X-ray diffraction
2.3Å resolution

Crystal Structure of Norwalk Virus Polymerase (Metal-free, Centered Orthorhombic)


Function and Biology Details

Reactions catalysed:
Endopeptidase with a preference for cleavage when the P1 position is occupied by Glu-|- and the P1' position is occupied by Gly-|-
NTP + H(2)O = NDP + phosphate
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
NTPase Chain: A
Molecule details ›
Chain: A
Length: 510 amino acids
Theoretical weight: 56.81 KDa
Source organism: Norwalk virus
Expression system: Escherichia coli
  • Canonical: Q70ET3 (Residues: 329-838; Coverage: 61%)
Sequence domains: Viral RNA-dependent RNA polymerase
Structure domains:

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU300
Spacegroup: C2221
Unit cell:
a: 114.27Å b: 115.24Å c: 91.9Å
α: 90° β: 90° γ: 90°
R R work R free
0.231 0.227 0.291
Expression system: Escherichia coli