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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：P01012 New Search
11PDB entries
23Biological assembly
25chain/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
1JTI Loop-inserted Structure of P1-P1' Cleaved Ovalbumin Mutant R339T Deposited 2001-08-21 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–385（385 aa）
Mutation：R339T No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；303 K；ammonium sulfate, Bis-Tris, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 303K
Resolution 2.30 Å R-free 0.252
1JTI Loop-inserted Structure of P1-P1' Cleaved Ovalbumin Mutant R339T Deposited 2001-08-21 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–385（385 aa）
Mutation：R339T No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；303 K；ammonium sulfate, Bis-Tris, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 303K
Resolution 2.30 Å R-free 0.252
1OVA CRYSTAL STRUCTURE OF UNCLEAVED OVALBUMIN AT 1.95 ANGSTROMS RESOLUTION Deposited 1990-11-26 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–385（385 aa）
Chain B 1–385（385 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 CA CALCIUM ION × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.95 Å
1OVA CRYSTAL STRUCTURE OF UNCLEAVED OVALBUMIN AT 1.95 ANGSTROMS RESOLUTION Deposited 1990-11-26 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 1–385（385 aa）
Chain D 1–385（385 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.95 Å
1P1Z X-RAY CRYSTAL STRUCTURE OF THE LECTIN-LIKE NATURAL KILLER CELL RECEPTOR LY-49C BOUND TO ITS MHC CLASS I LIGAND H-2Kb Deposited 2003-04-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain P 257–264（8 aa） Fragment：residues 257-264
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 9；277 K；10% PEG 20000, 2% DIOXANE, 0.1 M Bicine, pH 9.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 3.26 Å R-free 0.316
1P4L Crystal structure of NK receptor Ly49C mutant with its MHC class I ligand H-2Kb Deposited 2003-04-23 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain P 257–264（8 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；Protein 8mg/ml, 0.1 M HEPES-Na pH 7.5, 2% v/v PEG400, 2.0 M Ammonium Sulfate, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.90 Å R-free 0.295
1UHG Crystal Structure of S-Ovalbumin At 1.9 Angstrom Resolution Deposited 2003-07-03 Assembly 1 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–385（385 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；303 K；Ammonium sulfate, sodium acetate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 303K
Resolution 1.90 Å R-free 0.247
1UHG Crystal Structure of S-Ovalbumin At 1.9 Angstrom Resolution Deposited 2003-07-03 Assembly 2 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–385（385 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；303 K；Ammonium sulfate, sodium acetate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 303K
Resolution 1.90 Å R-free 0.247
1UHG Crystal Structure of S-Ovalbumin At 1.9 Angstrom Resolution Deposited 2003-07-03 Assembly 3 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 1–385（385 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；303 K；Ammonium sulfate, sodium acetate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 303K
Resolution 1.90 Å R-free 0.247
1UHG Crystal Structure of S-Ovalbumin At 1.9 Angstrom Resolution Deposited 2003-07-03 Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain D 1–385（385 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；303 K；Ammonium sulfate, sodium acetate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 303K
Resolution 1.90 Å R-free 0.247
1VAC MHC CLASS I H-2KB HEAVY CHAIN COMPLEXED WITH BETA-2 MICROGLOBULIN AND CHICKEN OVALBUMIN Deposited 1994-11-01 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain P 257–264（8 aa） Fragment：RESIDUES 257 - 264
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.50 Å
3CVH How TCR-like antibody recognizes MHC-bound peptide Deposited 2008-04-18 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain C 258–265（8 aa） Fragment：sequence database residues 258-265
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.6；293 K；0.2 M (NH4)2SO4, 0.1 M NaOAc, pH 4.6 containing 25% w/v polyethylene glycol 4000, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.90 Å R-free 0.296
3CVH How TCR-like antibody recognizes MHC-bound peptide Deposited 2008-04-18 Assembly 2 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain O 258–265（8 aa） Fragment：sequence database residues 258-265
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.6；293 K；0.2 M (NH4)2SO4, 0.1 M NaOAc, pH 4.6 containing 25% w/v polyethylene glycol 4000, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.90 Å R-free 0.296
3P9L Crystal Structure of H2-Kb in complex with the chicken ovalbumin epitope OVA Deposited 2010-10-18 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain F 258–265（8 aa）
Not recorded CA CALCIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M calcium acetate, 15% PEG 8K, 0.1M Na-cacodylate, pH 6.5, vapor diffusion, hanging drop, temperature 277K
Resolution 2.00 Å R-free 0.243
3P9L Crystal Structure of H2-Kb in complex with the chicken ovalbumin epitope OVA Deposited 2010-10-18 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain C 258–265（8 aa）
Not recorded CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.2M calcium acetate, 15% PEG 8K, 0.1M Na-cacodylate, pH 6.5, vapor diffusion, hanging drop, temperature 277K
Resolution 2.00 Å R-free 0.243
3P9M Crystal Structure of H2-Kb in complex with a mutant of the chicken ovalbumin epitope OVA-G4 Deposited 2010-10-18 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain F 258–265（8 aa）
Mutation：N4G No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；277 K；0.2M calcium acetate, 15% PEG 8K, 0.1M Na-malonate, pH 6, vapor diffusion, hanging drop, temperature 277K
Resolution 2.00 Å R-free 0.244
3P9M Crystal Structure of H2-Kb in complex with a mutant of the chicken ovalbumin epitope OVA-G4 Deposited 2010-10-18 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain C 258–265（8 aa）
Mutation：N4G No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；277 K；0.2M calcium acetate, 15% PEG 8K, 0.1M Na-malonate, pH 6, vapor diffusion, hanging drop, temperature 277K
Resolution 2.00 Å R-free 0.244
3PAB Crystal Structure of H2-Kb in complex with a mutant of the chicken ovalbumin epitope OVA-E1 Deposited 2010-10-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain F 258–265（8 aa）
Mutation：S1E No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；277 K；0.2M calcium acetate, 15% PEG 8K, 0.1M Na-malonate, pH 6, vapor diffusion, hanging drop, temperature 277K
Resolution 2.20 Å R-free 0.260
3PAB Crystal Structure of H2-Kb in complex with a mutant of the chicken ovalbumin epitope OVA-E1 Deposited 2010-10-19 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain C 258–265（8 aa）
Mutation：S1E No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；277 K；0.2M calcium acetate, 15% PEG 8K, 0.1M Na-malonate, pH 6, vapor diffusion, hanging drop, temperature 277K
Resolution 2.20 Å R-free 0.260
4HKJ Structure of Cowpox CPXV203 in complex with MHCI (H-2Kb) Deposited 2012-10-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain C 258–265（8 aa） Fragment：UNP residues 258-265
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.55；293 K；10% PEG6000, 4% glucose, 2% ethylene glycol, 0.1 M tri-potassium citrate, 0.01% azide, pH 5.55, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.00 Å R-free 0.253
4HKJ Structure of Cowpox CPXV203 in complex with MHCI (H-2Kb) Deposited 2012-10-15 Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain G 258–265（8 aa） Fragment：UNP residues 258-265
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.55；293 K；10% PEG6000, 4% glucose, 2% ethylene glycol, 0.1 M tri-potassium citrate, 0.01% azide, pH 5.55, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.00 Å R-free 0.253
4HKJ Structure of Cowpox CPXV203 in complex with MHCI (H-2Kb) Deposited 2012-10-15 Assembly 3 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain K 258–265（8 aa） Fragment：UNP residues 258-265
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.55；293 K；10% PEG6000, 4% glucose, 2% ethylene glycol, 0.1 M tri-potassium citrate, 0.01% azide, pH 5.55, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.00 Å R-free 0.253
4HKJ Structure of Cowpox CPXV203 in complex with MHCI (H-2Kb) Deposited 2012-10-15 Assembly 4 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain O 258–265（8 aa） Fragment：UNP residues 258-265
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.55；293 K；10% PEG6000, 4% glucose, 2% ethylene glycol, 0.1 M tri-potassium citrate, 0.01% azide, pH 5.55, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.00 Å R-free 0.253

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.