2pxc

X-ray diffraction
2.8Å resolution

Crystal structure of the Murray Valley Encephalitis Virus NS5 2'-O Methyltransferase domain in complex with SAM and GTPA

Released:

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-138766 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
RNA-directed RNA polymerase NS5 Chain: A
Molecule details ›
Chain: A
Length: 269 amino acids
Theoretical weight: 30.31 KDa
Source organism: Murray valley encephalitis virus (strain MVE-1-51)
Expression system: Escherichia coli
UniProt:
  • Canonical: P05769 (Residues: 2530-2798; Coverage: 8%)
Sequence domains: FtsJ-like methyltransferase
Structure domains: Vaccinia Virus protein VP39

Ligands and Environments


Cofactor: Ligand SAM 1 x SAM
1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID23-1
Spacegroup: P43212
Unit cell:
a: 81.021Å b: 81.021Å c: 94.011Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.205 0.203 0.256
Expression system: Escherichia coli