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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：A3F718 New Search
18PDB entries
21Biological assembly
21chain/assembly records
Main Difference Dimensions in This Set
Different construct 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
3DTX Crystal structure of HLA-B*2705 complexed with the double citrullinated vasoactive intestinal peptide type 1 receptor (VIPR) peptide (residues 400-408) Deposited 2008-07-16 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 11–286（276 aa） Fragment：EXTRACELLUAR DOMAIN, RESIDUES 25-300
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；291 K；0.1M TRIS HCL, 25% PEG 8000,, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Resolution 2.10 Å R-free 0.262
3DTX Crystal structure of HLA-B*2705 complexed with the double citrullinated vasoactive intestinal peptide type 1 receptor (VIPR) peptide (residues 400-408) Deposited 2008-07-16 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 11–286（276 aa） Fragment：EXTRACELLUAR DOMAIN, RESIDUES 25-300
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；291 K；0.1M TRIS HCL, 25% PEG 8000,, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Resolution 2.10 Å R-free 0.262
6Y26 Crystal structure of HLA-B2705 complexed with the nona-peptide mA Deposited 2020-02-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 11–286（276 aa）
Not recorded GOL GLYCEROL × 4 CL CHLORIDE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；20% (w/v) PEG8000, 150 mM NaCl and 100 mM Tris-HCl, pH 7.0
Resolution 1.20 Å R-free 0.174
6Y28 Crystal structure of HLA-B2705 complexed with the nona-peptide mE Deposited 2020-02-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 11–286（276 aa）
Not recorded GOL GLYCEROL × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；291 K；20% (w/v) PEG8000, 150 mM NaCl and 100 mM Tris-HCl, pH 7.0
Resolution 1.69 Å R-free 0.236
6Y2A Crystal structure of HLA-B2705 complexed with the nona-peptide mQ Deposited 2020-02-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 11–286（276 aa）
Not recorded GOL GLYCEROL × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；291 K；20% (w/v) PEG8000, 150 mM NaCl and 100 mM Tris-HCl, pH 7.0
Resolution 1.25 Å R-free 0.155
7CIQ Phosphorylation modification of MHC I polypeptide Deposited 2020-07-08 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 11–286（276 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；277.15 K；0.2MSodiumchloride,0.1MBis-Tris(pH6.5),25%(w/v)PEG 3,350
Resolution 1.59 Å R-free 0.209
7CIR Peptide phosphorylation modification of MHC class I molecules Deposited 2020-07-08 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 11–286（276 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；291.15 K；0.1M TRIS-HCl (PH7.9) 17.5%(w/v)PEG8000
Resolution 1.81 Å R-free 0.208
7CIS Peptide modification of MHC class I molecules Deposited 2020-07-08 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 11–286（276 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；291.15 K；0.1 M TRIS-HCl (pH 7.1), 20.5% (w/v) PEG 8,000
Resolution 2.10 Å R-free 0.222
7DYN Phosphorylation of MHC I peptide Deposited 2021-01-22 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 11–286（276 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；291.15 K；0.2 M Ammonium acetate, 0.1 M HEPES (pH 7.5), 25% (w/v) PEG 3,350
Resolution 2.00 Å R-free 0.208
7N2N TCR-antigen complex AS4.2-PRPF3-HLA*B27 Deposited 2021-05-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 11–288（278 aa）
Not recorded GOL GLYCEROL × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；20% PEG3350 with 0.2M Potassium phosphate monobasic
Resolution 2.60 Å R-free 0.291
7N2O AS4.2-YEIH-HLA*B27 Deposited 2021-05-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 11–288（278 aa）
Mutation：C67S GOL GLYCEROL × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；20% PEG3350 with 0.2M Ammonium acetate
Resolution 2.30 Å R-free 0.267
7N2P AS4.3-RNASEH2b-HLA*B27 Deposited 2021-05-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 11–288（278 aa）
Mutation：C67S GOL GLYCEROL × 6 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；20% PEG3350 with 0.2M Magnesium formate dihydrate
Resolution 2.50 Å R-free 0.288
7N2Q AS4.3-YEIH-HLA*B27 Deposited 2021-05-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 11–288（278 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；25% PEG3350 with 0.2M Ammonium sulfate and 0.1M BIS-TRIS pH 6.5
Resolution 2.70 Å R-free 0.264
7N2Q AS4.3-YEIH-HLA*B27 Deposited 2021-05-29 Assembly 2 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain H 11–288（278 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 SO4 SULFATE ION × 3 GOL GLYCEROL × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；25% PEG3350 with 0.2M Ammonium sulfate and 0.1M BIS-TRIS pH 6.5
Resolution 2.70 Å R-free 0.264
7N2R AS4.3-PRPF3-HLA*B27 Deposited 2021-05-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 11–288（278 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 ASP ASPARTIC ACID × 1 SO4 SULFATE ION × 3 EDO 1,2-ETHANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；25% PEG3350 with 0.2M Ammonium sulfate and 0.1M BIS-TRIS pH 6.5
Resolution 2.28 Å R-free 0.288
7N2S AS3.1-PRPF3-HLA*B27 Deposited 2021-05-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 11–288（278 aa）
Not recorded GOL GLYCEROL × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；25% PEG3350 with 0.2M Ammonium tartrate dibasic dihydrate
Resolution 2.37 Å R-free 0.311
7T0L HLA-B*27:05 in complex with the pan-HLA-Ia monoclonal antibody W6/32 Deposited 2021-11-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 11–286（276 aa）
Mutation：C67S No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；298 K；PEG 5000 MME, 0.1 M Bis-Tris pH 6.0
Resolution 3.00 Å R-free 0.252
7T0L HLA-B*27:05 in complex with the pan-HLA-Ia monoclonal antibody W6/32 Deposited 2021-11-29 Assembly 2 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain D 11–286（276 aa）
Mutation：C67S No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；298 K；PEG 5000 MME, 0.1 M Bis-Tris pH 6.0
Resolution 3.00 Å R-free 0.252
8CX4 TCR-antigen complex AS8.4-YEIH-HLA*B27 Deposited 2022-05-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 11–288（278 aa）
Not recorded GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；293 K；25% PEG3350 and 0.1M HEPES pH 7.5
Resolution 2.20 Å R-free 0.264
9PBG TCR 19.2 complex with YEIH-HLA B*27:05 Deposited 2025-06-26 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 11–288（278 aa）
Not recorded GOL GLYCEROL × 9 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；295 K；0.2 M sodium malonate pH 6.4 17% PEG 3350
Resolution 2.00 Å R-free 0.258
9PBH AS19.2 TCR complex with PSG5-HLA B*27:05 Deposited 2025-06-26 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 11–288（278 aa）
Not recorded GOL GLYCEROL × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；295 K；0.2 M sodium formate; 20% PEG 3350
Resolution 2.13 Å R-free 0.246

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.