2j92

X-ray diffraction
2.2Å resolution

3C PROTEASE FROM TYPE A10(61) FOOT-AND-MOUTH DISEASE VIRUS - Crystal packing mutant (K51Q)

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.
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:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-136755 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Protease 3C Chains: A, B
Molecule details ›
Chains: A, B
Length: 209 amino acids
Theoretical weight: 22.52 KDa
Source organism: Foot-and-mouth disease virus (strain A10-61)
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P03306 (Residues: 1649-1856; Coverage: 9%)
Sequence domains: 3C cysteine protease (picornain 3C)
Structure domains: Trypsin-like serine proteases

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SRS BEAMLINE PX10.1
Spacegroup: P212121
Unit cell:
a: 59.387Å b: 71.708Å c: 92.399Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.229 0.229 0.254
Expression system: Escherichia coli BL21(DE3)