5gp1

X-ray diffraction
2.44Å resolution

Crystal structure of ZIKV NS5 Methyltransferase in complex with GTP and SAH

Released:
Source organism: Zika virus
Primary publication:
Structure of the NS5 methyltransferase from Zika virus and implications in inhibitor design.
Biochem Biophys Res Commun 492 624-630 (2017)
PMID: 27866982

Function and Biology Details

Reactions catalysed:
S-adenosyl-L-methionine + a 5'-(5'-triphosphoguanosine)-[mRNA] = S-adenosyl-L-homocysteine + a 5'-(N(7)-methyl 5'-triphosphoguanosine)-[mRNA]
S-adenosyl-L-methionine + a 5'-(N(7)-methyl 5'-triphosphoguanosine)-(ribonucleotide)-[mRNA] = S-adenosyl-L-homocysteine + a 5'-(N(7)-methyl 5'-triphosphoguanosine)-(2'-O-methyl-ribonucleotide)-[mRNA]
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1)
Selective hydrolysis of -Xaa-Xaa-|-Yaa- bonds in which each of the Xaa can be either Arg or Lys and Yaa can be either Ser or Ala.
NTP + H(2)O = NDP + phosphate
ATP + H(2)O = ADP + phosphate
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-100062 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
RNA-directed RNA polymerase NS5 Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 269 amino acids
Theoretical weight: 29.71 KDa
Source organism: Zika virus
Expression system: Escherichia coli
UniProt:
  • Canonical: A0A024B7W1 (Residues: 2524-2785; Coverage: 8%)
Sequence domains: FtsJ-like methyltransferase
Structure domains: Vaccinia Virus protein VP39

Ligands and Environments


Cofactor: Ligand SAH 3 x SAH
3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRF BEAMLINE BL19U1
Spacegroup: P61
Unit cell:
a: 123.77Å b: 123.77Å c: 119.36Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.239 0.237 0.28
Expression system: Escherichia coli