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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：Q9TQH5 New Search
6PDB entries
11Biological assembly
11chain/assembly records
Main Difference Dimensions in This Set
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
1S8D Structural basis for degenerate recognition of HIV peptide variants by cytotoxic lymphocyte, variant SL9-3A Deposited 2004-02-02 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 25–299（275 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 6.5；293 K；15% polyethylene glycol 6000, 25mM MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 6.50
Resolution 2.20 Å R-free 0.252
2GIT Human Class I MHC HLA-A2 in complex with the modified HTLV-1 TAX (Y5K-4-[3-Indolyl]-butyric acid) peptide Deposited 2006-03-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 25–299（275 aa） Fragment：Human class I major histocompatibility complex heavy chain
Not recorded GOL GLYCEROL × 2 NA SODIUM ION × 1 FMT FORMIC ACID × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；PEG3350 24%, MES 0.025M, HCOOH 0.1M, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 1.70 Å R-free 0.219
2GIT Human Class I MHC HLA-A2 in complex with the modified HTLV-1 TAX (Y5K-4-[3-Indolyl]-butyric acid) peptide Deposited 2006-03-29 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain D 25–299（275 aa） Fragment：Human class I major histocompatibility complex heavy chain
Not recorded GOL GLYCEROL × 4 FMT FORMIC ACID × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；PEG3350 24%, MES 0.025M, HCOOH 0.1M, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 1.70 Å R-free 0.219
2GT9 Human Class I MHC HLA-A2 in complex with the decameric Melan-A/MART-1(26-35) peptide Deposited 2006-04-27 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 25–299（275 aa） Fragment：Human class I major histocompatibility complex, heavy chain (Residues 25-299)
Not recorded GOL GLYCEROL × 2 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；PEG3350 24%, MES 0.025M, NaCl 0.1M, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 1.75 Å R-free 0.213
2GT9 Human Class I MHC HLA-A2 in complex with the decameric Melan-A/MART-1(26-35) peptide Deposited 2006-04-27 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain D 25–299（275 aa） Fragment：Human class I major histocompatibility complex, heavy chain (Residues 25-299)
Not recorded GOL GLYCEROL × 3 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；PEG3350 24%, MES 0.025M, NaCl 0.1M, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 1.75 Å R-free 0.213
2GTW Human Class I MHC HLA-A2 in complex with the nonameric Melan-A/MART-1(27-35) peptide having A27L substitution Deposited 2006-04-28 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 25–299（275 aa） Fragment：heavy chain
Not recorded GOL GLYCEROL × 3 FMT FORMIC ACID × 3 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；PEG 3350 24%, MES 0.025M, HCOOK 0.1M, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 1.55 Å R-free 0.218
2GTW Human Class I MHC HLA-A2 in complex with the nonameric Melan-A/MART-1(27-35) peptide having A27L substitution Deposited 2006-04-28 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain D 25–299（275 aa） Fragment：heavy chain
Not recorded GOL GLYCEROL × 2 FMT FORMIC ACID × 1 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；PEG 3350 24%, MES 0.025M, HCOOK 0.1M, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 1.55 Å R-free 0.218
2GTZ Human Class I MHC HLA-A2 in complex with the nonameric Melan-A/MART-1(27-35) peptide having A28L substitution Deposited 2006-04-28 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 25–299（275 aa） Fragment：heavy chain
Not recorded GOL GLYCEROL × 4 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；PEG 3350 24%, MES 0.025M, NH4Cl 0.1M, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 1.70 Å R-free 0.217
2GTZ Human Class I MHC HLA-A2 in complex with the nonameric Melan-A/MART-1(27-35) peptide having A28L substitution Deposited 2006-04-28 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain D 25–299（275 aa） Fragment：heavy chain
Not recorded GOL GLYCEROL × 2 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；PEG 3350 24%, MES 0.025M, NH4Cl 0.1M, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 1.70 Å R-free 0.217
2GUO Human Class I MHC HLA-A2 in complex with the native nonameric Melan-A/MART-1(27-35) peptide Deposited 2006-05-01 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 25–299（275 aa） Fragment：Human class I major histocompatibility complex, heavy chain (Residues 25-299)
Not recorded GOL GLYCEROL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；PEG3350 24%, MES 0.025M, NaCl 0.1M, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 1.90 Å R-free 0.244
2GUO Human Class I MHC HLA-A2 in complex with the native nonameric Melan-A/MART-1(27-35) peptide Deposited 2006-05-01 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain D 25–299（275 aa） Fragment：Human class I major histocompatibility complex, heavy chain (Residues 25-299)
Not recorded GOL GLYCEROL × 2 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；PEG3350 24%, MES 0.025M, NaCl 0.1M, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 1.90 Å R-free 0.244

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.