Structure analysis

Human class II MHC protein HLA-DR1 bound to a designed peptide related to influenza virus hemagglutinin, FVKQNA(MAA)AL, in complex with staphylococcal enterotoxin C3 variant 3B2 (SEC3-3B2)

X-ray diffraction
2.1Å resolution
Assembly composition:
hetero tetramer (preferred)
Entry contents: 4 distinct polypeptide molecules

Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero tetramer
Accessible surface area: 27600 Å2
Buried surface area: 8400 Å2
Dissociation area: 650 Å2
Dissociation energy (ΔGdiss): -3 kcal/mol
Dissociation entropy (TΔSdiss): 13 kcal/mol
Interface energy (ΔGint): -45 kcal/mol
Symmetry number: 1

Macromolecules

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Chain: C
Length: 10 amino acids
Theoretical weight: 1 KDa
Source organism: Influenza A virus (A/Aichi/2/1968(H3N2))
Expression system: Not provided
UniProt:
  • Canonical: P03437 (Residues: 324-332; Coverage: 2%)
Gene name: HA

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