4dw7

X-ray diffraction
3.08Å resolution

Crystal structure of an active-site mutant of the glycoprotein Erns from the pestivirus BVDV-1 in complex with a CpU dinucleotide

Released:

Function and Biology Details

Reactions catalysed:
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1)
Leu is conserved at position P1 for all four cleavage sites. Alanine is found at position P1' of the NS4A-NS4B cleavage site, whereas serine is found at position P1' of the NS3-NS4A, NS4B-NS5A and NS5A-NS5B cleavage sites
NTP + H(2)O = NDP + phosphate
ATP + H(2)O = ADP + phosphate
(1a) RNA = an (RNA fragment)-3'-nucleoside-2',3'-cyclophosphate + a 5'-hydroxy-ribonucleotide-3'-(RNA fragment)
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-245568 (preferred)
Entry contents:
1 distinct polypeptide molecule
1 distinct RNA molecule
Macromolecules (5 distinct):
E(rns) glycoprotein Chains: A, B
Molecule details ›
Chains: A, B
Length: 167 amino acids
Theoretical weight: 19 KDa
Source organism: Bovine viral diarrhea virus 1-CP7
Expression system: Drosophila melanogaster
UniProt:
  • Canonical: Q96662 (Residues: 271-435; Coverage: 4%)
Structure domains: Ribonuclease T2-like
5'-R(*CP*U)-3' Chains: H, I
Molecule details ›
Chains: H, I
Length: 2 nucleotides
Theoretical weight: 566 Da
Source organism: synthetic construct
Expression system: Not provided

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG, BMA
Carbohydrate polymer : NEW Components: NAG
Carbohydrate polymer : NEW Components: NAG, BMA, MAN
2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X06SA
Spacegroup: P6522
Unit cell:
a: 105.896Å b: 105.896Å c: 211.794Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.2 0.197 0.245
Expression systems:
  • Drosophila melanogaster
  • Not provided