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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：P04582 New Search
7PDB entries
9Biological assembly
9chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental method 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
1DDH MHC CLASS I H-2DD HEAVY CHAIN COMPLEXED WITH BETA-2 MICROGLOBULIN AND AN IMMUNODOMINANT PEPTIDE P18-I10 FROM THE HUMAN IMMUNODEFICIENCY VIRUS ENVELOPE GLYCOPROTEIN 120 Deposited 1998-06-22 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain P 311–320（10 aa） Fragment：RESIDUES 308-322
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 6.5；pH 6.5
Resolution 3.10 Å R-free 0.337
1HHG THE ANTIGENIC IDENTITY OF PEPTIDE(SLASH)MHC COMPLEXES: A COMPARISON OF THE CONFORMATION OF FIVE PEPTIDES PRESENTED BY HLA-A2 Deposited 1993-06-30 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain C 192–200（9 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.60 Å
1HHG THE ANTIGENIC IDENTITY OF PEPTIDE(SLASH)MHC COMPLEXES: A COMPARISON OF THE CONFORMATION OF FIVE PEPTIDES PRESENTED BY HLA-A2 Deposited 1993-06-30 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain F 192–200（9 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.60 Å
1QO3 Complex between NK cell receptor Ly49A and its MHC class I ligand H-2Dd Deposited 1999-11-01 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain P 311–320（10 aa） Fragment：RESIDUES 318-327
Mutation：YES EDO 1,2-ETHANEDIOL × 3 X-RAY DIFFRACTION
X-ray crystallization conditions pH 6.5；pH 6.50
Resolution 2.30 Å R-free 0.238
1QO3 Complex between NK cell receptor Ly49A and its MHC class I ligand H-2Dd Deposited 1999-11-01 Assembly 2 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain P 311–320（10 aa） Fragment：RESIDUES 318-327
Mutation：YES EDO 1,2-ETHANEDIOL × 3 X-RAY DIFFRACTION
X-ray crystallization conditions pH 6.5；pH 6.50
Resolution 2.30 Å R-free 0.238
1SZT ATOMIC STRUCTURE OF A THERMOSTABLE SUBDOMAIN OF HIV-1 GP41 Deposited 1997-07-28 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 541–574（34 aa） Fragment：RESIDUES 546 - 579 AND 628 - 655 CONNECTED BY A SIX-RESIDUE LINKER (SER-GLY-GLY-ARG-GLY-GLY)
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.40 Å R-free 0.269
6TVU Structure of native gp41 derived peptide fusion inhibitor Deposited 2020-01-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: nonameric（9） Review required
Chain BBB 616–645（30 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 5.6；293.15 K；PEG 4000, 2-Propanol, Citrate
Resolution 1.25 Å R-free 0.210
6TVW Structure of native gp41 derived peptide fusion inhibitor Deposited 2020-01-10 Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: nonameric（9） Review required
Chain DbD 631–644（14 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；293.15 K；PEG 3350, ammonium sulfate
Resolution 1.45 Å R-free 0.298
9D72 CryoEM structure of anti-MHC-I Fab M1/42 complex with H2-Dd Deposited 2024-08-16 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain P 311–320（10 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.67 Å

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.