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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：O15315 New Search
5PDB entries
5Biological assembly
5chain/assembly records
Main Difference Dimensions in This Set
Different construct 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
8FAZ Cryo-EM structure of the human BCDX2 complex Deposited 2022-11-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 1–350（350 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.30 Å
8GBJ Cryo-EM structure of a human BCDX2/ssDNA complex Deposited 2023-02-26 Assembly 1 Protein–DNA Heteromer；Protein × 4 PDB declaration: pentameric（5） Consistent with all polymers
Chain B 1–350（350 aa）
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.11 Å
8OUY Human RAD51B-RAD51C-RAD51D-XRCC2 (BCDX2) complex, 3.4 A resolution Deposited 2023-04-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–350（350 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 3 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；25 mM HEPES pH 7.5, 100 mM NaCl, 2.5 mM MgCl2, 0.5 mM ADP.BeFx (0.5 mM ADP, 0.5 mM BeSO4, 10 mM NaF), 0.25 mM TCEP, 0.0005% Tween20
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
8OUZ Human RAD51B-RAD51C-RAD51D-XRCC2 (BCDX2) complex, 2.2 A resolution Deposited 2023-04-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–350（350 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 3 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；25 mM HEPES pH 7.5, 100 mM NaCl, 2.5 mM MgCl2, 0.5 mM ADP.AlFx (0.5 mM ADP, 0.5 mM AlCl3, 10 mM NaF), 0.25 mM TCEP, 0.00075% Tween20, 0.075 mM CHAPSO
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.20 Å
9Q2A BCDX2-CX3-RAD51-RAD51-ssDNA supercomplex Deposited 2025-08-14 Assembly 1 Protein–DNA Heteromer；Protein × 8 PDB declaration: nonameric（9） Consistent with all polymers
Chain B 1–384（384 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 6 ATP ADENOSINE-5'-TRIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.2
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.67 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.