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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：Q91W12 New Search
2PDB entries
3Biological assembly
3chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification 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
1AY1 ANTI TAQ FAB TP7 Deposited 1997-11-13 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain L 5–212（208 aa） Fragment：FAB
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 9；PROTEIN WAS CRYSTALLIZED FROM 16% PEG3350, 0.4% BETA OCTYL GLUCOSIDE, 100MM TRIS, PH 9.0
Resolution 2.20 Å R-free 0.288
1HQ4 STRUCTURE OF NATIVE CATALYTIC ANTIBODY HA5-19A4 Deposited 2000-12-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 24–235（212 aa） Fragment：VARIABLE REGIONS OF FAB LIGHT AND HEAVY CHAINS
Not recorded CD CADMIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.2；298 K；PEG 6000, cadmium chloride, hepes, ph 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.70 Å R-free 0.265
1HQ4 STRUCTURE OF NATIVE CATALYTIC ANTIBODY HA5-19A4 Deposited 2000-12-14 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 24–235（212 aa） Fragment：VARIABLE REGIONS OF FAB LIGHT AND HEAVY CHAINS
Not recorded CD CADMIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.2；298 K；PEG 6000, cadmium chloride, hepes, ph 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.70 Å R-free 0.265

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.