1qol

X-ray diffraction
3Å resolution

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.
Autocatalytically cleaves itself from the polyprotein of the foot-and-mouth disease virus by hydrolysis of a Lys-|-Gly bond, but then cleaves host cell initiation factor eIF-4G at bonds -Gly-|-Arg- and -Lys-|-Arg-.
NTP + H(2)O = NDP + phosphate
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-136753 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Leader protease Chains: A, B, C, D, E, F, G, H
Molecule details ›
Chains: A, B, C, D, E, F, G, H
Length: 173 amino acids
Theoretical weight: 19.78 KDa
Source organism: Foot-and-mouth disease virus (strain O1)
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P03305 (Residues: 29-201; Coverage: 7%)
Sequence domains: Foot-and-mouth virus L-proteinase
Structure domains: Cysteine proteinases

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: EMBL/DESY, HAMBURG BEAMLINE X11
Spacegroup: P212121
Unit cell:
a: 65.43Å b: 101.56Å c: 276.97Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.258 0.258 0.314
Expression system: Escherichia coli BL21(DE3)