7nxu

X-ray diffraction
2.1Å resolution

Crystal structure of the tick-borne encephalitis virus NS3 helicase in complex with ADP-Pi

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:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-146908 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Serine protease NS3 Chain: A
Molecule details ›
Chain: A
Length: 473 amino acids
Theoretical weight: 53.49 KDa
Source organism: Tick-borne encephalitis virus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P14336 (Residues: 1662-2110; Coverage: 13%)
Sequence domains:

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: BESSY BEAMLINE 14.1
Spacegroup: P41212
Unit cell:
a: 72.98Å b: 72.98Å c: 196.586Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.216 0.214 0.251
Expression system: Escherichia coli BL21(DE3)