4a92

X-ray diffraction
2.73Å resolution

Full-length HCV NS3-4A protease-helicase in complex with a macrocyclic protease inhibitor.

Released:

Function and Biology Details

Reactions catalysed:
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1)
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'.
NTP + H(2)O = NDP + phosphate
ATP + H(2)O = ADP + phosphate
Biochemical function:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
PDBe Complex ID:
PDB-CPX-150815 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Serine protease/helicase NS3 Chains: A, B
Molecule details ›
Chains: A, B
Length: 666 amino acids
Theoretical weight: 70.82 KDa
Source organism: Hepacivirus C
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P26663 (Residues: 1013-1025, 1029-1657; Coverage: 21%)
Sequence domains:
Structure domains:

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X10SA
Spacegroup: P212121
Unit cell:
a: 91.972Å b: 110.47Å c: 137.227Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.181 0.178 0.23
Expression system: Escherichia coli BL21(DE3)