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CRYSTAL STRUCTURE OF HUMAN CD81 EXTRACELLULAR DOMAIN, A RECEPTOR FOR HEPATITIS C VIRUS

X-ray diffraction
1.6Å resolution
PDB entry 1g8q coloured by chain, front view.
PDB entry 1g8q coloured by chain, side view.
PDB entry 1g8q coloured by chain, top view.
Source organism: Homo sapiens
Assembly composition:
homo dimer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: CD81 antigen
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Multimeric state: homo dimer
Accessible surface area: 9142.65 Å2
Buried surface area: 1889.42 Å2
Dissociation area: 944.71 Å2
Dissociation energy (ΔGdiss): 8.63 kcal/mol
Dissociation entropy (TΔSdiss): 10.89 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-157955

Macromolecules

CD81 antigen
Chains: A, B
Length: 90 amino acids
Theoretical weight: 9.92 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P60033 (Residues: 113-202; Coverage: 38%)
Gene names: CD81, TAPA1, TSPAN28
Pfam: Tetraspanin family
InterPro: Tetraspanin, EC2 domain superfamily
CATH: Tetraspanin
SCOP: Tetraspanin
CD81 antigen in PDB entry 1g8q, assembly 1, front view.
CD81 antigen in PDB entry 1g8q, assembly 1, side view.
CD81 antigen in PDB entry 1g8q, assembly 1, top view.
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