CATH Classification

Domain Context

CATH Clusters

Superfamily Vaccinia Virus protein VP39
Functional Family

Enzyme Information

2.7.7.-
Nucleotidyltransferases.
based on mapping to UniProt P27282
2.1.1.-
Methyltransferases.
based on mapping to UniProt P27282
2.7.7.48
RNA-directed RNA polymerase.
based on mapping to UniProt P27282
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1).
-!- Catalyzes RNA-template-directed extension of the 3'-end of an RNA strand by one nucleotide at a time. -!- Can initiate a chain de novo. -!- See also EC 2.7.7.6.
3.4.22.-
Cysteine endopeptidases.
based on mapping to UniProt P27282
3.6.4.13
RNA helicase.
based on mapping to UniProt P27282
ATP + H(2)O = ADP + phosphate.
-!- RNA helicases utilize the energy from ATP hydrolysis to unwind RNA. -!- Some of them unwind RNA with a 3' to 5' polarity, other show 5' to 3' polarity. -!- Some helicases unwind DNA as well as RNA. -!- May be identical with EC 3.6.4.12 (DNA helicase).
3.1.3.84
ADP-ribose 1''-phosphate phosphatase.
based on mapping to UniProt P27282
ADP-D-ribose 1''-phosphate + H(2)O = ADP-D-ribose + phosphate.
-!- The enzyme is highly specific for ADP-D-ribose 1''-phosphate. -!- Involved together with EC 3.1.4.37 in the breakdown of adenosine diphosphate ribose 1'',2''-cyclic phosphate (Appr>p), a by-product of tRNA splicing. -!- Formerly EC 3.1.3.n2.
2.7.7.19
Polynucleotide adenylyltransferase.
based on mapping to UniProt P27282
ATP + RNA(n) = diphosphate + RNA(n+1).
-!- Also acts slowly with CTP. -!- Catalyzes template-independent extension of the 3'-end of a DNA strand by one nucleotide at a time. -!- Cannot initiate a chain de novo. -!- The primer, depending on the source of the enzyme, may be an RNA or DNA fragment or oligo(A) bearing a 3'-OH terminal group. -!- See also EC 2.7.7.6.
3.6.1.15
Nucleoside-triphosphate phosphatase.
based on mapping to UniProt P27282
NTP + H(2)O = NDP + phosphate.
-!- The enzyme is found in eukaryotes and thermophilic bacteria, but appears to be absent from mesophilic bacteria. -!- Also hydrolyzes nucleoside diphosphates, thiamine diphosphate and FAD. -!- The enzyme from the plant Pisum sativum (garden pea) is regulated by calmodulin.
3.1.3.33
Polynucleotide 5'-phosphatase.
based on mapping to UniProt P27282
A 5'-phosphopolynucleotide + H(2)O = a polynucleotide + phosphate.
-!- Does not act on nucleoside monophosphates. -!- Induced in Escherichia coli by T-even phages.

UniProtKB Entries (1)

P27282
POLN_EEVVT
Venezuelan equine encephalitis virus (strain Trinidad donkey)
Polyprotein P1234

PDB Structure

PDB 5EZS
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Kinetic, Mutational, and Structural Studies of the Venezuelan Equine Encephalitis Virus Nonstructural Protein 2 Cysteine Protease.
Hu, X., Compton, J.R., Leary, D.H., Olson, M.A., Lee, M.S., Cheung, J., Ye, W., Ferrer, M., Southall, N., Jadhav, A., Morazzani, E.M., Glass, P.J., Marugan, J., Legler, P.M.
Biochemistry