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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：P42081 New Search
7PDB entries
9Biological assembly
34chain/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
1I85 CRYSTAL STRUCTURE OF THE CTLA-4/B7-2 COMPLEX Deposited 2001-03-12 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 26–134（109 aa） Fragment：IG V-TYPE (RECEPTOR BINDING) DOMAIN
Chain B 26–134（109 aa） Fragment：IG V-TYPE (RECEPTOR BINDING) DOMAIN
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；PEG20K, HEPES, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 3.20 Å R-free 0.300
1NCN the receptor-binding domain of human B7-2 Deposited 2002-12-05 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 26–134（109 aa） Fragment：Ig V-type domain
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；PEG4000, NaAC, Tris-HCl, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.70 Å R-free 0.278
1NCN the receptor-binding domain of human B7-2 Deposited 2002-12-05 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 26–134（109 aa） Fragment：Ig V-type domain
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；PEG4000, NaAC, Tris-HCl, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.70 Å R-free 0.278
5YXK High resolution crystal structure of Human B7-2 IgV domain in P21 space group Deposited 2017-12-05 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 26–134（109 aa） Fragment：Ig-like V-type
Chain B 26–134（109 aa） Fragment：Ig-like V-type
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；298 K；0.1M Tris HCl pH 8.5, 2.4M Ammonium phosphate dibasic
Resolution 1.90 Å R-free 0.248
5YXK High resolution crystal structure of Human B7-2 IgV domain in P21 space group Deposited 2017-12-05 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 26–134（109 aa） Fragment：Ig-like V-type
Chain D 26–134（109 aa） Fragment：Ig-like V-type
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；298 K；0.1M Tris HCl pH 8.5, 2.4M Ammonium phosphate dibasic
Resolution 1.90 Å R-free 0.248
8FXX Cryo-EM structure of cowpox virus M2 in complex with human B7.2 (heptameric ring) Deposited 2023-01-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric（14） Consistent with protein count
Chain C 26–134（109 aa）
Chain E 26–134（109 aa）
Chain G 26–134（109 aa）
Chain H 26–134（109 aa）
Chain J 26–134（109 aa）
Chain L 26–134（109 aa）
Chain N 26–134（109 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 21 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；150 mM Nacl, 25 mM HEPES, pH7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.26 Å
8FXY Cryo-EM structure of cowpox virus M2 in complex with human B7.2 (hexameric ring) Deposited 2023-01-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric（12） Consistent with protein count
Chain C 26–243（218 aa）
Chain E 26–243（218 aa）
Chain G 26–243（218 aa）
Chain H 26–243（218 aa）
Chain J 26–243（218 aa）
Chain L 26–243（218 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；150 mM Nacl, 25 mM HEPES, pH7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.34 Å
8HXB Cryo-EM structure of MPXV M2 hexamer in complex with human B7.2 Deposited 2023-01-04 Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric（12） Consistent with protein count
Chain G 26–238（213 aa）
Chain H 26–238（213 aa）
Chain I 26–238（213 aa）
Chain J 26–238（213 aa）
Chain K 26–238（213 aa）
Chain L 26–238（213 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
8HXC Cryo-EM structure of MPXV M2 heptamer in complex with human B7.2 Deposited 2023-01-04 Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric（14） Consistent with protein count
Chain H 26–238（213 aa）
Chain I 26–238（213 aa）
Chain J 26–238（213 aa）
Chain K 26–238（213 aa）
Chain L 26–238（213 aa）
Chain M 26–238（213 aa）
Chain N 26–238（213 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.12 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.