3w95

X-ray diffraction
1.85Å resolution

Crystal structure of 2A proteinase (C110A) from enterovirus 71

Released:

Function and Biology Details

Reactions catalysed:
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1)
Selective cleavage of Gln-|-Gly bond in the poliovirus polyprotein. In other picornavirus reactions Glu may be substituted for Gln, and Ser or Thr for Gly.
Selective cleavage of Tyr-|-Gly bond in picornavirus polyprotein.
NTP + H(2)O = NDP + phosphate
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-179253 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Protease 2A Chain: A
Molecule details ›
Chain: A
Length: 171 amino acids
Theoretical weight: 18.86 KDa
Source organism: Human enterovirus 71 (strain 7423/MS/87)
Expression system: Escherichia coli
UniProt:
  • Canonical: Q66479 (Residues: 860-1012; Coverage: 7%)
Sequence domains: Picornavirus core protein 2A
Structure domains: Trypsin-like serine proteases

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU
Spacegroup: P41212
Unit cell:
a: 92.524Å b: 92.524Å c: 36.127Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.219 0.217 0.249
Expression system: Escherichia coli