PDBe 3mrg

X-ray diffraction
1.3Å resolution

Crystal Structure of MHC class I HLA-A2 molecule complexed with HCV NS3-1073-1081 nonapeptide


Function and Biology Details

Reactions catalysed:
ATP + H(2)O = ADP + phosphate
NTP + H(2)O = NDP + phosphate
Hydrolysis of four peptide bonds in the viral precursor polyprotein, commonly with Asp or Glu in the P6 position, Cys or Thr in P1 and Ser or Ala in P1'.
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1)
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Beta-2-microglobulin Chain: B
Molecule details ›
Chain: B
Length: 100 amino acids
Theoretical weight: 11.88 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: P61769 (Residues: 21-119; Coverage: 100%)
Gene names: B2M, CDABP0092, HDCMA22P
Sequence domains: Immunoglobulin C1-set domain
Structure domains: Immunoglobulins
HLA class I histocompatibility antigen, A-2 alpha chain Chain: A
Molecule details ›
Chain: A
Length: 293 amino acids
Theoretical weight: 34.01 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: P01892 (Residues: 25-300; Coverage: 81%)
Gene names: HLA-A, HLAA
Sequence domains:
Structure domains:
Serine protease NS3 Chain: P
Molecule details ›
Chain: P
Length: 9 amino acids
Theoretical weight: 994 Da
Source organism: Hepatitis C virus isolate HC-J1
Expression system: Not provided
  • Canonical: Q03463 (Residues: 1073-1081; Coverage: 0%)

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-2
Spacegroup: P21
Unit cell:
a: 53.12Å b: 80.87Å c: 56.2Å
α: 90° β: 112.33° γ: 90°
R R work R free
0.18 0.179 0.202
Expression systems:
  • Escherichia coli
  • Not provided