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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：Q16633 New Search
1PDB entries
2Biological assembly
2chain/assembly records
Main Difference Dimensions in This Set
No difference found in parsed fields

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
1CQT CRYSTAL STRUCTURE OF A TERNARY COMPLEX CONTAINING AN OCA-B PEPTIDE, THE OCT-1 POU DOMAIN, AND AN OCTAMER ELEMENT Deposited 1999-08-11 Assembly 1 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain I 1–44（44 aa） Fragment：OCA-B PEPTIDE, RESIDUES 1-44
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；pH 7.50, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.20 Å R-free 0.326
1CQT CRYSTAL STRUCTURE OF A TERNARY COMPLEX CONTAINING AN OCA-B PEPTIDE, THE OCT-1 POU DOMAIN, AND AN OCTAMER ELEMENT Deposited 1999-08-11 Assembly 2 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain J 1–44（44 aa） Fragment：OCA-B PEPTIDE, RESIDUES 1-44
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；pH 7.50, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.20 Å R-free 0.326

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.