMG at a Replication Fork - conformation 2 MCM CTD:ssDNA

Method: ELECTRON MICROSCOPY Dmax: 135.2 Å Quality: GOOD
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1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA replication licensing factor MCM6

Saccharomyces cerevisiae (strain ATCC 204508 / S288c)

UniProt P53091

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein–DNA Heteromer Protein × 6 DNA 1 PDB declaration: heptameric（7） Consistent with all polymer counts Chain 6； UniProt 1–1017 Not recorded DNA replication licensing factor MCM7 × 1 （P38132） DNA replication licensing factor MCM2 × 1 （P29469） Minichromosome maintenance protein 5 × 1 （P29496） DNA replication licensing factor MCM3 × 1 （P24279） DNA replication licensing factor MCM4 × 1 （P30665） ssDNA, leading-strand template × 1 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 5 ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE；Three microlitres of sample was applied on a grid and incubated for 15-30 s at 4 degC before manually blotting with filter paper for 10 s and plunge-freezing in liquid ethane. Resolution 3.40 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 6SKO Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
28VY sCMGE assembled on ARS1 DNA with Sld2 and RPA Deposited 2026-02-23 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 6 1–1017（1017 aa）
Not recorded MG MAGNESIUM ION × 6 ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
3JA8 Cryo-EM structure of the MCM2-7 double hexamer Deposited 2015-05-09 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 6 1–1017（1017 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
3JC5 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 6 1–1017（1017 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 4.70 Å
3JC6 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 6 1–1017（1017 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 3.70 Å R-free 0.331
3JC7 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 6 1–1017（1017 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 4.80 Å
5BK4 Cryo-EM structure of Mcm2-7 double hexamer on dsDNA Deposited 2017-09-12 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 6 1–1017（1017 aa）
Chain E 1–1017（1017 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
5U8S Structure of eukaryotic CMG helicase at a replication fork Deposited 2016-12-14 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: tridecameric
Chain 6 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.10 Å R-free 0.391
5U8T Structure of Eukaryotic CMG Helicase at a Replication Fork and Implications Deposited 2016-12-15 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: dodecameric
Chain 6 1–1017（1017 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.90 Å R-free 0.394
5V8F Structural basis of MCM2-7 replicative helicase loading by ORC-Cdc6 and Cdt1 Deposited 2017-03-21 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 6 1–1017（1017 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
5XF8 Cryo-EM structure of the Cdt1-MCM2-7 complex in AMPPNP state Deposited 2017-04-09 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain 6 1–1017（1017 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.10 Å
6EYC Re-refinement of the MCM2-7 double hexamer using ISOLDE Deposited 2017-11-11 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 6 1–1017（1017 aa）
Not recorded ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；All details as per 3ja8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6F0L S. cerevisiae MCM double hexamer bound to duplex DNA Deposited 2017-11-20 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 6 1–1017（1017 aa）
Chain E 1–1017（1017 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.77 Å
6HV9 S. cerevisiae CMG-Pol epsilon-DNA Deposited 2018-10-10 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: hexadecameric
Chain 6 1–1017（1017 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 2 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.98 Å
6PTJ Structure of Ctf4 trimer in complex with one CMG helicase Deposited 2019-07-15 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric
Chain 6 1–1017（1017 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6PTN Structure of Ctf4 trimer in complex with two CMG helicases Deposited 2019-07-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 25 PDB declaration: 25-meric
Chain 6 1–1017（1017 aa）
Chain m 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.80 Å
6PTO Structure of Ctf4 trimer in complex with three CMG helicases Deposited 2019-07-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 36 PDB declaration: 36-meric
Chain 6 1–1017（1017 aa）
Chain J 1–1017（1017 aa）
Chain l 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.00 Å
6RQC Cryo-EM structure of an MCM loading intermediate Deposited 2019-05-15 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 6 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；10 second incubation, 3.5 seconds single side blotting.
Resolution 4.40 Å
6SKL Cryo-EM structure of the CMG Fork Protection Complex at a replication fork - Conformation 1 Deposited 2019-08-16 Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 6 1–1017（1017 aa）
Not recorded ZN ZINC ION × 5 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；Three microlitres of sample was applied on a grid and incubated for 15-30 s at 4 degC before manually blotting with filter paper for 10 s and plunge-freezing in liquid ethane.
Resolution 3.70 Å
6WGF Atomic model of mutant Mcm2-7 hexamer with Mcm6 WHD truncation Deposited 2020-04-05 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 6 1–1017（1017 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.70 Å
6WGG Atomic model of pre-insertion mutant OCCM-DNA complex(ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) Deposited 2020-04-05 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 6 1–1017（1017 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 8.10 Å
6WGI Atomic model of the mutant OCCM (ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) loaded on DNA at 10.5 A resolution Deposited 2020-04-05 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 6 1–1017（1017 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 10.00 Å
7P30 3.0 A resolution structure of a DNA-loaded MCM double hexamer Deposited 2021-07-06 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 6 1–1017（1017 aa）
Chain E 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 10 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blotted for 3 seconds before plunging
Resolution 3.00 Å
7P5Z Structure of a DNA-loaded MCM double hexamer engaged with the Dbf4-dependent kinase Deposited 2021-07-15 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 6 1–1017（1017 aa）
Chain E 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 10 ZN ZINC ION × 11 ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blotted for 3 seconds before plunging
Resolution 3.30 Å
7PMK S. cerevisiae replisome-SCF(Dia2) complex bound to double-stranded DNA (conformation I) Deposited 2021-09-02 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric
Chain 6 1–1017（1017 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ZN ZINC ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Manual plunger
Resolution 3.20 Å
7PMN S. cerevisiae replisome-SCF(Dia2) complex bound to double-stranded DNA (conformation II) Deposited 2021-09-02 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric
Chain 6 1–1017（1017 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 MG MAGNESIUM ION × 2 ZN ZINC ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Manual plunger
Resolution 3.20 Å
7PT6 Structure of MCM2-7 DH complexed with Cdc7-Dbf4 in the presence of ATPgS, state III Deposited 2021-09-26 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain 6 1–1017（1017 aa）
Chain F 1–1017（1017 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 12 MG MAGNESIUM ION × 14 ZN ZINC ION × 14 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；blot for 1.5 seconds and blot force +2
Resolution 3.20 Å
7PT7 Structure of MCM2-7 DH complexed with Cdc7-Dbf4 in the presence of ADP:BeF3, state I Deposited 2021-09-26 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain 6 1–1017（1017 aa）
Chain F 1–1017（1017 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 13 MG MAGNESIUM ION × 14 ZN ZINC ION × 12 BEF BERYLLIUM TRIFLUORIDE ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；blot for 1.5 seconds and blot force +2
Resolution 3.80 Å
7QHS S. cerevisiae CMGE nucleating origin DNA melting Deposited 2021-12-14 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: pentadecameric
Chain 6 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
7V3U Cryo-EM structure of MCM double hexamer with structured Mcm4-NSD Deposited 2021-08-11 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain 6 1–1017（1017 aa）
Chain F 1–1017（1017 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 10 MG MAGNESIUM ION × 12 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
7V3V Cryo-EM structure of MCM double hexamer bound with DDK in State I Deposited 2021-08-11 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric
Chain 6 1–1017（1017 aa）
Chain F 1–1017（1017 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 11 MG MAGNESIUM ION × 12 ZN ZINC ION × 11 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7W8G Cryo-EM structure of MCM double hexamer Deposited 2021-12-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain 6 1–1017（1017 aa）
Chain F 1–1017（1017 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 10 MG MAGNESIUM ION × 12 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.52 Å
7Z13 S. cerevisiae CMGE dimer nucleating origin DNA melting Deposited 2022-02-24 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric
Chain 6 1–1017（1017 aa）
Chain e 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 8 ZN ZINC ION × 14 MG MAGNESIUM ION × 6 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
8B9A S. cerevisiae replisome + Ctf4, bound by pol alpha primase. Complex engaged with a fork DNA substrate containing a 60 nucleotide lagging strand. Deposited 2022-10-05 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric
Chain 6 1–1017（1017 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
8B9B S. cerevisiae replisome + Ctf4, bound by pol alpha. Complex engaged with a fork DNA substrate containing a 60 nucleotide lagging strand. Deposited 2022-10-05 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric
Chain 6 1–1017（1017 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
8B9C S. cerevisiae pol alpha - replisome complex Deposited 2022-10-05 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 18 PDB declaration: eicosameric
Chain 6 1–1017（1017 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.60 Å
8KG6 Yeast replisome in state I Deposited 2023-08-17 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 18 PDB declaration: 20-meric
Chain 6 1–1017（1017 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 3.07 Å
8KG8 Yeast replisome in state II Deposited 2023-08-17 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 6 1–1017（1017 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 4.23 Å
8KG9 Yeast replisome in state III Deposited 2023-08-17 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 6 1–1017（1017 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 4 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 4.52 Å
8P5E S. cerevisiae nexus-sCMGE after DNA replication initiation Deposited 2023-05-24 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 6 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8P62 S. cerevisiae ssDNA-sCMGE after DNA replication initiation Deposited 2023-05-25 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 14-meric
Chain 6 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8P63 S. cerevisiae consensus-sCMGE on ssDNA after DNA replication initiation Deposited 2023-05-25 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 14-meric
Chain 6 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
8RIF Cryo-EM structure of the MCM double hexamer loaded onto dsDNA. Deposited 2023-12-18 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 6 1–1017（1017 aa）
Chain E 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 8 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.79 Å
8RIG Cryo-EM structure of an MCM helicase single hexamer loaded onto dsDNA. Deposited 2023-12-18 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric
Chain 6 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.41 Å
8W7M Yeast replisome in state V Deposited 2023-08-30 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 15 PDB declaration: hexadecameric
Chain 6 1–1017（1017 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 4 ZN ZINC ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 4.12 Å
8W7S Yeast replisome in state IV Deposited 2023-08-31 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 15 PDB declaration: hexadecameric
Chain 6 1–1017（1017 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 7.39 Å
8XGC Structure of yeast replisome associated with FACT and histone hexamer, Composite map Deposited 2023-12-15 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric
Chain 6 1–1017（1017 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
9BCX Cryo-EM structure of the S. cerevisiae ORC-Cdc6-Mcm2-7-DNA complex with a fully closed Mcm2-Mcm5 DNA entry gate Deposited 2024-04-10 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: 16-meric
Chain 6 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.10 Å
9E2W Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 1 Deposited 2024-10-23 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 6 1–1017（1017 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.30 Å
9E2X Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 2 Deposited 2024-10-23 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 6 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 MG MAGNESIUM ION × 5 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.50 Å
9E2Y Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 3 Deposited 2024-10-23 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 6 1–1017（1017 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.20 Å
9GJP OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm5: Conformer 2 Deposited 2024-08-22 Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 6 1–1017（1017 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9GJW OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm2 Deposited 2024-08-22 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 6 1–1017（1017 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 6 ZN ZINC ION × 4 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
9GM5 OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm5: Conformer 1 Deposited 2024-08-28 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 6 1–1017（1017 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
9I3I Cryo-EM structure of the MCM-ORC (MO) complex featuring an ORC2 regulatory domain involved in cell cycle regulation of MCM-DH loading for DNA replication. Deposited 2025-01-23 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 6 1–1017（1017 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；10 second incubation, 3.5 seconds single side blotting.
Resolution 4.40 Å
9RHI pre-Initiation Complex on ARS1 DNA (monomer) Deposited 2025-06-09 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 17 PDB declaration: 19-meric
Chain 6 1–1017（1017 aa）
Not recorded ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
9RHJ Pre-Initiation Complex on ARS1 DNA (dimer) Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric
Chain 6 1–1017（1017 aa）
Chain e 1–1017（1017 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9RHL Phospho-DH bound by Sld3-MBD on ARS1 DNA Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: 16-meric
Chain 6 1–1017（1017 aa）
Chain e 1–1017（1017 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9RHM Phospho-MCM double hexamer bound to Sld3-Sld7-Cdc45 on ARS1 DNA Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 17 PDB declaration: 19-meric
Chain 6 1–1017（1017 aa）
Chain e 1–1017（1017 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å

58 other PDB entries and 58 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MCM6_YEAST
Isoform —
PDB entities 1
Chains and sequence ranges Author chain 6； PDBConstruct 1–1017； UniProt 1–1017

DNA replication licensing factor MCM7

Saccharomyces cerevisiae (strain ATCC 204508 / S288c)

UniProt P38132

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein–DNA Heteromer Protein × 6 DNA 1 PDB declaration: heptameric（7） Consistent with all polymer counts Chain 7； UniProt 1–845 Fragment：Mcm2-CTD DNA replication licensing factor MCM6 × 1 （P53091） DNA replication licensing factor MCM2 × 1 （P29469） Minichromosome maintenance protein 5 × 1 （P29496） DNA replication licensing factor MCM3 × 1 （P24279） DNA replication licensing factor MCM4 × 1 （P30665） ssDNA, leading-strand template × 1 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 5 ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE；Three microlitres of sample was applied on a grid and incubated for 15-30 s at 4 degC before manually blotting with filter paper for 10 s and plunge-freezing in liquid ethane. Resolution 3.40 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 6SKO Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
28VY sCMGE assembled on ARS1 DNA with Sld2 and RPA Deposited 2026-02-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 7 1–845（845 aa）
Not recorded MG MAGNESIUM ION × 6 ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
3JA8 Cryo-EM structure of the MCM2-7 double hexamer Deposited 2015-05-09 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 7 1–845（845 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
3JC5 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 7 1–845（845 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 4.70 Å
3JC6 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 7 1–845（845 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 3.70 Å R-free 0.331
3JC7 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 7 1–845（845 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 4.80 Å
5BK4 Cryo-EM structure of Mcm2-7 double hexamer on dsDNA Deposited 2017-09-12 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 7 1–845（845 aa）
Chain F 1–845（845 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
5U8S Structure of eukaryotic CMG helicase at a replication fork Deposited 2016-12-14 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: tridecameric
Chain 7 1–845（845 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.10 Å R-free 0.391
5U8T Structure of Eukaryotic CMG Helicase at a Replication Fork and Implications Deposited 2016-12-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: dodecameric
Chain 7 1–845（845 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.90 Å R-free 0.394
5V8F Structural basis of MCM2-7 replicative helicase loading by ORC-Cdc6 and Cdt1 Deposited 2017-03-21 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 7 1–800（800 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
5XF8 Cryo-EM structure of the Cdt1-MCM2-7 complex in AMPPNP state Deposited 2017-04-09 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain 7 1–845（845 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.10 Å
6EYC Re-refinement of the MCM2-7 double hexamer using ISOLDE Deposited 2017-11-11 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 7 1–845（845 aa）
Not recorded ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；All details as per 3ja8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6F0L S. cerevisiae MCM double hexamer bound to duplex DNA Deposited 2017-11-20 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 7 1–845（845 aa）
Chain F 1–845（845 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.77 Å
6HV9 S. cerevisiae CMG-Pol epsilon-DNA Deposited 2018-10-10 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: hexadecameric
Chain 7 1–845（845 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 2 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.98 Å
6PTJ Structure of Ctf4 trimer in complex with one CMG helicase Deposited 2019-07-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric
Chain 7 1–845（845 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6PTN Structure of Ctf4 trimer in complex with two CMG helicases Deposited 2019-07-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 25 PDB declaration: 25-meric
Chain 7 1–845（845 aa）
Chain n 1–845（845 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.80 Å
6PTO Structure of Ctf4 trimer in complex with three CMG helicases Deposited 2019-07-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 36 PDB declaration: 36-meric
Chain 7 1–845（845 aa）
Chain K 1–845（845 aa）
Chain m 1–845（845 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.00 Å
6RQC Cryo-EM structure of an MCM loading intermediate Deposited 2019-05-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 7 1–845（845 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；10 second incubation, 3.5 seconds single side blotting.
Resolution 4.40 Å
6SKL Cryo-EM structure of the CMG Fork Protection Complex at a replication fork - Conformation 1 Deposited 2019-08-16 Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 7 1–845（845 aa）
Not recorded ZN ZINC ION × 5 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；Three microlitres of sample was applied on a grid and incubated for 15-30 s at 4 degC before manually blotting with filter paper for 10 s and plunge-freezing in liquid ethane.
Resolution 3.70 Å
6U0M Structure of the S. cerevisiae replicative helicase CMG in complex with a forked DNA Deposited 2019-08-14 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: tridecameric
Chain 7 1–729（729 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
6WGC Atomic model of semi-attached mutant OCCM-DNA complex (ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) Deposited 2020-04-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 9 PDB declaration: undecameric
Chain 7 1–845（845 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.30 Å
6WGF Atomic model of mutant Mcm2-7 hexamer with Mcm6 WHD truncation Deposited 2020-04-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 7 1–845（845 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.70 Å
6WGG Atomic model of pre-insertion mutant OCCM-DNA complex(ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) Deposited 2020-04-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 7 1–845（845 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 8.10 Å
6WGI Atomic model of the mutant OCCM (ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) loaded on DNA at 10.5 A resolution Deposited 2020-04-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 7 1–845（845 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 10.00 Å
7P30 3.0 A resolution structure of a DNA-loaded MCM double hexamer Deposited 2021-07-06 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 7 1–845（845 aa）
Chain F 1–845（845 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 10 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blotted for 3 seconds before plunging
Resolution 3.00 Å
7P5Z Structure of a DNA-loaded MCM double hexamer engaged with the Dbf4-dependent kinase Deposited 2021-07-15 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 7 1–845（845 aa）
Chain F 1–845（845 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 10 ZN ZINC ION × 11 ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blotted for 3 seconds before plunging
Resolution 3.30 Å
7PMN S. cerevisiae replisome-SCF(Dia2) complex bound to double-stranded DNA (conformation II) Deposited 2021-09-02 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric
Chain 7 1–845（845 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 MG MAGNESIUM ION × 2 ZN ZINC ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Manual plunger
Resolution 3.20 Å
7PT6 Structure of MCM2-7 DH complexed with Cdc7-Dbf4 in the presence of ATPgS, state III Deposited 2021-09-26 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain 7 1–845（845 aa）
Chain G 1–845（845 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 12 MG MAGNESIUM ION × 14 ZN ZINC ION × 14 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；blot for 1.5 seconds and blot force +2
Resolution 3.20 Å
7PT7 Structure of MCM2-7 DH complexed with Cdc7-Dbf4 in the presence of ADP:BeF3, state I Deposited 2021-09-26 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain 7 1–845（845 aa）
Chain G 1–845（845 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 13 MG MAGNESIUM ION × 14 ZN ZINC ION × 12 BEF BERYLLIUM TRIFLUORIDE ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；blot for 1.5 seconds and blot force +2
Resolution 3.80 Å
7QHS S. cerevisiae CMGE nucleating origin DNA melting Deposited 2021-12-14 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: pentadecameric
Chain 7 1–845（845 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
7V3U Cryo-EM structure of MCM double hexamer with structured Mcm4-NSD Deposited 2021-08-11 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain 7 1–845（845 aa）
Chain G 1–845（845 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 10 MG MAGNESIUM ION × 12 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
7V3V Cryo-EM structure of MCM double hexamer bound with DDK in State I Deposited 2021-08-11 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric
Chain 7 1–845（845 aa）
Chain G 1–845（845 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 11 MG MAGNESIUM ION × 12 ZN ZINC ION × 11 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7W8G Cryo-EM structure of MCM double hexamer Deposited 2021-12-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain 7 1–845（845 aa）
Chain G 1–845（845 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 10 MG MAGNESIUM ION × 12 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.52 Å
8B9A S. cerevisiae replisome + Ctf4, bound by pol alpha primase. Complex engaged with a fork DNA substrate containing a 60 nucleotide lagging strand. Deposited 2022-10-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric
Chain 7 1–845（845 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
8B9B S. cerevisiae replisome + Ctf4, bound by pol alpha. Complex engaged with a fork DNA substrate containing a 60 nucleotide lagging strand. Deposited 2022-10-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric
Chain 7 1–845（845 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
8B9C S. cerevisiae pol alpha - replisome complex Deposited 2022-10-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 18 PDB declaration: eicosameric
Chain 7 1–845（845 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.60 Å
8KG6 Yeast replisome in state I Deposited 2023-08-17 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 18 PDB declaration: 20-meric
Chain 7 1–845（845 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 3.07 Å
8KG8 Yeast replisome in state II Deposited 2023-08-17 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 7 1–845（845 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 4.23 Å
8P5E S. cerevisiae nexus-sCMGE after DNA replication initiation Deposited 2023-05-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 7 1–845（845 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8P62 S. cerevisiae ssDNA-sCMGE after DNA replication initiation Deposited 2023-05-25 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 14-meric
Chain 7 1–845（845 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8P63 S. cerevisiae consensus-sCMGE on ssDNA after DNA replication initiation Deposited 2023-05-25 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 14-meric
Chain 7 1–845（845 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
8RIF Cryo-EM structure of the MCM double hexamer loaded onto dsDNA. Deposited 2023-12-18 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 7 1–845（845 aa）
Chain F 1–845（845 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 8 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.79 Å
8RIG Cryo-EM structure of an MCM helicase single hexamer loaded onto dsDNA. Deposited 2023-12-18 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric
Chain 7 1–845（845 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.41 Å
8W7S Yeast replisome in state IV Deposited 2023-08-31 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 15 PDB declaration: hexadecameric
Chain 7 1–845（845 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 7.39 Å
9BCX Cryo-EM structure of the S. cerevisiae ORC-Cdc6-Mcm2-7-DNA complex with a fully closed Mcm2-Mcm5 DNA entry gate Deposited 2024-04-10 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: 16-meric
Chain 7 1–845（845 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.10 Å
9E2W Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 1 Deposited 2024-10-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 7 1–845（845 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.30 Å
9E2X Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 2 Deposited 2024-10-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 7 1–845（845 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 MG MAGNESIUM ION × 5 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.50 Å
9E2Y Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 3 Deposited 2024-10-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 7 1–845（845 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.20 Å
9GJP OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm5: Conformer 2 Deposited 2024-08-22 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 7 1–845（845 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9GJW OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm2 Deposited 2024-08-22 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 7 1–845（845 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 6 ZN ZINC ION × 4 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
9GM5 OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm5: Conformer 1 Deposited 2024-08-28 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 7 1–845（845 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
9I3I Cryo-EM structure of the MCM-ORC (MO) complex featuring an ORC2 regulatory domain involved in cell cycle regulation of MCM-DH loading for DNA replication. Deposited 2025-01-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 7 1–845（845 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；10 second incubation, 3.5 seconds single side blotting.
Resolution 4.40 Å
9RHI pre-Initiation Complex on ARS1 DNA (monomer) Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 17 PDB declaration: 19-meric
Chain 7 1–845（845 aa）
Chain f 1–845（845 aa）
Not recorded ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
9RHJ Pre-Initiation Complex on ARS1 DNA (dimer) Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric
Chain 7 1–845（845 aa）
Chain f 1–845（845 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9RHL Phospho-DH bound by Sld3-MBD on ARS1 DNA Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: 16-meric
Chain 7 1–845（845 aa）
Chain f 1–845（845 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9RHM Phospho-MCM double hexamer bound to Sld3-Sld7-Cdc45 on ARS1 DNA Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 17 PDB declaration: 19-meric
Chain 7 1–845（845 aa）
Chain f 1–845（845 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å

55 other PDB entries and 55 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MCM7_YEAST
Isoform —
PDB entities 2
Chains and sequence ranges Author chain 7； PDBConstruct 1–845； UniProt 1–845

DNA replication licensing factor MCM2

Saccharomyces cerevisiae (strain ATCC 204508 / S288c)

UniProt P29469

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein–DNA Heteromer Protein × 6 DNA 1 PDB declaration: heptameric（7） Consistent with all polymer counts Chain 2； UniProt 1–868 Fragment：Mcm4-CTD DNA replication licensing factor MCM6 × 1 （P53091） DNA replication licensing factor MCM7 × 1 （P38132） Minichromosome maintenance protein 5 × 1 （P29496） DNA replication licensing factor MCM3 × 1 （P24279） DNA replication licensing factor MCM4 × 1 （P30665） ssDNA, leading-strand template × 1 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 5 ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE；Three microlitres of sample was applied on a grid and incubated for 15-30 s at 4 degC before manually blotting with filter paper for 10 s and plunge-freezing in liquid ethane. Resolution 3.40 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 6SKO Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
28VY sCMGE assembled on ARS1 DNA with Sld2 and RPA Deposited 2026-02-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 2 1–868（868 aa）
Not recorded MG MAGNESIUM ION × 6 ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
3JA8 Cryo-EM structure of the MCM2-7 double hexamer Deposited 2015-05-09 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 2 1–868（868 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
3JC5 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 2 1–868（868 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 4.70 Å
3JC6 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 2 1–868（868 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 3.70 Å R-free 0.331
3JC7 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 2 1–868（868 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 4.80 Å
5BK4 Cryo-EM structure of Mcm2-7 double hexamer on dsDNA Deposited 2017-09-12 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 2 1–868（868 aa）
Chain A 1–868（868 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
5U8S Structure of eukaryotic CMG helicase at a replication fork Deposited 2016-12-14 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: tridecameric
Chain 2 1–868（868 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.10 Å R-free 0.391
5U8T Structure of Eukaryotic CMG Helicase at a Replication Fork and Implications Deposited 2016-12-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: dodecameric
Chain 2 1–868（868 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.90 Å R-free 0.394
5V8F Structural basis of MCM2-7 replicative helicase loading by ORC-Cdc6 and Cdt1 Deposited 2017-03-21 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 2 1–868（868 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
5XF8 Cryo-EM structure of the Cdt1-MCM2-7 complex in AMPPNP state Deposited 2017-04-09 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain 2 1–868（868 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.10 Å
6EYC Re-refinement of the MCM2-7 double hexamer using ISOLDE Deposited 2017-11-11 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 2 1–868（868 aa）
Not recorded ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；All details as per 3ja8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6F0L S. cerevisiae MCM double hexamer bound to duplex DNA Deposited 2017-11-20 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 2 1–868（868 aa）
Chain A 1–868（868 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.77 Å
6PTJ Structure of Ctf4 trimer in complex with one CMG helicase Deposited 2019-07-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric
Chain 2 1–868（868 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6PTN Structure of Ctf4 trimer in complex with two CMG helicases Deposited 2019-07-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 25 PDB declaration: 25-meric
Chain 2 1–868（868 aa）
Chain i 1–868（868 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.80 Å
6PTO Structure of Ctf4 trimer in complex with three CMG helicases Deposited 2019-07-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 36 PDB declaration: 36-meric
Chain 2 1–868（868 aa）
Chain F 1–868（868 aa）
Chain h 1–868（868 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.00 Å
6RQC Cryo-EM structure of an MCM loading intermediate Deposited 2019-05-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 2 1–868（868 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；10 second incubation, 3.5 seconds single side blotting.
Resolution 4.40 Å
6SKL Cryo-EM structure of the CMG Fork Protection Complex at a replication fork - Conformation 1 Deposited 2019-08-16 Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 2 1–868（868 aa）
Not recorded ZN ZINC ION × 5 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；Three microlitres of sample was applied on a grid and incubated for 15-30 s at 4 degC before manually blotting with filter paper for 10 s and plunge-freezing in liquid ethane.
Resolution 3.70 Å
6U0M Structure of the S. cerevisiae replicative helicase CMG in complex with a forked DNA Deposited 2019-08-14 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: tridecameric
Chain 2 201–864（664 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
6WGF Atomic model of mutant Mcm2-7 hexamer with Mcm6 WHD truncation Deposited 2020-04-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 2 1–868（868 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.70 Å
6WGG Atomic model of pre-insertion mutant OCCM-DNA complex(ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) Deposited 2020-04-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 2 1–868（868 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 8.10 Å
6WGI Atomic model of the mutant OCCM (ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) loaded on DNA at 10.5 A resolution Deposited 2020-04-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 2 1–868（868 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 10.00 Å
7P30 3.0 A resolution structure of a DNA-loaded MCM double hexamer Deposited 2021-07-06 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 2 1–868（868 aa）
Chain A 1–868（868 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 10 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blotted for 3 seconds before plunging
Resolution 3.00 Å
7P5Z Structure of a DNA-loaded MCM double hexamer engaged with the Dbf4-dependent kinase Deposited 2021-07-15 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 2 1–868（868 aa）
Chain A 1–868（868 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 10 ZN ZINC ION × 11 ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blotted for 3 seconds before plunging
Resolution 3.30 Å
7PMN S. cerevisiae replisome-SCF(Dia2) complex bound to double-stranded DNA (conformation II) Deposited 2021-09-02 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric
Chain 2 1–868（868 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 MG MAGNESIUM ION × 2 ZN ZINC ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Manual plunger
Resolution 3.20 Å
7PT6 Structure of MCM2-7 DH complexed with Cdc7-Dbf4 in the presence of ATPgS, state III Deposited 2021-09-26 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain 2 1–868（868 aa）
Chain B 1–868（868 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 12 MG MAGNESIUM ION × 14 ZN ZINC ION × 14 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；blot for 1.5 seconds and blot force +2
Resolution 3.20 Å
7PT7 Structure of MCM2-7 DH complexed with Cdc7-Dbf4 in the presence of ADP:BeF3, state I Deposited 2021-09-26 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain 2 1–868（868 aa）
Chain B 1–868（868 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 13 MG MAGNESIUM ION × 14 ZN ZINC ION × 12 BEF BERYLLIUM TRIFLUORIDE ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；blot for 1.5 seconds and blot force +2
Resolution 3.80 Å
7V3U Cryo-EM structure of MCM double hexamer with structured Mcm4-NSD Deposited 2021-08-11 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain 2 1–868（868 aa）
Chain B 1–868（868 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 10 MG MAGNESIUM ION × 12 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
7V3V Cryo-EM structure of MCM double hexamer bound with DDK in State I Deposited 2021-08-11 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric
Chain 2 1–868（868 aa）
Chain B 1–868（868 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 11 MG MAGNESIUM ION × 12 ZN ZINC ION × 11 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7W8G Cryo-EM structure of MCM double hexamer Deposited 2021-12-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain 2 1–868（868 aa）
Chain B 1–868（868 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 10 MG MAGNESIUM ION × 12 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.52 Å
8B9A S. cerevisiae replisome + Ctf4, bound by pol alpha primase. Complex engaged with a fork DNA substrate containing a 60 nucleotide lagging strand. Deposited 2022-10-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric
Chain 2 1–868（868 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
8B9B S. cerevisiae replisome + Ctf4, bound by pol alpha. Complex engaged with a fork DNA substrate containing a 60 nucleotide lagging strand. Deposited 2022-10-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric
Chain 2 1–868（868 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
8B9C S. cerevisiae pol alpha - replisome complex Deposited 2022-10-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 18 PDB declaration: eicosameric
Chain 2 1–868（868 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.60 Å
8KG6 Yeast replisome in state I Deposited 2023-08-17 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 18 PDB declaration: 20-meric
Chain 2 1–868（868 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 3.07 Å
8KG8 Yeast replisome in state II Deposited 2023-08-17 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 2 1–868（868 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 4.23 Å
8P5E S. cerevisiae nexus-sCMGE after DNA replication initiation Deposited 2023-05-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 2 1–868（868 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8P62 S. cerevisiae ssDNA-sCMGE after DNA replication initiation Deposited 2023-05-25 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 14-meric
Chain 2 1–868（868 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8P63 S. cerevisiae consensus-sCMGE on ssDNA after DNA replication initiation Deposited 2023-05-25 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 14-meric
Chain 2 1–868（868 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
8RIF Cryo-EM structure of the MCM double hexamer loaded onto dsDNA. Deposited 2023-12-18 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 2 1–868（868 aa）
Chain A 1–868（868 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 8 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.79 Å
8RIG Cryo-EM structure of an MCM helicase single hexamer loaded onto dsDNA. Deposited 2023-12-18 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric
Chain 2 1–868（868 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.41 Å
9BCX Cryo-EM structure of the S. cerevisiae ORC-Cdc6-Mcm2-7-DNA complex with a fully closed Mcm2-Mcm5 DNA entry gate Deposited 2024-04-10 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: 16-meric
Chain 2 1–868（868 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.10 Å
9E2W Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 1 Deposited 2024-10-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 2 1–868（868 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.30 Å
9E2X Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 2 Deposited 2024-10-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 2 1–868（868 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 MG MAGNESIUM ION × 5 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.50 Å
9E2Y Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 3 Deposited 2024-10-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 2 1–868（868 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.20 Å
9GJP OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm5: Conformer 2 Deposited 2024-08-22 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 2 1–868（868 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9GJW OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm2 Deposited 2024-08-22 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 2 1–868（868 aa）
Mutation：R676A ADP ADENOSINE-5'-DIPHOSPHATE × 6 ZN ZINC ION × 4 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
9GM5 OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm5: Conformer 1 Deposited 2024-08-28 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 2 1–868（868 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
9I3I Cryo-EM structure of the MCM-ORC (MO) complex featuring an ORC2 regulatory domain involved in cell cycle regulation of MCM-DH loading for DNA replication. Deposited 2025-01-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 2 1–868（868 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；10 second incubation, 3.5 seconds single side blotting.
Resolution 4.40 Å
9RHI pre-Initiation Complex on ARS1 DNA (monomer) Deposited 2025-06-09 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 17 PDB declaration: 19-meric
Chain 2 1–868（868 aa）
Not recorded ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
9RHJ Pre-Initiation Complex on ARS1 DNA (dimer) Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric
Chain 2 1–868（868 aa）
Chain a 1–868（868 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9RHL Phospho-DH bound by Sld3-MBD on ARS1 DNA Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: 16-meric
Chain 2 1–868（868 aa）
Chain a 1–868（868 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9RHM Phospho-MCM double hexamer bound to Sld3-Sld7-Cdc45 on ARS1 DNA Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 17 PDB declaration: 19-meric
Chain 2 1–868（868 aa）
Chain a 1–868（868 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å

51 other PDB entries and 51 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MCM2_YEAST
Isoform —
PDB entities 3
Chains and sequence ranges Author chain 2； PDBConstruct 1–868； UniProt 1–868

Minichromosome maintenance protein 5

Saccharomyces cerevisiae (strain ATCC 204508 / S288c)

UniProt P29496

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein–DNA Heteromer Protein × 6 DNA 1 PDB declaration: heptameric（7） Consistent with all polymer counts Chain 5； UniProt 1–775 Fragment：Mcm7-CTD DNA replication licensing factor MCM6 × 1 （P53091） DNA replication licensing factor MCM7 × 1 （P38132） DNA replication licensing factor MCM2 × 1 （P29469） DNA replication licensing factor MCM3 × 1 （P24279） DNA replication licensing factor MCM4 × 1 （P30665） ssDNA, leading-strand template × 1 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 5 ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE；Three microlitres of sample was applied on a grid and incubated for 15-30 s at 4 degC before manually blotting with filter paper for 10 s and plunge-freezing in liquid ethane. Resolution 3.40 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 6SKO Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
28VY sCMGE assembled on ARS1 DNA with Sld2 and RPA Deposited 2026-02-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 5 1–775（775 aa）
Not recorded MG MAGNESIUM ION × 6 ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
3JA8 Cryo-EM structure of the MCM2-7 double hexamer Deposited 2015-05-09 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 5 1–775（775 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
3JC5 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 5 1–775（775 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 4.70 Å
3JC6 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 5 1–775（775 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 3.70 Å R-free 0.331
3JC7 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 5 1–775（775 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 4.80 Å
5BK4 Cryo-EM structure of Mcm2-7 double hexamer on dsDNA Deposited 2017-09-12 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 5 1–775（775 aa）
Chain D 1–775（775 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
5U8S Structure of eukaryotic CMG helicase at a replication fork Deposited 2016-12-14 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: tridecameric
Chain 5 1–775（775 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.10 Å R-free 0.391
5U8T Structure of Eukaryotic CMG Helicase at a Replication Fork and Implications Deposited 2016-12-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: dodecameric
Chain 5 1–775（775 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.90 Å R-free 0.394
5V8F Structural basis of MCM2-7 replicative helicase loading by ORC-Cdc6 and Cdt1 Deposited 2017-03-21 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 5 1–775（775 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
5XF8 Cryo-EM structure of the Cdt1-MCM2-7 complex in AMPPNP state Deposited 2017-04-09 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain 5 1–775（775 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.10 Å
6EYC Re-refinement of the MCM2-7 double hexamer using ISOLDE Deposited 2017-11-11 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 5 1–775（775 aa）
Not recorded ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；All details as per 3ja8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6F0L S. cerevisiae MCM double hexamer bound to duplex DNA Deposited 2017-11-20 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 5 1–775（775 aa）
Chain D 1–775（775 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.77 Å
6PTJ Structure of Ctf4 trimer in complex with one CMG helicase Deposited 2019-07-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric
Chain 5 1–775（775 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6PTN Structure of Ctf4 trimer in complex with two CMG helicases Deposited 2019-07-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 25 PDB declaration: 25-meric
Chain 5 1–775（775 aa）
Chain l 1–775（775 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.80 Å
6PTO Structure of Ctf4 trimer in complex with three CMG helicases Deposited 2019-07-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 36 PDB declaration: 36-meric
Chain 5 1–775（775 aa）
Chain I 1–775（775 aa）
Chain k 1–775（775 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.00 Å
6RQC Cryo-EM structure of an MCM loading intermediate Deposited 2019-05-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 5 1–775（775 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；10 second incubation, 3.5 seconds single side blotting.
Resolution 4.40 Å
6SKL Cryo-EM structure of the CMG Fork Protection Complex at a replication fork - Conformation 1 Deposited 2019-08-16 Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 5 1–775（775 aa）
Not recorded ZN ZINC ION × 5 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；Three microlitres of sample was applied on a grid and incubated for 15-30 s at 4 degC before manually blotting with filter paper for 10 s and plunge-freezing in liquid ethane.
Resolution 3.70 Å
6U0M Structure of the S. cerevisiae replicative helicase CMG in complex with a forked DNA Deposited 2019-08-14 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: tridecameric
Chain 5 24–693（670 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
6WGF Atomic model of mutant Mcm2-7 hexamer with Mcm6 WHD truncation Deposited 2020-04-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 5 1–775（775 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.70 Å
6WGG Atomic model of pre-insertion mutant OCCM-DNA complex(ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) Deposited 2020-04-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 5 1–775（775 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 8.10 Å
6WGI Atomic model of the mutant OCCM (ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) loaded on DNA at 10.5 A resolution Deposited 2020-04-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 5 1–775（775 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 10.00 Å
7P30 3.0 A resolution structure of a DNA-loaded MCM double hexamer Deposited 2021-07-06 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 5 1–775（775 aa）
Chain D 1–775（775 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 10 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blotted for 3 seconds before plunging
Resolution 3.00 Å
7P5Z Structure of a DNA-loaded MCM double hexamer engaged with the Dbf4-dependent kinase Deposited 2021-07-15 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 5 1–775（775 aa）
Chain D 1–775（775 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 10 ZN ZINC ION × 11 ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blotted for 3 seconds before plunging
Resolution 3.30 Å
7PMN S. cerevisiae replisome-SCF(Dia2) complex bound to double-stranded DNA (conformation II) Deposited 2021-09-02 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric
Chain 5 1–775（775 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 MG MAGNESIUM ION × 2 ZN ZINC ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Manual plunger
Resolution 3.20 Å
7PT6 Structure of MCM2-7 DH complexed with Cdc7-Dbf4 in the presence of ATPgS, state III Deposited 2021-09-26 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain 5 1–775（775 aa）
Chain E 1–775（775 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 12 MG MAGNESIUM ION × 14 ZN ZINC ION × 14 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；blot for 1.5 seconds and blot force +2
Resolution 3.20 Å
7PT7 Structure of MCM2-7 DH complexed with Cdc7-Dbf4 in the presence of ADP:BeF3, state I Deposited 2021-09-26 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain 5 1–775（775 aa）
Chain E 1–775（775 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 13 MG MAGNESIUM ION × 14 ZN ZINC ION × 12 BEF BERYLLIUM TRIFLUORIDE ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；blot for 1.5 seconds and blot force +2
Resolution 3.80 Å
7V3U Cryo-EM structure of MCM double hexamer with structured Mcm4-NSD Deposited 2021-08-11 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain 5 1–775（775 aa）
Chain E 1–775（775 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 10 MG MAGNESIUM ION × 12 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
7V3V Cryo-EM structure of MCM double hexamer bound with DDK in State I Deposited 2021-08-11 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric
Chain 5 1–775（775 aa）
Chain E 1–775（775 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 11 MG MAGNESIUM ION × 12 ZN ZINC ION × 11 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7W8G Cryo-EM structure of MCM double hexamer Deposited 2021-12-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain 5 1–775（775 aa）
Chain E 1–775（775 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 10 MG MAGNESIUM ION × 12 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.52 Å
8B9A S. cerevisiae replisome + Ctf4, bound by pol alpha primase. Complex engaged with a fork DNA substrate containing a 60 nucleotide lagging strand. Deposited 2022-10-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric
Chain 5 1–775（775 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
8B9B S. cerevisiae replisome + Ctf4, bound by pol alpha. Complex engaged with a fork DNA substrate containing a 60 nucleotide lagging strand. Deposited 2022-10-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric
Chain 5 1–775（775 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
8B9C S. cerevisiae pol alpha - replisome complex Deposited 2022-10-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 18 PDB declaration: eicosameric
Chain 5 1–775（775 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.60 Å
8KG6 Yeast replisome in state I Deposited 2023-08-17 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 18 PDB declaration: 20-meric
Chain 5 1–775（775 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 3.07 Å
8KG8 Yeast replisome in state II Deposited 2023-08-17 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 5 1–775（775 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 4.23 Å
8KG9 Yeast replisome in state III Deposited 2023-08-17 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 5 1–775（775 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 4 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 4.52 Å
8P5E S. cerevisiae nexus-sCMGE after DNA replication initiation Deposited 2023-05-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 5 1–775（775 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8P62 S. cerevisiae ssDNA-sCMGE after DNA replication initiation Deposited 2023-05-25 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 14-meric
Chain 5 1–775（775 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8P63 S. cerevisiae consensus-sCMGE on ssDNA after DNA replication initiation Deposited 2023-05-25 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 14-meric
Chain 5 1–775（775 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
8RIF Cryo-EM structure of the MCM double hexamer loaded onto dsDNA. Deposited 2023-12-18 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 5 1–775（775 aa）
Chain D 1–775（775 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 8 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.79 Å
8RIG Cryo-EM structure of an MCM helicase single hexamer loaded onto dsDNA. Deposited 2023-12-18 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric
Chain 5 1–775（775 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.41 Å
8W7M Yeast replisome in state V Deposited 2023-08-30 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 15 PDB declaration: hexadecameric
Chain 5 1–775（775 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 4 ZN ZINC ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 4.12 Å
8W7S Yeast replisome in state IV Deposited 2023-08-31 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 15 PDB declaration: hexadecameric
Chain 5 1–775（775 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 7.39 Å
8XGC Structure of yeast replisome associated with FACT and histone hexamer, Composite map Deposited 2023-12-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric
Chain 5 1–775（775 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
9E2W Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 1 Deposited 2024-10-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 5 1–775（775 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.30 Å
9E2X Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 2 Deposited 2024-10-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 5 1–775（775 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 MG MAGNESIUM ION × 5 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.50 Å
9E2Y Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 3 Deposited 2024-10-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 5 1–775（775 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.20 Å
9GJP OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm5: Conformer 2 Deposited 2024-08-22 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 5 1–775（775 aa）
Mutation：R549A ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9GJW OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm2 Deposited 2024-08-22 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 5 1–775（775 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 6 ZN ZINC ION × 4 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
9GM5 OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm5: Conformer 1 Deposited 2024-08-28 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 5 1–775（775 aa）
Mutation：R549A ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
9I3I Cryo-EM structure of the MCM-ORC (MO) complex featuring an ORC2 regulatory domain involved in cell cycle regulation of MCM-DH loading for DNA replication. Deposited 2025-01-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 5 1–775（775 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；10 second incubation, 3.5 seconds single side blotting.
Resolution 4.40 Å
9RHI pre-Initiation Complex on ARS1 DNA (monomer) Deposited 2025-06-09 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 17 PDB declaration: 19-meric
Chain 5 1–775（775 aa）
Not recorded ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
9RHJ Pre-Initiation Complex on ARS1 DNA (dimer) Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric
Chain 5 1–775（775 aa）
Chain d 1–775（775 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9RHL Phospho-DH bound by Sld3-MBD on ARS1 DNA Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: 16-meric
Chain 5 1–775（775 aa）
Chain d 1–775（775 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9RHM Phospho-MCM double hexamer bound to Sld3-Sld7-Cdc45 on ARS1 DNA Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 17 PDB declaration: 19-meric
Chain 5 1–775（775 aa）
Chain d 1–775（775 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å

54 other PDB entries and 54 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MCM5_YEAST
Isoform —
PDB entities 4
Chains and sequence ranges Author chain 5； PDBConstruct 1–775； UniProt 1–775

DNA replication licensing factor MCM3

Saccharomyces cerevisiae (strain ATCC 204508 / S288c)

UniProt P24279

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein–DNA Heteromer Protein × 6 DNA 1 PDB declaration: heptameric（7） Consistent with all polymer counts Chain 3； UniProt 1–971 Fragment：Mcm5-CTD Mutation：CBP-tag at N-terminus DNA replication licensing factor MCM6 × 1 （P53091） DNA replication licensing factor MCM7 × 1 （P38132） DNA replication licensing factor MCM2 × 1 （P29469） Minichromosome maintenance protein 5 × 1 （P29496） DNA replication licensing factor MCM4 × 1 （P30665） ssDNA, leading-strand template × 1 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 5 ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE；Three microlitres of sample was applied on a grid and incubated for 15-30 s at 4 degC before manually blotting with filter paper for 10 s and plunge-freezing in liquid ethane. Resolution 3.40 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 6SKO Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
28VY sCMGE assembled on ARS1 DNA with Sld2 and RPA Deposited 2026-02-23 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 3 1–971（971 aa）
Not recorded MG MAGNESIUM ION × 6 ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
3JA8 Cryo-EM structure of the MCM2-7 double hexamer Deposited 2015-05-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 3 1–971（971 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
3JC5 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 3 1–971（971 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 4.70 Å
3JC6 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 3 1–971（971 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 3.70 Å R-free 0.331
3JC7 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 3 1–971（971 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 4.80 Å
5BK4 Cryo-EM structure of Mcm2-7 double hexamer on dsDNA Deposited 2017-09-12 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 3 1–971（971 aa）
Chain B 1–971（971 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
5U8S Structure of eukaryotic CMG helicase at a replication fork Deposited 2016-12-14 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: tridecameric
Chain 3 1–971（971 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.10 Å R-free 0.391
5U8T Structure of Eukaryotic CMG Helicase at a Replication Fork and Implications Deposited 2016-12-15 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: dodecameric
Chain 3 1–971（971 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.90 Å R-free 0.394
5V8F Structural basis of MCM2-7 replicative helicase loading by ORC-Cdc6 and Cdt1 Deposited 2017-03-21 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 3 1–971（971 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
5XF8 Cryo-EM structure of the Cdt1-MCM2-7 complex in AMPPNP state Deposited 2017-04-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain 3 1–971（971 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.10 Å
6EYC Re-refinement of the MCM2-7 double hexamer using ISOLDE Deposited 2017-11-11 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 3 1–971（971 aa）
Not recorded ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；All details as per 3ja8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6F0L S. cerevisiae MCM double hexamer bound to duplex DNA Deposited 2017-11-20 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 3 1–971（971 aa）
Chain B 1–971（971 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.77 Å
6HV9 S. cerevisiae CMG-Pol epsilon-DNA Deposited 2018-10-10 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: hexadecameric
Chain 3 1–971（971 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 2 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.98 Å
6PTJ Structure of Ctf4 trimer in complex with one CMG helicase Deposited 2019-07-15 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric
Chain 3 1–971（971 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6PTN Structure of Ctf4 trimer in complex with two CMG helicases Deposited 2019-07-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 25 PDB declaration: 25-meric
Chain 3 1–971（971 aa）
Chain j 1–971（971 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.80 Å
6PTO Structure of Ctf4 trimer in complex with three CMG helicases Deposited 2019-07-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 36 PDB declaration: 36-meric
Chain 3 1–971（971 aa）
Chain G 1–971（971 aa）
Chain i 1–971（971 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.00 Å
6RQC Cryo-EM structure of an MCM loading intermediate Deposited 2019-05-15 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 3 1–971（971 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；10 second incubation, 3.5 seconds single side blotting.
Resolution 4.40 Å
6SKL Cryo-EM structure of the CMG Fork Protection Complex at a replication fork - Conformation 1 Deposited 2019-08-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 3 1–971（971 aa）
Not recorded ZN ZINC ION × 5 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；Three microlitres of sample was applied on a grid and incubated for 15-30 s at 4 degC before manually blotting with filter paper for 10 s and plunge-freezing in liquid ethane.
Resolution 3.70 Å
6U0M Structure of the S. cerevisiae replicative helicase CMG in complex with a forked DNA Deposited 2019-08-14 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: tridecameric
Chain 3 17–738（722 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
6WGC Atomic model of semi-attached mutant OCCM-DNA complex (ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) Deposited 2020-04-05 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 9 PDB declaration: undecameric
Chain 3 1–971（971 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.30 Å
6WGF Atomic model of mutant Mcm2-7 hexamer with Mcm6 WHD truncation Deposited 2020-04-05 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 3 1–971（971 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.70 Å
6WGG Atomic model of pre-insertion mutant OCCM-DNA complex(ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) Deposited 2020-04-05 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 3 1–971（971 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 8.10 Å
6WGI Atomic model of the mutant OCCM (ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) loaded on DNA at 10.5 A resolution Deposited 2020-04-05 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 3 1–971（971 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 10.00 Å
7P30 3.0 A resolution structure of a DNA-loaded MCM double hexamer Deposited 2021-07-06 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 3 1–971（971 aa）
Chain B 1–971（971 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 10 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blotted for 3 seconds before plunging
Resolution 3.00 Å
7P5Z Structure of a DNA-loaded MCM double hexamer engaged with the Dbf4-dependent kinase Deposited 2021-07-15 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 3 1–971（971 aa）
Chain B 1–971（971 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 10 ZN ZINC ION × 11 ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blotted for 3 seconds before plunging
Resolution 3.30 Å
7PMK S. cerevisiae replisome-SCF(Dia2) complex bound to double-stranded DNA (conformation I) Deposited 2021-09-02 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric
Chain 3 1–971（971 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ZN ZINC ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Manual plunger
Resolution 3.20 Å
7PMN S. cerevisiae replisome-SCF(Dia2) complex bound to double-stranded DNA (conformation II) Deposited 2021-09-02 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric
Chain 3 1–971（971 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 MG MAGNESIUM ION × 2 ZN ZINC ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Manual plunger
Resolution 3.20 Å
7PT6 Structure of MCM2-7 DH complexed with Cdc7-Dbf4 in the presence of ATPgS, state III Deposited 2021-09-26 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain 3 1–971（971 aa）
Chain C 1–971（971 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 12 MG MAGNESIUM ION × 14 ZN ZINC ION × 14 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；blot for 1.5 seconds and blot force +2
Resolution 3.20 Å
7PT7 Structure of MCM2-7 DH complexed with Cdc7-Dbf4 in the presence of ADP:BeF3, state I Deposited 2021-09-26 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain 3 1–971（971 aa）
Chain C 1–971（971 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 13 MG MAGNESIUM ION × 14 ZN ZINC ION × 12 BEF BERYLLIUM TRIFLUORIDE ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；blot for 1.5 seconds and blot force +2
Resolution 3.80 Å
7QHS S. cerevisiae CMGE nucleating origin DNA melting Deposited 2021-12-14 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: pentadecameric
Chain 3 1–971（971 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
7V3U Cryo-EM structure of MCM double hexamer with structured Mcm4-NSD Deposited 2021-08-11 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain 3 1–971（971 aa）
Chain C 1–971（971 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 10 MG MAGNESIUM ION × 12 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
7V3V Cryo-EM structure of MCM double hexamer bound with DDK in State I Deposited 2021-08-11 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric
Chain 3 1–971（971 aa）
Chain C 1–971（971 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 11 MG MAGNESIUM ION × 12 ZN ZINC ION × 11 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7W8G Cryo-EM structure of MCM double hexamer Deposited 2021-12-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain 3 1–971（971 aa）
Chain C 1–971（971 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 10 MG MAGNESIUM ION × 12 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.52 Å
7Z13 S. cerevisiae CMGE dimer nucleating origin DNA melting Deposited 2022-02-24 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric
Chain 3 1–971（971 aa）
Chain b 1–971（971 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 8 ZN ZINC ION × 14 MG MAGNESIUM ION × 6 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
8B9A S. cerevisiae replisome + Ctf4, bound by pol alpha primase. Complex engaged with a fork DNA substrate containing a 60 nucleotide lagging strand. Deposited 2022-10-05 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric
Chain 3 1–971（971 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
8B9B S. cerevisiae replisome + Ctf4, bound by pol alpha. Complex engaged with a fork DNA substrate containing a 60 nucleotide lagging strand. Deposited 2022-10-05 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric
Chain 3 1–971（971 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
8B9C S. cerevisiae pol alpha - replisome complex Deposited 2022-10-05 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 18 PDB declaration: eicosameric
Chain 3 1–971（971 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.60 Å
8KG6 Yeast replisome in state I Deposited 2023-08-17 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 18 PDB declaration: 20-meric
Chain 3 1–971（971 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 3.07 Å
8KG8 Yeast replisome in state II Deposited 2023-08-17 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 3 1–971（971 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 4.23 Å
8KG9 Yeast replisome in state III Deposited 2023-08-17 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 3 1–971（971 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 4 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 4.52 Å
8P5E S. cerevisiae nexus-sCMGE after DNA replication initiation Deposited 2023-05-24 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 3 1–971（971 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8P62 S. cerevisiae ssDNA-sCMGE after DNA replication initiation Deposited 2023-05-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 14-meric
Chain 3 1–971（971 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8P63 S. cerevisiae consensus-sCMGE on ssDNA after DNA replication initiation Deposited 2023-05-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 14-meric
Chain 3 1–971（971 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
8RIF Cryo-EM structure of the MCM double hexamer loaded onto dsDNA. Deposited 2023-12-18 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 3 1–971（971 aa）
Chain B 1–971（971 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 8 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.79 Å
8RIG Cryo-EM structure of an MCM helicase single hexamer loaded onto dsDNA. Deposited 2023-12-18 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric
Chain 3 1–971（971 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.41 Å
8W7M Yeast replisome in state V Deposited 2023-08-30 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 15 PDB declaration: hexadecameric
Chain 3 1–971（971 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 4 ZN ZINC ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 4.12 Å
8W7S Yeast replisome in state IV Deposited 2023-08-31 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 15 PDB declaration: hexadecameric
Chain 3 1–971（971 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 7.39 Å
8XGC Structure of yeast replisome associated with FACT and histone hexamer, Composite map Deposited 2023-12-15 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric
Chain 3 1–971（971 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
9E2W Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 1 Deposited 2024-10-23 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 3 1–971（971 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.30 Å
9E2X Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 2 Deposited 2024-10-23 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 3 1–971（971 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 MG MAGNESIUM ION × 5 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.50 Å
9E2Y Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 3 Deposited 2024-10-23 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 3 1–971（971 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.20 Å
9GJP OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm5: Conformer 2 Deposited 2024-08-22 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 3 1–971（971 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9GJW OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm2 Deposited 2024-08-22 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 3 1–971（971 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 6 ZN ZINC ION × 4 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
9GM5 OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm5: Conformer 1 Deposited 2024-08-28 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 3 1–971（971 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
9I3I Cryo-EM structure of the MCM-ORC (MO) complex featuring an ORC2 regulatory domain involved in cell cycle regulation of MCM-DH loading for DNA replication. Deposited 2025-01-23 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 3 1–971（971 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；10 second incubation, 3.5 seconds single side blotting.
Resolution 4.40 Å
9RHI pre-Initiation Complex on ARS1 DNA (monomer) Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 17 PDB declaration: 19-meric
Chain 3 1–971（971 aa）
Not recorded ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
9RHJ Pre-Initiation Complex on ARS1 DNA (dimer) Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric
Chain 3 1–971（971 aa）
Chain b 1–971（971 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9RHL Phospho-DH bound by Sld3-MBD on ARS1 DNA Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: 16-meric
Chain 3 1–971（971 aa）
Chain b 1–971（971 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9RHM Phospho-MCM double hexamer bound to Sld3-Sld7-Cdc45 on ARS1 DNA Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 17 PDB declaration: 19-meric
Chain 3 1–971（971 aa）
Chain b 1–971（971 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å

59 other PDB entries and 59 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MCM3_YEAST
Isoform —
PDB entities 5
Chains and sequence ranges Author chain 3； PDBConstruct 1–971； UniProt 1–971

DNA replication licensing factor MCM4

Saccharomyces cerevisiae (strain ATCC 204508 / S288c)

UniProt P30665

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein–DNA Heteromer Protein × 6 DNA 1 PDB declaration: heptameric（7） Consistent with all polymer counts Chain 4； UniProt 1–933 Fragment：Mcm6-CTD DNA replication licensing factor MCM6 × 1 （P53091） DNA replication licensing factor MCM7 × 1 （P38132） DNA replication licensing factor MCM2 × 1 （P29469） Minichromosome maintenance protein 5 × 1 （P29496） DNA replication licensing factor MCM3 × 1 （P24279） ssDNA, leading-strand template × 1 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 5 ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE；Three microlitres of sample was applied on a grid and incubated for 15-30 s at 4 degC before manually blotting with filter paper for 10 s and plunge-freezing in liquid ethane. Resolution 3.40 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 6SKO Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
28VY sCMGE assembled on ARS1 DNA with Sld2 and RPA Deposited 2026-02-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 4 1–933（933 aa）
Not recorded MG MAGNESIUM ION × 6 ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
3JA8 Cryo-EM structure of the MCM2-7 double hexamer Deposited 2015-05-09 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 4 1–933（933 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
3JC5 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 4 1–933（933 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 4.70 Å
3JC6 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 4 1–933（933 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 3.70 Å R-free 0.331
3JC7 Structure of the eukaryotic replicative CMG helicase and pumpjack motion Deposited 2015-11-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric
Chain 4 1–933（933 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer 20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA；pH 7.5；20 mM Tris acetate, pH 7.5, 40 mM potassium glutamate, 2 mM DTT, 0.1 mM EDTA
cryo-EM vitrification conditions Blot for 3 seconds before plunging；Cryogen ETHANE；Blot for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV).
Resolution 4.80 Å
5BK4 Cryo-EM structure of Mcm2-7 double hexamer on dsDNA Deposited 2017-09-12 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 4 1–933（933 aa）
Chain C 1–933（933 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
5U8S Structure of eukaryotic CMG helicase at a replication fork Deposited 2016-12-14 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: tridecameric
Chain 4 1–933（933 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.10 Å R-free 0.391
5U8T Structure of Eukaryotic CMG Helicase at a Replication Fork and Implications Deposited 2016-12-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: dodecameric
Chain 4 1–933（933 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.90 Å R-free 0.394
5V8F Structural basis of MCM2-7 replicative helicase loading by ORC-Cdc6 and Cdt1 Deposited 2017-03-21 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 4 1–933（933 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
5XF8 Cryo-EM structure of the Cdt1-MCM2-7 complex in AMPPNP state Deposited 2017-04-09 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain 4 1–933（933 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.10 Å
6EYC Re-refinement of the MCM2-7 double hexamer using ISOLDE Deposited 2017-11-11 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 4 1–933（933 aa）
Not recorded ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；All details as per 3ja8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6F0L S. cerevisiae MCM double hexamer bound to duplex DNA Deposited 2017-11-20 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 4 1–933（933 aa）
Chain C 1–933（933 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.77 Å
6HV9 S. cerevisiae CMG-Pol epsilon-DNA Deposited 2018-10-10 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: hexadecameric
Chain 4 1–933（933 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 2 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.98 Å
6PTJ Structure of Ctf4 trimer in complex with one CMG helicase Deposited 2019-07-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric
Chain 4 1–933（933 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6PTN Structure of Ctf4 trimer in complex with two CMG helicases Deposited 2019-07-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 25 PDB declaration: 25-meric
Chain 4 1–933（933 aa）
Chain k 1–933（933 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.80 Å
6PTO Structure of Ctf4 trimer in complex with three CMG helicases Deposited 2019-07-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 36 PDB declaration: 36-meric
Chain 4 1–933（933 aa）
Chain H 1–933（933 aa）
Chain j 1–933（933 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.00 Å
6RQC Cryo-EM structure of an MCM loading intermediate Deposited 2019-05-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 4 1–933（933 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；10 second incubation, 3.5 seconds single side blotting.
Resolution 4.40 Å
6SKL Cryo-EM structure of the CMG Fork Protection Complex at a replication fork - Conformation 1 Deposited 2019-08-16 Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 4 1–933（933 aa）
Not recorded ZN ZINC ION × 5 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；Three microlitres of sample was applied on a grid and incubated for 15-30 s at 4 degC before manually blotting with filter paper for 10 s and plunge-freezing in liquid ethane.
Resolution 3.70 Å
6U0M Structure of the S. cerevisiae replicative helicase CMG in complex with a forked DNA Deposited 2019-08-14 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: tridecameric
Chain 4 177–929（753 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
6WGF Atomic model of mutant Mcm2-7 hexamer with Mcm6 WHD truncation Deposited 2020-04-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain 4 1–933（933 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.70 Å
6WGG Atomic model of pre-insertion mutant OCCM-DNA complex(ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) Deposited 2020-04-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 4 1–933（933 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 8.10 Å
6WGI Atomic model of the mutant OCCM (ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) loaded on DNA at 10.5 A resolution Deposited 2020-04-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 4 1–933（933 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 10.00 Å
7P30 3.0 A resolution structure of a DNA-loaded MCM double hexamer Deposited 2021-07-06 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric
Chain 4 1–933（933 aa）
Chain C 1–933（933 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 10 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blotted for 3 seconds before plunging
Resolution 3.00 Å
7P5Z Structure of a DNA-loaded MCM double hexamer engaged with the Dbf4-dependent kinase Deposited 2021-07-15 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric
Chain 4 1–933（933 aa）
Chain C 1–933（933 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 10 ZN ZINC ION × 11 ADP ADENOSINE-5'-DIPHOSPHATE × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blotted for 3 seconds before plunging
Resolution 3.30 Å
7PMK S. cerevisiae replisome-SCF(Dia2) complex bound to double-stranded DNA (conformation I) Deposited 2021-09-02 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric
Chain 4 1–933（933 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ZN ZINC ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Manual plunger
Resolution 3.20 Å
7PMN S. cerevisiae replisome-SCF(Dia2) complex bound to double-stranded DNA (conformation II) Deposited 2021-09-02 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 20 PDB declaration: 22-meric
Chain 4 1–933（933 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 MG MAGNESIUM ION × 2 ZN ZINC ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Manual plunger
Resolution 3.20 Å
7PT6 Structure of MCM2-7 DH complexed with Cdc7-Dbf4 in the presence of ATPgS, state III Deposited 2021-09-26 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain 4 1–933（933 aa）
Chain D 1–933（933 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 12 MG MAGNESIUM ION × 14 ZN ZINC ION × 14 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；blot for 1.5 seconds and blot force +2
Resolution 3.20 Å
7PT7 Structure of MCM2-7 DH complexed with Cdc7-Dbf4 in the presence of ADP:BeF3, state I Deposited 2021-09-26 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain 4 1–933（933 aa）
Chain D 1–933（933 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 13 MG MAGNESIUM ION × 14 ZN ZINC ION × 12 BEF BERYLLIUM TRIFLUORIDE ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；blot for 1.5 seconds and blot force +2
Resolution 3.80 Å
7QHS S. cerevisiae CMGE nucleating origin DNA melting Deposited 2021-12-14 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: pentadecameric
Chain 4 1–933（933 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
7V3U Cryo-EM structure of MCM double hexamer with structured Mcm4-NSD Deposited 2021-08-11 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain 4 1–933（933 aa）
Chain D 1–933（933 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 10 MG MAGNESIUM ION × 12 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
7V3V Cryo-EM structure of MCM double hexamer bound with DDK in State I Deposited 2021-08-11 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric
Chain 4 1–933（933 aa）
Chain D 1–933（933 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 11 MG MAGNESIUM ION × 12 ZN ZINC ION × 11 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7W8G Cryo-EM structure of MCM double hexamer Deposited 2021-12-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain 4 1–933（933 aa）
Chain D 1–933（933 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 10 MG MAGNESIUM ION × 12 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.52 Å
7Z13 S. cerevisiae CMGE dimer nucleating origin DNA melting Deposited 2022-02-24 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein–DNA Heteromer；Protein × 26 PDB declaration: 28-meric
Chain 4 1–933（933 aa）
Chain c 1–933（933 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 8 ZN ZINC ION × 14 MG MAGNESIUM ION × 6 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
8B9A S. cerevisiae replisome + Ctf4, bound by pol alpha primase. Complex engaged with a fork DNA substrate containing a 60 nucleotide lagging strand. Deposited 2022-10-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric
Chain 4 1–933（933 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
8B9B S. cerevisiae replisome + Ctf4, bound by pol alpha. Complex engaged with a fork DNA substrate containing a 60 nucleotide lagging strand. Deposited 2022-10-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 21 PDB declaration: 23-meric
Chain 4 1–933（933 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
8B9C S. cerevisiae pol alpha - replisome complex Deposited 2022-10-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 18 PDB declaration: eicosameric
Chain 4 1–933（933 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.60 Å
8KG6 Yeast replisome in state I Deposited 2023-08-17 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 18 PDB declaration: 20-meric
Chain 4 1–933（933 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 3.07 Å
8KG8 Yeast replisome in state II Deposited 2023-08-17 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 4 1–933（933 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 4.23 Å
8KG9 Yeast replisome in state III Deposited 2023-08-17 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 16 PDB declaration: octadecameric
Chain 4 1–933（933 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 4 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 4.52 Å
8P5E S. cerevisiae nexus-sCMGE after DNA replication initiation Deposited 2023-05-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 4 1–933（933 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8P62 S. cerevisiae ssDNA-sCMGE after DNA replication initiation Deposited 2023-05-25 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 14-meric
Chain 4 1–933（933 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8P63 S. cerevisiae consensus-sCMGE on ssDNA after DNA replication initiation Deposited 2023-05-25 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 14-meric
Chain 4 1–933（933 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ZN ZINC ION × 7 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
8RIF Cryo-EM structure of the MCM double hexamer loaded onto dsDNA. Deposited 2023-12-18 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 4 1–933（933 aa）
Chain C 1–933（933 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 8 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.79 Å
8RIG Cryo-EM structure of an MCM helicase single hexamer loaded onto dsDNA. Deposited 2023-12-18 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric
Chain 4 1–933（933 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.41 Å
8W7M Yeast replisome in state V Deposited 2023-08-30 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 15 PDB declaration: hexadecameric
Chain 4 1–933（933 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 4 ZN ZINC ION × 5 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 4.12 Å
8W7S Yeast replisome in state IV Deposited 2023-08-31 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 15 PDB declaration: hexadecameric
Chain 4 1–933（933 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；blot with filter paper for 3-4 seconds before plunging.
Resolution 7.39 Å
8XGC Structure of yeast replisome associated with FACT and histone hexamer, Composite map Deposited 2023-12-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 27 PDB declaration: 29-meric
Chain 4 1–933（933 aa）
Not recorded ZN ZINC ION × 7 ADP ADENOSINE-5'-DIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
9E2W Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 1 Deposited 2024-10-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 4 1–933（933 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.30 Å
9E2X Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 2 Deposited 2024-10-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 4 1–933（933 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 MG MAGNESIUM ION × 5 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.50 Å
9E2Y Cryo-EM structure of yeast CMG helicase stalled at G4-containing DNA template, state 3 Deposited 2024-10-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 4 1–933（933 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Wait time 30 seconds after sample application; blot time 30 seconds with blot force 0
Resolution 3.20 Å
9GJP OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm5: Conformer 2 Deposited 2024-08-22 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 4 1–933（933 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9GJW OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm2 Deposited 2024-08-22 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 4 1–933（933 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 6 ZN ZINC ION × 4 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
9GM5 OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm5: Conformer 1 Deposited 2024-08-28 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric
Chain 4 1–933（933 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
9I3I Cryo-EM structure of the MCM-ORC (MO) complex featuring an ORC2 regulatory domain involved in cell cycle regulation of MCM-DH loading for DNA replication. Deposited 2025-01-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric
Chain 4 1–933（933 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；10 second incubation, 3.5 seconds single side blotting.
Resolution 4.40 Å
9RHI pre-Initiation Complex on ARS1 DNA (monomer) Deposited 2025-06-09 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 17 PDB declaration: 19-meric
Chain 4 1–933（933 aa）
Not recorded ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
9RHJ Pre-Initiation Complex on ARS1 DNA (dimer) Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein–DNA Heteromer；Protein × 30 PDB declaration: 32-meric
Chain 4 1–933（933 aa）
Chain c 1–933（933 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9RHL Phospho-DH bound by Sld3-MBD on ARS1 DNA Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: 16-meric
Chain 4 1–933（933 aa）
Chain c 1–933（933 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9RHM Phospho-MCM double hexamer bound to Sld3-Sld7-Cdc45 on ARS1 DNA Deposited 2025-06-09 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 17 PDB declaration: 19-meric
Chain 4 1–933（933 aa）
Chain c 1–933（933 aa）
Not recorded ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å

58 other PDB entries and 58 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MCM4_YEAST
Isoform —
PDB entities 6
Chains and sequence ranges Author chain 4； PDBConstruct 1–933； UniProt 1–933

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 6sko

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6sko
Download Download
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6sko
Deposition date deposition_date2019-08-16
Structure title titleCryo-EM Structure of the Fork Protection Complex Bound to CMG at a Replication Fork - conformation 2 MCM CTD:ssDNA
Keywords keywordsprotein-DNA complex, replisome, AAA+ helicase, CMG, GINS, fork DNA, MCM, fork protection complex, CIP-box, REPLICATION; REPLICATION
Experimental Method methodELECTRON MICROSCOPY
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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier42.92 Å
Radius of gyration Rg (electron density) rg_electron42.78 Å
Forward intensity I(0) i0767397000.00
Molecular weight molecular_weight224650.0 kDa
Excluded volume excluded_volume280080 ų
Envelope volume envelope_volume385670 ų
Hydration-shell volume shell_volume72700 ų
Envelope diameter envelope_diameter137.4 Å
Shell Rg shell_rg50.28 Å
Envelope Rg envelope_rg42.03 Å
Shape Rg shape_rg42.83 Å
Total Rg total_rg42.96 Å
Total atoms total_atoms31618
Residues n_residues1971
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 Å−1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3
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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax135.2 Å
Rg (real space) rg_real42.78 Å
Rg uncertainty (real space) rg_real_error0.89 Å
I(0) (real space) i0_real7.6740e+08
I(0) uncertainty (real space) i0_real_error1.2830e+07
Rg (reciprocal space) rg_reciprocal42.91 Å
I(0) (reciprocal space) i0_reciprocal767500000.0000
Solution quality estimate total_estimate0.8354
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary51.1 Å
Skewness Skewness skewness0.165
Kurtosis Kurtosis kurtosis-0.624
Angular range angular_range— – 0.1850 Å−1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha164600000.0000
Real-space data points n_real_points38
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.953; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.000
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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (9)

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7. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id6sko300
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
Domain ID domain_id6sko500
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
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8. Citations (1)

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9. Files and Curves (10)