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Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：P54790 New Search
20PDB entries
20Biological assembly
20chain/assembly records
Main Difference Dimensions in This Set
Different assembly state Different ligand/ion Different experimental conditions Different structure-quality metrics

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method Experimental Conditions Structure Quality
5V8F Structural basis of MCM2-7 replicative helicase loading by ORC-Cdc6 and Cdt1 Deposited 2017-03-21 Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric（16） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
5ZR1 Saccharomyces Cerevisiae Origin Recognition Complex Bound to a 72-bp Origin DNA containing ACS and B1 element Deposited 2018-04-21 Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric（8） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 3 MG MAGNESIUM ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
6RQC Cryo-EM structure of an MCM loading intermediate Deposited 2019-05-15 Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric（14） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；10 second incubation, 3.5 seconds single side blotting.
Resolution 4.40 Å
6WGC Atomic model of semi-attached mutant OCCM-DNA complex (ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) Deposited 2020-04-05 Assembly 1 Protein–DNA Heteromer；Protein × 9 PDB declaration: undecameric（11） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.30 Å
6WGG Atomic model of pre-insertion mutant OCCM-DNA complex(ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) Deposited 2020-04-05 Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric（16） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 8.10 Å
6WGI Atomic model of the mutant OCCM (ORC-Cdc6-Cdt1-Mcm2-7 with Mcm6 WHD truncation) loaded on DNA at 10.5 A resolution Deposited 2020-04-05 Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: hexadecameric（16） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 10.00 Å
7MCA Structure of the S. cerevisiae origin recognition complex bound to the replication initiator Cdc6 and the ARS1 origin DNA. Deposited 2021-04-01 Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric（9） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded MG MAGNESIUM ION × 4 AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
7TJF S. cerevisiae ORC bound to 84 bp ARS1 DNA Deposited 2022-01-16 Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric（8） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.60 Å
7TJH S. cerevisiae ORC bound to 84 bp ARS1 DNA and Cdc6 (state 1) with flexible Orc6 N-terminal domain Deposited 2022-01-16 Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric（9） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.50 Å
7TJI S. cerevisiae ORC bound to 84 bp ARS1 DNA and Cdc6 (state 2) with flexible Orc6 N-terminal domain Deposited 2022-01-16 Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric（9） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
7TJJ S. cerevisiae ORC bound to 84 bp ARS1 DNA and Cdc6 (state 1) with docked Orc6 N-terminal domain Deposited 2022-01-16 Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric（9） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
7TJK S. cerevisiae ORC bound to 84 bp ARS1 DNA and Cdc6 (state 2) with docked Orc6 N-terminal domain Deposited 2022-01-16 Assembly 1 Protein–DNA Heteromer；Protein × 7 PDB declaration: nonameric（9） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
8ZP4 Cryo-EM structure of origin recognition complex (Orc1 to 5) with ARS1 DNA bound Deposited 2024-05-29 Assembly 1 Protein–DNA Heteromer；Protein × 5 PDB declaration: heptameric（7） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded 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 3.33 Å
8ZP5 Cryo-EM structure of origin recognition complex (Orc5 basic patch mutations) with ARS1 DNA bound Deposited 2024-05-29 Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric（8） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded 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 2.98 Å
8ZPK Cryo-EM structure of origin recognition complex (Orc6 with residues 1 to 270 deleted) with ARS1 DNA bound Deposited 2024-05-30 Assembly 1 Protein–DNA Heteromer；Protein × 6 PDB declaration: octameric（8） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded 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 3.21 Å
9BCX Cryo-EM structure of the S. cerevisiae ORC-Cdc6-Mcm2-7-DNA complex with a fully closed Mcm2-Mcm5 DNA entry gate Deposited 2024-04-10 Assembly 1 Protein–DNA Heteromer；Protein × 14 PDB declaration: 16-meric（16） Consistent with all polymers
Chain D 1–616（616 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.10 Å
9GJP OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm5: Conformer 2 Deposited 2024-08-22 Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric（15） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9GJW OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm2 Deposited 2024-08-22 Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric（15） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 6 ZN ZINC ION × 4 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
9GM5 OCCM maturation intermediate stalled with an Arginine Finger mutation in Mcm5: Conformer 1 Deposited 2024-08-28 Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric（15） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
9I3I Cryo-EM structure of the MCM-ORC (MO) complex featuring an ORC2 regulatory domain involved in cell cycle regulation of MCM-DH loading for DNA replication. Deposited 2025-01-23 Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric（14） Consistent with all polymers
Chain C 1–616（616 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 4 ZN ZINC ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；10 second incubation, 3.5 seconds single side blotting.
Resolution 4.40 Å

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.