4dcd

X-ray diffraction
1.69Å resolution

1.6A resolution structure of PolioVirus 3C Protease Containing a covalently bound dipeptidyl inhibitor

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
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-136689 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Protease 3C Chain: A
Molecule details ›
Chain: A
Length: 190 amino acids
Theoretical weight: 20.61 KDa
Source organism: Human poliovirus 1 Mahoney
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P03300 (Residues: 1566-1748; Coverage: 8%)
Sequence domains: 3C cysteine protease (picornain 3C)
Structure domains: Trypsin-like serine proteases

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 17-ID
Spacegroup: I222
Unit cell:
a: 56.083Å b: 58.607Å c: 107.991Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.167 0.166 0.189
Expression system: Escherichia coli BL21