← Back to search

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：P0A0L5 New Search
18PDB entries
25Biological assembly
29chain/assembly records
Main Difference Dimensions in This Set
Different mutation/modification 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
1JCK T-CELL RECEPTOR BETA CHAIN COMPLEXED WITH SEC3 SUPERANTIGEN Deposited 1996-10-22 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 28–266（239 aa）
Chain D 28–266（239 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；SOLUTION OF 20% PEG1000, 0.1M MGCL2, 0.025% AGAROSE, 0.1M TRIS-HCL PH 6.5 MIXED WITH AN EQUAL VOLUME OF PROTEIN SOLUTION (10MG/ML IN 20MM TRIS-HCL, 25MM NACL, PH 7.5). HANGING DROP METHOD., vapor diffusion - hanging drop
Resolution 3.50 Å R-free 0.328
1JWM Crystal Structure of the Complex of the MHC Class II Molecule HLA-DR1(HA peptide 306-318) with the Superantigen SEC3 Deposited 2001-09-04 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain D 28–266（239 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；298 K；PEG 4000, Sodium Acetate, Ethylene Glycol, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.70 Å R-free 0.228
1JWS Crystal Structure of the Complex of the MHC Class II Molecule HLA-DR1 (HA peptide 306-318) with the Superantigen SEC3 Variant 3B1 Deposited 2001-09-05 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain D 28–266（239 aa）
Mutation：YES No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；298 K；PEG 4000, Sodium Acetate, Ethylene Glycol, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.60 Å R-free 0.232
1JWU Crystal Structure of the Complex of the MHC Class II Molecule HLA-DR1 (HA peptide 306-318) with the superantigen SEC3 Variant 3B2 Deposited 2001-09-05 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain D 28–266（239 aa）
Mutation：YES No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；298 K；PEG 4000, Sodium Acetate, Ethylene Glycol, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.30 Å R-free 0.237
1KLG Crystal structure of HLA-DR1/TPI(23-37, Thr28-->Ile mutant) complexed with staphylococcal enterotoxin C3 variant 3B2 (SEC3-3B2) Deposited 2001-12-11 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain D 28–266（239 aa） Fragment：residues 29-266
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.2；298 K；PEG 4000, sodium acetate, ethylene glycol, pH 5.2, VAPOR DIFFUSION, HANGING DROP at 298K
Resolution 2.40 Å R-free 0.246
1KLU Crystal structure of HLA-DR1/TPI(23-37) complexed with staphylococcal enterotoxin C3 variant 3B2 (SEC3-3B2) Deposited 2001-12-12 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain D 28–266（239 aa） Fragment：residues 29-266
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.2；298 K；PEG 4000, sodium acetate, ethylene glycol, pH 5.2, VAPOR DIFFUSION, HANGING DROP at 298K, VAPOR DIFFUSION, HANGING DROP
Resolution 1.93 Å R-free 0.220
1SJE HLA-DR1 complexed with a 16 residue HIV capsid peptide bound in a hairpin conformation Deposited 2004-03-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric（12） Consistent with protein count
Chain D 28–266（239 aa） Fragment：SEC3 variant 3B2
Mutation：K43S,L45F,A46K,H47W No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.4；277 K；PEG-MME 5000, Ethylene Glycol, pH 5.4, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.45 Å R-free 0.223
1SJH HLA-DR1 complexed with a 13 residue HIV capsid peptide Deposited 2004-03-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain D 28–266（239 aa） Fragment：SEC3 variant 3B2
Mutation：K43S,L45F,A46K,H47W No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.2；277 K；PEG 4000, Ethylene glycol, pH 5.2, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.25 Å R-free 0.245
1T5X HLA-DR1 in complex with a synthetic peptide (AAYSDQATPLLLSPR) and the superantigen SEC3-3B2 Deposited 2004-05-05 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain D 28–266（239 aa） Fragment：SEC3 variant 3B2
Mutation：K43S, L45F, A46K, H47W No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.4；277 K；PEG 4000, Ethylene Glycol, pH 5.4, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.50 Å R-free 0.241
2AQ1 Crystal structure of T-cell receptor V beta domain variant complexed with superantigen SEC3 mutant Deposited 2005-08-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 28–266（239 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；20% PEG 3350, 0.2M tri-ammonium citrate, 0.3% dioxane, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.10 Å R-free 0.243
2AQ1 Crystal structure of T-cell receptor V beta domain variant complexed with superantigen SEC3 mutant Deposited 2005-08-17 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 28–266（239 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；20% PEG 3350, 0.2M tri-ammonium citrate, 0.3% dioxane, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.10 Å R-free 0.243
2AQ1 Crystal structure of T-cell receptor V beta domain variant complexed with superantigen SEC3 mutant Deposited 2005-08-17 Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain F 28–266（239 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；20% PEG 3350, 0.2M tri-ammonium citrate, 0.3% dioxane, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.10 Å R-free 0.243
2AQ1 Crystal structure of T-cell receptor V beta domain variant complexed with superantigen SEC3 mutant Deposited 2005-08-17 Assembly 4 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain H 28–266（239 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；20% PEG 3350, 0.2M tri-ammonium citrate, 0.3% dioxane, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.10 Å R-free 0.243
2AQ2 Crystal structure of T-cell receptor V beta domain variant complexed with superantigen SEC3 mutant Deposited 2005-08-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 28–266（239 aa）
Not recorded ZN ZINC ION × 1 NA SODIUM ION × 3 SO4 SULFATE ION × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；2.0 M ammonium sulfate, 0.1 M Tris, 0.3 % 1,6-diaminohexane, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 1.80 Å R-free 0.213
2AQ2 Crystal structure of T-cell receptor V beta domain variant complexed with superantigen SEC3 mutant Deposited 2005-08-17 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 28–266（239 aa）
Not recorded ZN ZINC ION × 1 NA SODIUM ION × 3 SO4 SULFATE ION × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；2.0 M ammonium sulfate, 0.1 M Tris, 0.3 % 1,6-diaminohexane, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 1.80 Å R-free 0.213
2AQ3 Crystal structure of T-cell receptor V beta domain variant complexed with superantigen SEC3 Deposited 2005-08-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain B 28–266（239 aa）
Chain D 28–266（239 aa）
Chain F 28–266（239 aa）
Chain H 28–266（239 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；20% PEG 3350, 0.2M tri-ammonium citrate, 0.3% dioxane, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.30 Å R-free 0.271
3BVG Manipulating the coupled folding and binding process drives affinity maturation in a protein-protein complex Deposited 2008-01-07 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 28–266（239 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；298 K；0.1M Tris-Cl, pH 8.5, 2.4 M ammonium sulfate, 2.25% polyethylene glycol (PEG) 400 and 2.25% Tween 20, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.00 Å R-free 0.276
3BVM Manipulating the coupled folding and binding process drives affinity maturation in a protein-protein complex Deposited 2008-01-07 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 28–266（239 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；298 K；containing 0.1M Tris-Cl, pH 8.5, 2.4 M ammonium sulfate, 2.25% polyethylene glycol (PEG) 400 and 2.25% Tween 20, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.00 Å R-free 0.274
3BVZ Manipulating the coupled folding and binding process drives affinity maturation in a protein-protein complex Deposited 2008-01-07 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 28–266（239 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；298 K；0.1M Tris-Cl, pH 8.5, 2.4 M ammonium sulfate, 2.25% polyethylene glycol (PEG) 400 and 2.25% Tween 20, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.30 Å R-free 0.277
3BYT A complex between a variant of staphylococcal enterotoxin C3 and the variable domain of the murine T cell receptor beta chain 8.2 Deposited 2008-01-16 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 28–266（239 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；20% PEG 3350, 0.2 M tri-ammonium citrate pH 7.0, 0.3 % dioxane, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.30 Å R-free 0.278
3BYT A complex between a variant of staphylococcal enterotoxin C3 and the variable domain of the murine T cell receptor beta chain 8.2 Deposited 2008-01-16 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 28–266（239 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；20% PEG 3350, 0.2 M tri-ammonium citrate pH 7.0, 0.3 % dioxane, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.30 Å R-free 0.278
3BYT A complex between a variant of staphylococcal enterotoxin C3 and the variable domain of the murine T cell receptor beta chain 8.2 Deposited 2008-01-16 Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain F 28–266（239 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；20% PEG 3350, 0.2 M tri-ammonium citrate pH 7.0, 0.3 % dioxane, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.30 Å R-free 0.278
3BYT A complex between a variant of staphylococcal enterotoxin C3 and the variable domain of the murine T cell receptor beta chain 8.2 Deposited 2008-01-16 Assembly 4 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain H 28–266（239 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；20% PEG 3350, 0.2 M tri-ammonium citrate pH 7.0, 0.3 % dioxane, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.30 Å R-free 0.278
3BYY Manipulating the coupled folding and binding process drives affinity maturation in a protein-protein complex Deposited 2008-01-16 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 28–266（239 aa）
Not recorded SO4 SULFATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；2.0 M ammonium sulfate, 0.1 M Tris-Cl pH 7.0, 0.3 % 1,6-diaminohexane, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.20 Å R-free 0.233
3BZD Manipulating the coupled folding and binding process drives affinity maturation in a protein-protein complex Deposited 2008-01-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 28–266（239 aa）
Not recorded SO4 SULFATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；2.0 M ammonium sulfate, 0.1 M Tris-Cl pH 7.0, 0.3 % 1,6-diaminohexane, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.30 Å R-free 0.258

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.