6taw

X-ray diffraction
1.41Å resolution

3C-like protease from Southampton virus complexed with FMOPL000411a.

Released:

Function and Biology Details

Reactions catalysed:
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1)
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
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-170036 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
3C-like protease Chain: A
Molecule details ›
Chain: A
Length: 172 amino acids
Theoretical weight: 18.39 KDa
Source organism: Southampton virus (serotype 3)
Expression system: Escherichia coli 'BL21-Gold(DE3)pLysS AG'
UniProt:
  • Canonical: Q04544 (Residues: 1100-1271; Coverage: 10%)
Gene name: ORF1
3C-like protease Chain: B
Molecule details ›
Chain: B
Length: 171 amino acids
Theoretical weight: 18.29 KDa
Source organism: Southampton virus (serotype 3)
Expression system: Escherichia coli 'BL21-Gold(DE3)pLysS AG'
UniProt:
  • Canonical: Q04544 (Residues: 1102-1272; Coverage: 10%)
Gene name: ORF1

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: DIAMOND BEAMLINE I04-1
Spacegroup: C2
Unit cell:
a: 62.922Å b: 89.058Å c: 61.343Å
α: 90° β: 97.26° γ: 90°
R-values:
R R work R free
0.131 0.128 0.178
Expression system: Escherichia coli 'BL21-Gold(DE3)pLysS AG'