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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：Q9Y620 New Search
4PDB entries
4Biological assembly
24chain/assembly records
Main Difference Dimensions in This Set
Different assembly state Different ligand/ion 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
9SRZ RAD51-ssDNA filament in complex with calcium and ATP bound by the RAD54B N-terminus Deposited 2025-09-25 Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 13-meric（13） Consistent with all polymers
Chain A 1–285（285 aa）
Chain B 1–285（285 aa）
Chain C 1–285（285 aa）
Chain D 1–285（285 aa）
Chain E 1–285（285 aa）
Chain F 1–285（285 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) ATP ADENOSINE-5'-TRIPHOSPHATE × 6 CA CALCIUM ION × 12 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.61 Å
9SSL RAD51-ssDNA filament in complex with magnesium and ATP bound by the RAD54B N-terminus (peptide) Deposited 2025-09-26 Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 13-meric（13） Consistent with all polymers
Chain G 1–285（285 aa）
Chain H 1–285（285 aa）
Chain I 1–285（285 aa）
Chain J 1–285（285 aa）
Chain K 1–285（285 aa）
Chain L 1–285（285 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) K POTASSIUM ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 7 MG MAGNESIUM ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
9TRL RAD51-ssDNA filament in complex with magnesium and ATP bound by the RAD54B N-terminus (beta-barrel) Deposited 2025-12-25 Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: 12-meric（12） Consistent with all polymers
Chain H 1–285（285 aa）
Chain I 1–285（285 aa）
Chain J 1–285（285 aa）
Chain K 1–285（285 aa）
Chain O 1–285（285 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) K POTASSIUM ION × 5 ATP ADENOSINE-5'-TRIPHOSPHATE × 7 MG MAGNESIUM ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
9TRM RAD51-dsDNA filament in complex with calcium and ATP bound by the RAD54B N-terminus Deposited 2025-12-25 Assembly 1 Protein–DNA Heteromer；Protein × 13 PDB declaration: 15-meric（15） Consistent with all polymers
Chain A 1–285（285 aa）
Chain B 1–285（285 aa）
Chain C 1–285（285 aa）
Chain D 1–285（285 aa）
Chain E 1–285（285 aa）
Chain F 1–285（285 aa）
Chain O 1–285（285 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) ATP ADENOSINE-5'-TRIPHOSPHATE × 6 CA CALCIUM ION × 12 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.40 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.