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 6BCM
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Mutation of Asn-475 in the Venezuelan Equine Encephalitis Virus nsP2 Cysteine Protease Leads to a Self-Inhibited State.
Compton, J.R., Mickey, M.J., Hu, X., Marugan, J.J., Legler, P.M.
Biochemistry
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