Structure of human MCM2-7 single hexamer with MCM3-WHD attached to MCM2-CTD

DNA replication licensing factor MCM2

Homo sapiens

UniProt P49736

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 heterocomplex Heteromer Protein × 6 PDB declaration: hexameric（6） Consistent with protein copy count	Chain 2； UniProt 1–904	Not recorded	DNA replication licensing factor MCM3 × 1 （P25205） DNA replication licensing factor MCM4 × 1 （P33991） DNA replication licensing factor MCM5 × 1 （P33992） DNA replication licensing factor MCM6 × 1 （Q14566） DNA replication licensing factor MCM7 × 1 （P33993） ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.47 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 9UQ0	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
22VT Structure of human MCM2-7 single hexamer with MCM3-WHD attached to MCM2-CTD, containing Meier-Gorlin Syndrome mutation (MCM3-Q761L) Deposited 2026-01-26	Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 2 1–904（904 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 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
4UUZ MCM2-histone complex Deposited 2014-08-01	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain C 69–138（70 aa） Fragment：RESIDUES 69-138	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；0.1M HEPES PH7, 21% PEG3000	Resolution 2.90 Å R-free 0.230
5BNV Crystal structure of Human MCM2 HBD chaperoning a histone H3-H4 tetramer Deposited 2015-05-26	Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain C 61–130（70 aa） Fragment：UNP residues 61-130 Chain F 61–130（70 aa） Fragment：UNP residues 61-130	Not recorded	PO4 PHOSPHATE ION × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；293 K；1.5 M sodium/potassium phosphate, pH 8.0	Resolution 2.79 Å R-free 0.220
5BNX Crystal structure of Human MCM2 HBD and ASF1b chaperoning a histone H3.3-H4 dimer Deposited 2015-05-26	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain C 61–130（70 aa） Fragment：UNP residues 61-130	Not recorded	GOL GLYCEROL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；293 K；3.2 M sodium formate, 0.1 M Tris, pH 8.5	Resolution 2.31 Å R-free 0.213
5BO0 Crystal structure of Human MCM2 HBD and ASF1b chaperoning a histone H3.2-H4 dimer Deposited 2015-05-26	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain C 61–130（70 aa） Fragment：UNP residues 61-130	Not recorded	GOL GLYCEROL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；293 K；3.2 M sodium formate, 0.1 M Tris, pH 8.5	Resolution 2.91 Å R-free 0.238
5C3I Crystal structure of the quaternary complex of histone H3-H4 heterodimer with chaperone ASF1 and the replicative helicase subunit MCM2 Deposited 2015-06-17	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain L 63–124（62 aa） Fragment：UNP residues 63-154	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；289 K；20% PEG 3350, 2% Tacsimate,0.1 M Tris-HCl pH 8.0	Resolution 3.50 Å R-free 0.253
5C3I Crystal structure of the quaternary complex of histone H3-H4 heterodimer with chaperone ASF1 and the replicative helicase subunit MCM2 Deposited 2015-06-17	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain D 63–124（62 aa） Fragment：UNP residues 63-154	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；289 K；20% PEG 3350, 2% Tacsimate,0.1 M Tris-HCl pH 8.0	Resolution 3.50 Å R-free 0.253
5C3I Crystal structure of the quaternary complex of histone H3-H4 heterodimer with chaperone ASF1 and the replicative helicase subunit MCM2 Deposited 2015-06-17	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain H 63–124（62 aa） Fragment：UNP residues 63-154	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；289 K；20% PEG 3350, 2% Tacsimate,0.1 M Tris-HCl pH 8.0	Resolution 3.50 Å R-free 0.253
5C3I Crystal structure of the quaternary complex of histone H3-H4 heterodimer with chaperone ASF1 and the replicative helicase subunit MCM2 Deposited 2015-06-17	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain P 63–124（62 aa） Fragment：UNP residues 63-154	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；289 K；20% PEG 3350, 2% Tacsimate,0.1 M Tris-HCl pH 8.0	Resolution 3.50 Å R-free 0.253
5C3I Crystal structure of the quaternary complex of histone H3-H4 heterodimer with chaperone ASF1 and the replicative helicase subunit MCM2 Deposited 2015-06-17	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 5 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain T 63–124（62 aa） Fragment：UNP residues 63-154	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；289 K；20% PEG 3350, 2% Tacsimate,0.1 M Tris-HCl pH 8.0	Resolution 3.50 Å R-free 0.253
5C3I Crystal structure of the quaternary complex of histone H3-H4 heterodimer with chaperone ASF1 and the replicative helicase subunit MCM2 Deposited 2015-06-17	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 6 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain X 63–124（62 aa） Fragment：UNP residues 63-154	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；289 K；20% PEG 3350, 2% Tacsimate,0.1 M Tris-HCl pH 8.0	Resolution 3.50 Å R-free 0.253
5JA4 Crystal structure of human TONSL and MCM2 HBDs binding to a histone H3-H4 tetramer Deposited 2016-04-11	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric	Chain C 61–130（70 aa）	Not recorded	MES 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 2 GOL GLYCEROL × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.6；298 K；0.1M MES pH 5.6, 7% isopropanol	Resolution 2.42 Å R-free 0.246
6XTX CryoEM structure of human CMG bound to ATPgammaS and DNA Deposited 2020-01-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: dodecameric	Chain 2 1–904（904 aa）	Not recorded	ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 2 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.29 Å
6XTY CryoEM structure of human CMG bound to AND-1 (CMGA) Deposited 2020-01-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 2 1–904（904 aa）	Not recorded	ZN ZINC ION × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.77 Å
6YA7 Cdc7-Dbf4 bound to an Mcm2-S40 derived bivalent substrate Deposited 2020-03-11	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain C 33–47（15 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	ZN ZINC ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；291.15 K；0.1M PCTP pH7, 18% PEG 1500, 8% MPD	Resolution 1.67 Å R-free 0.185
7CIZ Crystal structure of DNAJC9 HBD helix2 in complex with H3.3-H4 dimer and MCM2 HBD Deposited 2020-07-08	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain C 61–130（70 aa）	Not recorded	SO4 SULFATE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.05 M Lithium sulfate, 0.05 M Sodium sulfate; 0.05 M Tris, pH 8.5, 30% (v/v) PEG400.	Resolution 1.80 Å R-free 0.214
7CIZ Crystal structure of DNAJC9 HBD helix2 in complex with H3.3-H4 dimer and MCM2 HBD Deposited 2020-07-08	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain G 61–130（70 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.05 M Lithium sulfate, 0.05 M Sodium sulfate; 0.05 M Tris, pH 8.5, 30% (v/v) PEG400.	Resolution 1.80 Å R-free 0.214
7CIZ Crystal structure of DNAJC9 HBD helix2 in complex with H3.3-H4 dimer and MCM2 HBD Deposited 2020-07-08	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain K 61–130（70 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.05 M Lithium sulfate, 0.05 M Sodium sulfate; 0.05 M Tris, pH 8.5, 30% (v/v) PEG400.	Resolution 1.80 Å R-free 0.214
7CJ0 Crystal structure of DNAJC9 HBD in complex with H3.3-H4 dimer and MCM2 HBD Deposited 2020-07-09	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain G 61–130（70 aa）	Not recorded	GOL GLYCEROL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.17 M Sodium acetate, 0.1 M Tris, pH8.5, 25% (v/v) PEG 4000, 20% (v/v) Glycerol	Resolution 2.50 Å R-free 0.295
7CJ0 Crystal structure of DNAJC9 HBD in complex with H3.3-H4 dimer and MCM2 HBD Deposited 2020-07-09	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain H 61–130（70 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.17 M Sodium acetate, 0.1 M Tris, pH8.5, 25% (v/v) PEG 4000, 20% (v/v) Glycerol	Resolution 2.50 Å R-free 0.295
7PFO Core human replisome Deposited 2021-08-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 19 PDB declaration: 21-meric	Chain 2 1–904（904 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 3 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 SO4 SULFATE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
7PLO H. sapiens replisome-CUL2/LRR1 complex Deposited 2021-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 24 PDB declaration: 26-meric	Chain 2 1–904（904 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 3 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 SO4 SULFATE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7W1Y Human MCM double hexamer bound to natural DNA duplex (polyAT/polyTA) Deposited 2021-11-21	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 2 1–904（904 aa） Chain A 1–904（904 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 12 ATP ADENOSINE-5'-TRIPHOSPHATE × 8 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；Solutions were made fresh from concentrated to avoid microbial contamination cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.59 Å
7W68 human single hexameric Mcm2-7 complex Deposited 2021-12-01	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain A 1–904（904 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen NITROGEN	Resolution 4.40 Å
8B9D Human replisome bound by Pol Alpha 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 2 1–904（904 aa）	Not recorded	ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8RWV Human OCCM DNA licensing intermediate Deposited 2024-02-05	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric	Chain 2 1–904（904 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.68 Å
8S09 H. sapiens MCM2-7 double hexamer bound to double stranded DNA Deposited 2024-02-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric	Chain 2 1–904（904 aa） Chain A 1–904（904 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 8 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S0A H. sapiens MCM2-7 hexamer bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric	Chain 2 1–904（904 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 5 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
8S0B H. sapiens MCM bound to double stranded DNA and ORC6 as part of the MCM-ORC complex Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric	Chain 2 1–904（904 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8S0D H. sapiens MCM bound to double stranded DNA and ORC1-6 Deposited 2024-02-13	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 2 1–902（902 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 8 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8S0E H. sapiens OCCM bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: pentadecameric	Chain 2 1–904（904 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 5 ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8S0F H. sapiens OC1M bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 2 1–904（904 aa）	Not recorded	MG MAGNESIUM ION × 5 ZN ZINC ION × 1 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8W0E Cryo-EM structure of a human MCM2-7 single hexamer on dsDNA Deposited 2024-02-13	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 1–904（904 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8W0F Cryo-EM structure of a human MCM2-7 double hexamer on dsDNA Deposited 2024-02-13	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 1–904（904 aa） Chain A 1–904（904 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 10 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8W0G Cryo-EM structure of a human MCM2-7 dimer Deposited 2024-02-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: 12-meric	Chain 2 1–904（904 aa） Chain A 1–904（904 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 10 ATP ADENOSINE-5'-TRIPHOSPHATE × 8 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8W0I Cryo-EM structure of the human MCM2-7 heterohexamer Deposited 2024-02-13	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 2 1–904（904 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
8YJF Structure of human SPT16 MD-CTD and MCM2 HBD chaperoning a histone H3-H4 tetramer and an H2A-H2B dimer Deposited 2024-03-01	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric	Chain B 63–154（92 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；289 K；0.1 M calcium acetate, 0.1 M Sodium cacodylate pH 5.5, 12% (w/v) PEG 8000	Resolution 4.40 Å R-free 0.312
8YJM Structure of human SPT16 MD-CTD and MCM2 HBD chaperoning a histone H3-H4 tetramer and a single chain H2B-H2A chimera Deposited 2024-03-02	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 7 PDB declaration: heptameric	Chain B 63–154（92 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；289 K；0.2 M sodium acetate, 0.1 M sodium citrate pH 5.5, 5%(w/v) PEG 4000	Resolution 4.15 Å R-free 0.286
9C6G Mcm double hexamer from human Deposited 2024-06-07	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain 2 1–904（904 aa） Chain 8 1–904（904 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.26 Å
9CAQ Cryo-EM structure of a human MCM2-7 double hexamer formed from independently loaded MCM2-7 single hexamers Deposited 2024-06-17	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 2 1–904（904 aa） Chain A 1–904（904 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 9 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
9E2Z Cryo-EM structure of human CMG helicase stalled at G4-containing DNA template Deposited 2024-10-23	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: 13-meric	Chain 2 1–904（904 aa）	Not recorded	ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ZN ZINC ION × 4 K POTASSIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE；30 second wait time after sample application; 30 second blot time, blot force 0	Resolution 2.60 Å
9LXD Structure of DNA-free MCM SH at 3.2 Angstroms resolution Deposited 2025-02-18	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric	Chain 2 1–904（904 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.27 Å
9LXE Structure of compacted DNA-free MCM DH at 3.9 Angstroms resolution Deposited 2025-02-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 2 1–904（904 aa） Chain D 1–904（904 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.96 Å
9LXF Structure of extended DNA-free MCM DH at 3.8 Angstroms resolution Deposited 2025-02-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 2 1–904（904 aa） Chain D 1–904（904 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.86 Å
9VLN Structure of human MCM2-7 single hexamer without MCM3 CTE, state 1 Deposited 2025-06-25	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 2 1–904（904 aa）	Not recorded	MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.42 Å
9VLW Structure of human MCM2-7 single hexamer without MCM3 CTE, state 2 Deposited 2025-06-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 2 1–904（904 aa）	Not recorded	MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.06 Å

38 other PDB entries and 46 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	MCM2_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain 2； PDBConstruct 1–904； UniProt 1–904

DNA replication licensing factor MCM3

Homo sapiens

UniProt P25205

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 heterocomplex Heteromer Protein × 6 PDB declaration: hexameric（6） Consistent with protein copy count	Chain 3； UniProt 1–808	Not recorded	DNA replication licensing factor MCM2 × 1 （P49736） DNA replication licensing factor MCM4 × 1 （P33991） DNA replication licensing factor MCM5 × 1 （P33992） DNA replication licensing factor MCM6 × 1 （Q14566） DNA replication licensing factor MCM7 × 1 （P33993） ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.47 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 9UQ0	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
22VT Structure of human MCM2-7 single hexamer with MCM3-WHD attached to MCM2-CTD, containing Meier-Gorlin Syndrome mutation (MCM3-Q761L) Deposited 2026-01-26	Different mutation/modification Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 3 1–808（808 aa）	Mutation：Q761L	ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 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
6XTX CryoEM structure of human CMG bound to ATPgammaS and DNA Deposited 2020-01-16	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: dodecameric	Chain 3 1–853（853 aa）	Not recorded	ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 2 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.29 Å
6XTY CryoEM structure of human CMG bound to AND-1 (CMGA) Deposited 2020-01-16	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 3 1–853（853 aa）	Not recorded	ZN ZINC ION × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.77 Å
7PFO Core human replisome Deposited 2021-08-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 19 PDB declaration: 21-meric	Chain 3 1–808（808 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 3 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 SO4 SULFATE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
7PLO H. sapiens replisome-CUL2/LRR1 complex Deposited 2021-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 24 PDB declaration: 26-meric	Chain 3 1–808（808 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 3 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 SO4 SULFATE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7W1Y Human MCM double hexamer bound to natural DNA duplex (polyAT/polyTA) Deposited 2021-11-21	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 3 1–853（853 aa） Chain B 1–853（853 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 12 ATP ADENOSINE-5'-TRIPHOSPHATE × 8 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；Solutions were made fresh from concentrated to avoid microbial contamination cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.59 Å
7W68 human single hexameric Mcm2-7 complex Deposited 2021-12-01	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain B 1–808（808 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen NITROGEN	Resolution 4.40 Å
8B9D Human replisome bound by Pol Alpha 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 3 1–808（808 aa）	Not recorded	ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8RWV Human OCCM DNA licensing intermediate Deposited 2024-02-05	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric	Chain 3 1–853（853 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.68 Å
8S09 H. sapiens MCM2-7 double hexamer bound to double stranded DNA Deposited 2024-02-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric	Chain 3 1–808（808 aa） Chain B 1–808（808 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 8 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S0A H. sapiens MCM2-7 hexamer bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric	Chain 3 1–808（808 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 5 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
8S0B H. sapiens MCM bound to double stranded DNA and ORC6 as part of the MCM-ORC complex Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric	Chain 3 1–808（808 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8S0D H. sapiens MCM bound to double stranded DNA and ORC1-6 Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 3 1–808（808 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 8 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8S0E H. sapiens OCCM bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: pentadecameric	Chain 3 1–808（808 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 5 ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8S0F H. sapiens OC1M bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 3 1–808（808 aa）	Not recorded	MG MAGNESIUM ION × 5 ZN ZINC ION × 1 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8W0E Cryo-EM structure of a human MCM2-7 single hexamer on dsDNA Deposited 2024-02-13	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 3 2–808（807 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8W0F Cryo-EM structure of a human MCM2-7 double hexamer on dsDNA Deposited 2024-02-13	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 2–808（807 aa） Chain B 2–808（807 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 10 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8W0G Cryo-EM structure of a human MCM2-7 dimer Deposited 2024-02-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: 12-meric	Chain 3 2–808（807 aa） Chain B 2–808（807 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 10 ATP ADENOSINE-5'-TRIPHOSPHATE × 8 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8W0I Cryo-EM structure of the human MCM2-7 heterohexamer Deposited 2024-02-13	Different construct Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 3 2–808（807 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9C6G Mcm double hexamer from human Deposited 2024-06-07	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain 3 1–808（808 aa） Chain 9 1–808（808 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.26 Å
9CAQ Cryo-EM structure of a human MCM2-7 double hexamer formed from independently loaded MCM2-7 single hexamers Deposited 2024-06-17	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 3 1–808（808 aa） Chain B 1–808（808 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 9 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
9E2Z Cryo-EM structure of human CMG helicase stalled at G4-containing DNA template 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 × 11 PDB declaration: 13-meric	Chain 3 1–853（853 aa）	Not recorded	ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ZN ZINC ION × 4 K POTASSIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE；30 second wait time after sample application; 30 second blot time, blot force 0	Resolution 2.60 Å
9LXD Structure of DNA-free MCM SH at 3.2 Angstroms resolution Deposited 2025-02-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric	Chain 3 1–853（853 aa） Chain B 1–853（853 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.27 Å
9LXE Structure of compacted DNA-free MCM DH at 3.9 Angstroms resolution Deposited 2025-02-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 3 1–853（853 aa） Chain B 1–853（853 aa） Chain C 1–853（853 aa） Chain E 1–853（853 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.96 Å
9LXF Structure of extended DNA-free MCM DH at 3.8 Angstroms resolution Deposited 2025-02-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 3 1–853（853 aa） Chain B 1–853（853 aa） Chain C 1–853（853 aa） Chain E 1–853（853 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.86 Å
9VLN Structure of human MCM2-7 single hexamer without MCM3 CTE, state 1 Deposited 2025-06-25	Different construct Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 3 1–670（670 aa）	Not recorded	MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.42 Å
9VLW Structure of human MCM2-7 single hexamer without MCM3 CTE, state 2 Deposited 2025-06-26	Different construct Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 3 1–670（670 aa）	Not recorded	MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.06 Å

27 other PDB entries and 27 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	MCM3_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain 3； PDBConstruct 1–808； UniProt 1–808

DNA replication licensing factor MCM4

Homo sapiens

UniProt P33991

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 heterocomplex Heteromer Protein × 6 PDB declaration: hexameric（6） Consistent with protein copy count	Chain 4； UniProt 1–863	Not recorded	DNA replication licensing factor MCM2 × 1 （P49736） DNA replication licensing factor MCM3 × 1 （P25205） DNA replication licensing factor MCM5 × 1 （P33992） DNA replication licensing factor MCM6 × 1 （Q14566） DNA replication licensing factor MCM7 × 1 （P33993） ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.47 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 9UQ0	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
22VT Structure of human MCM2-7 single hexamer with MCM3-WHD attached to MCM2-CTD, containing Meier-Gorlin Syndrome mutation (MCM3-Q761L) Deposited 2026-01-26	Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 4 1–863（863 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 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
6XTX CryoEM structure of human CMG bound to ATPgammaS and DNA Deposited 2020-01-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: dodecameric	Chain 4 1–863（863 aa）	Not recorded	ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 2 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.29 Å
6XTY CryoEM structure of human CMG bound to AND-1 (CMGA) Deposited 2020-01-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 4 1–863（863 aa）	Not recorded	ZN ZINC ION × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.77 Å
7PFO Core human replisome Deposited 2021-08-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 19 PDB declaration: 21-meric	Chain 4 1–863（863 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 3 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 SO4 SULFATE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
7PLO H. sapiens replisome-CUL2/LRR1 complex Deposited 2021-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 24 PDB declaration: 26-meric	Chain 4 1–863（863 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 3 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 SO4 SULFATE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7W1Y Human MCM double hexamer bound to natural DNA duplex (polyAT/polyTA) Deposited 2021-11-21	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 4 1–863（863 aa） Chain C 1–863（863 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 12 ATP ADENOSINE-5'-TRIPHOSPHATE × 8 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；Solutions were made fresh from concentrated to avoid microbial contamination cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.59 Å
7W68 human single hexameric Mcm2-7 complex Deposited 2021-12-01	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain C 1–863（863 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen NITROGEN	Resolution 4.40 Å
8B9D Human replisome bound by Pol Alpha 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 4 1–863（863 aa）	Not recorded	ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8RWV Human OCCM DNA licensing intermediate Deposited 2024-02-05	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric	Chain 4 1–863（863 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.68 Å
8S09 H. sapiens MCM2-7 double hexamer bound to double stranded DNA Deposited 2024-02-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric	Chain 4 1–863（863 aa） Chain C 1–863（863 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 8 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S0A H. sapiens MCM2-7 hexamer bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric	Chain 4 1–863（863 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 5 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
8S0B H. sapiens MCM bound to double stranded DNA and ORC6 as part of the MCM-ORC complex Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric	Chain 4 1–863（863 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8S0D H. sapiens MCM bound to double stranded DNA and ORC1-6 Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 4 1–863（863 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 8 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8S0E H. sapiens OCCM bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: pentadecameric	Chain 4 1–863（863 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 5 ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8S0F H. sapiens OC1M bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 4 1–863（863 aa）	Not recorded	MG MAGNESIUM ION × 5 ZN ZINC ION × 1 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8W0E Cryo-EM structure of a human MCM2-7 single hexamer on dsDNA Deposited 2024-02-13	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 1–863（863 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8W0F Cryo-EM structure of a human MCM2-7 double hexamer on dsDNA Deposited 2024-02-13	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 1–863（863 aa） Chain C 1–863（863 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 10 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8W0G Cryo-EM structure of a human MCM2-7 dimer Deposited 2024-02-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: 12-meric	Chain 4 1–863（863 aa） Chain C 1–863（863 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 10 ATP ADENOSINE-5'-TRIPHOSPHATE × 8 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8W0I Cryo-EM structure of the human MCM2-7 heterohexamer Deposited 2024-02-13	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 4 1–863（863 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9C6G Mcm double hexamer from human Deposited 2024-06-07	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain 0 1–863（863 aa） Chain 4 1–863（863 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.26 Å
9CAQ Cryo-EM structure of a human MCM2-7 double hexamer formed from independently loaded MCM2-7 single hexamers Deposited 2024-06-17	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 4 1–863（863 aa） Chain C 1–863（863 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 9 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
9E2Z Cryo-EM structure of human CMG helicase stalled at G4-containing DNA template Deposited 2024-10-23	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: 13-meric	Chain 4 1–863（863 aa）	Not recorded	ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ZN ZINC ION × 4 K POTASSIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE；30 second wait time after sample application; 30 second blot time, blot force 0	Resolution 2.60 Å
9LXD Structure of DNA-free MCM SH at 3.2 Angstroms resolution Deposited 2025-02-18	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric	Chain 4 1–863（863 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.27 Å
9LXE Structure of compacted DNA-free MCM DH at 3.9 Angstroms resolution Deposited 2025-02-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 4 1–863（863 aa） Chain F 1–863（863 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.96 Å
9LXF Structure of extended DNA-free MCM DH at 3.8 Angstroms resolution Deposited 2025-02-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 4 1–863（863 aa） Chain F 1–863（863 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.86 Å
9VLN Structure of human MCM2-7 single hexamer without MCM3 CTE, state 1 Deposited 2025-06-25	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 4 1–863（863 aa）	Not recorded	MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.42 Å
9VLW Structure of human MCM2-7 single hexamer without MCM3 CTE, state 2 Deposited 2025-06-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 4 1–863（863 aa）	Not recorded	MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.06 Å

27 other PDB entries and 27 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	MCM4_HUMAN
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain 4； PDBConstruct 1–863； UniProt 1–863

DNA replication licensing factor MCM5

Homo sapiens

UniProt P33992

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 heterocomplex Heteromer Protein × 6 PDB declaration: hexameric（6） Consistent with protein copy count	Chain 5； UniProt 1–734	Not recorded	DNA replication licensing factor MCM2 × 1 （P49736） DNA replication licensing factor MCM3 × 1 （P25205） DNA replication licensing factor MCM4 × 1 （P33991） DNA replication licensing factor MCM6 × 1 （Q14566） DNA replication licensing factor MCM7 × 1 （P33993） ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.47 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 9UQ0	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
22VT Structure of human MCM2-7 single hexamer with MCM3-WHD attached to MCM2-CTD, containing Meier-Gorlin Syndrome mutation (MCM3-Q761L) Deposited 2026-01-26	Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 5 1–734（734 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 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
6XTX CryoEM structure of human CMG bound to ATPgammaS and DNA Deposited 2020-01-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: dodecameric	Chain 5 1–734（734 aa）	Not recorded	ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 2 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.29 Å
6XTY CryoEM structure of human CMG bound to AND-1 (CMGA) Deposited 2020-01-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 5 1–734（734 aa）	Not recorded	ZN ZINC ION × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.77 Å
7PFO Core human replisome Deposited 2021-08-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 19 PDB declaration: 21-meric	Chain 5 1–734（734 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 3 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 SO4 SULFATE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
7PLO H. sapiens replisome-CUL2/LRR1 complex Deposited 2021-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 24 PDB declaration: 26-meric	Chain 5 1–734（734 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 3 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 SO4 SULFATE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7W1Y Human MCM double hexamer bound to natural DNA duplex (polyAT/polyTA) Deposited 2021-11-21	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 5 1–734（734 aa） Chain D 1–734（734 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 12 ATP ADENOSINE-5'-TRIPHOSPHATE × 8 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；Solutions were made fresh from concentrated to avoid microbial contamination cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.59 Å
7W68 human single hexameric Mcm2-7 complex Deposited 2021-12-01	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain D 1–734（734 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen NITROGEN	Resolution 4.40 Å
8B9D Human replisome bound by Pol Alpha 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 5 1–734（734 aa）	Not recorded	ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8S09 H. sapiens MCM2-7 double hexamer bound to double stranded DNA Deposited 2024-02-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric	Chain 5 1–734（734 aa） Chain D 1–734（734 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 8 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S0A H. sapiens MCM2-7 hexamer bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric	Chain 5 1–734（734 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 5 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
8S0B H. sapiens MCM bound to double stranded DNA and ORC6 as part of the MCM-ORC complex Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric	Chain 5 1–734（734 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8S0D H. sapiens MCM bound to double stranded DNA and ORC1-6 Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 5 1–734（734 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 8 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8S0E H. sapiens OCCM bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: pentadecameric	Chain 5 1–734（734 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 5 ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8S0F H. sapiens OC1M bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 5 1–734（734 aa）	Not recorded	MG MAGNESIUM ION × 5 ZN ZINC ION × 1 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8W0E Cryo-EM structure of a human MCM2-7 single hexamer on dsDNA Deposited 2024-02-13	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 1–734（734 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8W0F Cryo-EM structure of a human MCM2-7 double hexamer on dsDNA Deposited 2024-02-13	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 1–734（734 aa） Chain D 1–734（734 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 10 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8W0G Cryo-EM structure of a human MCM2-7 dimer Deposited 2024-02-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: 12-meric	Chain 5 1–734（734 aa） Chain D 1–734（734 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 10 ATP ADENOSINE-5'-TRIPHOSPHATE × 8 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8W0I Cryo-EM structure of the human MCM2-7 heterohexamer Deposited 2024-02-13	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 5 1–734（734 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9C6G Mcm double hexamer from human Deposited 2024-06-07	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain 5 1–734（734 aa） Chain A 1–734（734 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.26 Å
9CAQ Cryo-EM structure of a human MCM2-7 double hexamer formed from independently loaded MCM2-7 single hexamers Deposited 2024-06-17	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 5 1–734（734 aa） Chain D 1–734（734 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 9 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
9E2Z Cryo-EM structure of human CMG helicase stalled at G4-containing DNA template Deposited 2024-10-23	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: 13-meric	Chain 5 1–734（734 aa）	Not recorded	ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ZN ZINC ION × 4 K POTASSIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE；30 second wait time after sample application; 30 second blot time, blot force 0	Resolution 2.60 Å
9LXD Structure of DNA-free MCM SH at 3.2 Angstroms resolution Deposited 2025-02-18	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric	Chain 5 1–734（734 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.27 Å
9LXE Structure of compacted DNA-free MCM DH at 3.9 Angstroms resolution Deposited 2025-02-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 5 1–734（734 aa） Chain H 1–734（734 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.96 Å
9LXF Structure of extended DNA-free MCM DH at 3.8 Angstroms resolution Deposited 2025-02-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 5 1–734（734 aa） Chain H 1–734（734 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.86 Å
9VLN Structure of human MCM2-7 single hexamer without MCM3 CTE, state 1 Deposited 2025-06-25	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 5 1–734（734 aa）	Not recorded	MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.42 Å
9VLW Structure of human MCM2-7 single hexamer without MCM3 CTE, state 2 Deposited 2025-06-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 5 1–734（734 aa）	Not recorded	MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.06 Å

26 other PDB entries and 26 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	MCM5_HUMAN
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain 5； PDBConstruct 1–734； UniProt 1–734

DNA replication licensing factor MCM6

Homo sapiens

UniProt Q14566

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 heterocomplex Heteromer Protein × 6 PDB declaration: hexameric（6） Consistent with protein copy count	Chain 6； UniProt 1–821	Not recorded	DNA replication licensing factor MCM2 × 1 （P49736） DNA replication licensing factor MCM3 × 1 （P25205） DNA replication licensing factor MCM4 × 1 （P33991） DNA replication licensing factor MCM5 × 1 （P33992） DNA replication licensing factor MCM7 × 1 （P33993） ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.47 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 9UQ0	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
22VT Structure of human MCM2-7 single hexamer with MCM3-WHD attached to MCM2-CTD, containing Meier-Gorlin Syndrome mutation (MCM3-Q761L) Deposited 2026-01-26	Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 6 1–821（821 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 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
2KLQ The solution structure of CBD of human MCM6 Deposited 2009-07-08	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 708–821（114 aa） Fragment：RESIDUES 708-821	Mutation：C721S	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 6.5；310 K；Ionic strength (raw mmCIF value) 0.5；Pressure ambient NMR sample composition 0.5 mM [U-100% 13C; U-100% 15N] CBD,MES,EDTA,Glycerol,NaCl-1, 90% H2O/10% D2O | 90% H2O/10% D2O NMR sample composition 0.5 mM [U-100% 13C; U-100% 15N] CBD,MES,EDTA,Glycerol,NaCl-2, 100% D2O | 100% D2O NMR sample composition 0.5 mM CBD,MES,EDTA,Glycerol,NaCl-3, 100% D2O | 100% D2O	Resolution not provided
2LE8 The protein complex for DNA replication Deposited 2011-06-14	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 708–821（114 aa） Fragment：UNP residues 708-821	Mutation：C18S	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 6.5；310 K；Ionic strength (raw mmCIF value) 3；Pressure ambient NMR sample composition 25 mM MES-1, 300 mM sodium chloride-2, 1 % glycerol-3, 0.8 mM [U-100% 13C; U-100% 15N] entity_2-4, 1 mM entity_1-5, 90% H2O/10% D2O | 90% H2O/10% D2O NMR sample composition 25 mM [U-100% 15N] MES-6, 300 mM sodium chloride-7, 1 % glycerol-8, 0.8 mM [U-100% 13C; U-100% 15N] entity_1-9, 1.0 mM entity_2-10, 90% H2O/10% D2O | 90% H2O/10% D2O NMR sample composition 25 mM MES-11, 300 mM sodium chloride-12, 1 % glycerol-13, 0.8 mM [U-100% 13C; U-100% 15N] entity_1-14, 1.0 mM entity_2-15, 100% D2O | 100% D2O NMR sample composition 25 mM MES-16, 300 mM sodium chloride-17, 1 % glycerol-18, 0.8 mM [U-100% 13C; U-100% 15N] entity_2-19, 1.0 mM entity_1-20, 100% D2O | 100% D2O	Resolution not provided
6XTX CryoEM structure of human CMG bound to ATPgammaS and DNA Deposited 2020-01-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: dodecameric	Chain 6 1–821（821 aa）	Not recorded	ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 2 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.29 Å
6XTY CryoEM structure of human CMG bound to AND-1 (CMGA) Deposited 2020-01-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 6 1–821（821 aa）	Not recorded	ZN ZINC ION × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.77 Å
7PFO Core human replisome Deposited 2021-08-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 19 PDB declaration: 21-meric	Chain 6 1–821（821 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 3 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 SO4 SULFATE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
7PLO H. sapiens replisome-CUL2/LRR1 complex Deposited 2021-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 24 PDB declaration: 26-meric	Chain 6 1–821（821 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 3 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 SO4 SULFATE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7W1Y Human MCM double hexamer bound to natural DNA duplex (polyAT/polyTA) Deposited 2021-11-21	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 6 1–821（821 aa） Chain E 1–821（821 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 12 ATP ADENOSINE-5'-TRIPHOSPHATE × 8 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；Solutions were made fresh from concentrated to avoid microbial contamination cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.59 Å
7W68 human single hexameric Mcm2-7 complex Deposited 2021-12-01	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain E 1–821（821 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen NITROGEN	Resolution 4.40 Å
8B9D Human replisome bound by Pol Alpha 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 1–821（821 aa）	Not recorded	ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8RWV Human OCCM DNA licensing intermediate Deposited 2024-02-05	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric	Chain 6 1–821（821 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.68 Å
8S09 H. sapiens MCM2-7 double hexamer bound to double stranded DNA Deposited 2024-02-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric	Chain 6 1–821（821 aa） Chain E 1–821（821 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 8 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S0A H. sapiens MCM2-7 hexamer bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric	Chain 6 1–821（821 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 5 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
8S0B H. sapiens MCM bound to double stranded DNA and ORC6 as part of the MCM-ORC complex Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric	Chain 6 1–821（821 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8S0D H. sapiens MCM bound to double stranded DNA and ORC1-6 Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 6 1–821（821 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 8 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8S0E H. sapiens OCCM bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: pentadecameric	Chain 6 1–821（821 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 5 ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8S0F H. sapiens OC1M bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 6 1–821（821 aa）	Not recorded	MG MAGNESIUM ION × 5 ZN ZINC ION × 1 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8W0E Cryo-EM structure of a human MCM2-7 single hexamer on dsDNA Deposited 2024-02-13	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 1–821（821 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8W0F Cryo-EM structure of a human MCM2-7 double hexamer on dsDNA Deposited 2024-02-13	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 1–821（821 aa） Chain E 1–821（821 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 10 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8W0G Cryo-EM structure of a human MCM2-7 dimer Deposited 2024-02-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: 12-meric	Chain 6 1–821（821 aa） Chain E 1–821（821 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 10 ATP ADENOSINE-5'-TRIPHOSPHATE × 8 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8W0I Cryo-EM structure of the human MCM2-7 heterohexamer Deposited 2024-02-13	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 6 1–821（821 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9C6G Mcm double hexamer from human Deposited 2024-06-07	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain 6 1–821（821 aa） Chain B 1–821（821 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.26 Å
9CAQ Cryo-EM structure of a human MCM2-7 double hexamer formed from independently loaded MCM2-7 single hexamers Deposited 2024-06-17	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 6 1–821（821 aa） Chain E 1–821（821 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 9 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
9E2Z Cryo-EM structure of human CMG helicase stalled at G4-containing DNA template Deposited 2024-10-23	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: 13-meric	Chain 6 1–821（821 aa）	Not recorded	ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ZN ZINC ION × 4 K POTASSIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE；30 second wait time after sample application; 30 second blot time, blot force 0	Resolution 2.60 Å
9LXD Structure of DNA-free MCM SH at 3.2 Angstroms resolution Deposited 2025-02-18	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric	Chain 6 1–821（821 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.27 Å
9LXE Structure of compacted DNA-free MCM DH at 3.9 Angstroms resolution Deposited 2025-02-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 6 1–821（821 aa） Chain G 1–821（821 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.96 Å
9LXF Structure of extended DNA-free MCM DH at 3.8 Angstroms resolution Deposited 2025-02-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 6 1–821（821 aa） Chain G 1–821（821 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.86 Å
9VLN Structure of human MCM2-7 single hexamer without MCM3 CTE, state 1 Deposited 2025-06-25	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 6 1–821（821 aa）	Not recorded	MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.42 Å
9VLW Structure of human MCM2-7 single hexamer without MCM3 CTE, state 2 Deposited 2025-06-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 6 1–821（821 aa）	Not recorded	MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.06 Å

29 other PDB entries and 29 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	MCM6_HUMAN
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain 6； PDBConstruct 1–821； UniProt 1–821

DNA replication licensing factor MCM7

Homo sapiens

UniProt P33993

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 heterocomplex Heteromer Protein × 6 PDB declaration: hexameric（6） Consistent with protein copy count	Chain 7； UniProt 1–719	Not recorded	DNA replication licensing factor MCM2 × 1 （P49736） DNA replication licensing factor MCM3 × 1 （P25205） DNA replication licensing factor MCM4 × 1 （P33991） DNA replication licensing factor MCM5 × 1 （P33992） DNA replication licensing factor MCM6 × 1 （Q14566） ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.5 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.47 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 9UQ0	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
22VT Structure of human MCM2-7 single hexamer with MCM3-WHD attached to MCM2-CTD, containing Meier-Gorlin Syndrome mutation (MCM3-Q761L) Deposited 2026-01-26	Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 7 1–719（719 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 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
6XTX CryoEM structure of human CMG bound to ATPgammaS and DNA Deposited 2020-01-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: dodecameric	Chain 7 1–719（719 aa）	Not recorded	ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 2 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.29 Å
6XTY CryoEM structure of human CMG bound to AND-1 (CMGA) Deposited 2020-01-16	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 7 1–719（719 aa）	Not recorded	ZN ZINC ION × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.77 Å
7PFO Core human replisome Deposited 2021-08-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 19 PDB declaration: 21-meric	Chain 7 1–719（719 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 3 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 SO4 SULFATE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
7PLO H. sapiens replisome-CUL2/LRR1 complex Deposited 2021-09-01	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 24 PDB declaration: 26-meric	Chain 7 1–719（719 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 3 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 SO4 SULFATE ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
7W1Y Human MCM double hexamer bound to natural DNA duplex (polyAT/polyTA) Deposited 2021-11-21	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 7 1–719（719 aa） Chain F 1–719（719 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 12 ATP ADENOSINE-5'-TRIPHOSPHATE × 8 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；Solutions were made fresh from concentrated to avoid microbial contamination cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.59 Å
7W68 human single hexameric Mcm2-7 complex Deposited 2021-12-01	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain F 1–719（719 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen NITROGEN	Resolution 4.40 Å
8B9D Human replisome bound by Pol Alpha 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 7 1–719（719 aa）	Not recorded	ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8RWV Human OCCM DNA licensing intermediate Deposited 2024-02-05	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric	Chain 7 1–719（719 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.68 Å
8S09 H. sapiens MCM2-7 double hexamer bound to double stranded DNA Deposited 2024-02-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric	Chain 7 1–719（719 aa） Chain F 1–719（719 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 8 ZN ZINC ION × 10 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8S0A H. sapiens MCM2-7 hexamer bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric	Chain 7 1–719（719 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 5 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
8S0B H. sapiens MCM bound to double stranded DNA and ORC6 as part of the MCM-ORC complex Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric	Chain 7 1–719（719 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 6 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8S0D H. sapiens MCM bound to double stranded DNA and ORC1-6 Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 7 1–719（719 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 8 ZN ZINC ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8S0E H. sapiens OCCM bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: pentadecameric	Chain 7 1–719（719 aa）	Not recorded	AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5 MG MAGNESIUM ION × 5 ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8S0F H. sapiens OC1M bound to double stranded DNA Deposited 2024-02-13	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 7 1–719（719 aa）	Not recorded	MG MAGNESIUM ION × 5 ZN ZINC ION × 1 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.10 Å
8W0E Cryo-EM structure of a human MCM2-7 single hexamer on dsDNA Deposited 2024-02-13	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 1–719（719 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
8W0F Cryo-EM structure of a human MCM2-7 double hexamer on dsDNA Deposited 2024-02-13	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 1–719（719 aa） Chain F 1–719（719 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 10 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.80 Å
8W0G Cryo-EM structure of a human MCM2-7 dimer Deposited 2024-02-13	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: 12-meric	Chain 7 1–719（719 aa） Chain F 1–719（719 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 10 ATP ADENOSINE-5'-TRIPHOSPHATE × 8 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.80 Å
8W0I Cryo-EM structure of the human MCM2-7 heterohexamer Deposited 2024-02-13	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 7 1–719（719 aa）	Not recorded	ZN ZINC ION × 5 MG MAGNESIUM ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
9C6G Mcm double hexamer from human Deposited 2024-06-07	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain 7 1–719（719 aa） Chain C 1–719（719 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.26 Å
9CAQ Cryo-EM structure of a human MCM2-7 double hexamer formed from independently loaded MCM2-7 single hexamers Deposited 2024-06-17	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric	Chain 7 1–719（719 aa） Chain F 1–719（719 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 9 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
9E2Z Cryo-EM structure of human CMG helicase stalled at G4-containing DNA template Deposited 2024-10-23	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: 13-meric	Chain 7 1–719（719 aa）	Not recorded	ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ZN ZINC ION × 4 K POTASSIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE；30 second wait time after sample application; 30 second blot time, blot force 0	Resolution 2.60 Å
9LXD Structure of DNA-free MCM SH at 3.2 Angstroms resolution Deposited 2025-02-18	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric	Chain 7 1–719（719 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.27 Å
9LXE Structure of compacted DNA-free MCM DH at 3.9 Angstroms resolution Deposited 2025-02-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 7 1–719（719 aa） Chain A 1–719（719 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.96 Å
9LXF Structure of extended DNA-free MCM DH at 3.8 Angstroms resolution Deposited 2025-02-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric	Chain 7 1–719（719 aa） Chain A 1–719（719 aa）	Not recorded	ATP ADENOSINE-5'-TRIPHOSPHATE × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.86 Å
9VLN Structure of human MCM2-7 single hexamer without MCM3 CTE, state 1 Deposited 2025-06-25	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 7 1–719（719 aa）	Not recorded	MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.42 Å
9VLW Structure of human MCM2-7 single hexamer without MCM3 CTE, state 2 Deposited 2025-06-26	Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric	Chain 7 1–719（719 aa）	Not recorded	MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ZN ZINC ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.06 Å

27 other PDB entries and 27 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	MCM7_HUMAN
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain 7； PDBConstruct 1–719； UniProt 1–719

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.