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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：Q9HBD4 New Search
3PDB entries
3Biological assembly
3chain/assembly records
Main Difference Dimensions in This Set
Different assembly state 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
21VV Cryo-EM structure of ncBAF bound to the nucleosome Deposited 2025-12-31 Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric（14） Consistent with all polymers
Chain I 1–1679（1679 aa）
Not recorded BEF BERYLLIUM TRIFLUORIDE ION × 1 MG MAGNESIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8；20 mM HEPES pH 8.0, 100 mM KCl, 2 mM MgCl2, 2 mM DTT, 0.5 mM ADP, 8 mM NaF, 1 mM BeSO4.
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.70 Å
21WA Cryo-EM structure of the ATPase domain of SMARCA4 bound to a nucleosome Deposited 2025-12-31 Assembly 1 Protein–DNA Heteromer；Protein × 9 PDB declaration: 11-meric（11） Consistent with all polymers
Chain I 1–1679（1679 aa）
Not recorded MG MAGNESIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8；20 mM HEPES pH 8.0, 100 mM KCl, 2 mM MgCl2, 2 mM DTT, 0.5 mM ADP, 8 mM NaF, 1 mM BeSO4.
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
21WC Cryo-EM structure of the ATPase domain of SMARCA4 and the finger helix of BCL7A bound to a nucleosome Deposited 2025-12-31 Assembly 1 Protein–DNA Heteromer；Protein × 10 PDB declaration: dodecameric（12） Consistent with all polymers
Chain I 1–1679（1679 aa）
Not recorded MG MAGNESIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8；20 mM HEPES pH 8.0, 100 mM KCl, 2 mM MgCl2, 2 mM DTT, 0.5 mM ADP, 8 mM NaF, 1 mM BeSO4.
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 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.