CATH Classification

Domain Context

CATH Clusters

Superfamily Trypsin-like serine proteases
Functional Family Genome polyprotein

Enzyme Information

3.6.1.15
Nucleoside-triphosphate phosphatase.
based on mapping to UniProt P08292
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.
3.4.22.28
Picornain 3C.
based on mapping to UniProt P08292
Selective cleavage of Gln-|-Gly bond in the poliovirus polyprotein. In other picornavirus reactions Glu may be substituted for Gln, and Ser or Thr for Gly.
-!- From entero-, rhino-, aphto- and cardioviruses. -!- Larger than the homologous virus picornain 2A. -!- Belongs to peptidase family C3.
3.4.22.29
Picornain 2A.
based on mapping to UniProt P08292
Selective cleavage of Tyr-|-Gly bond in the picornavirus polyprotein.
-!- From entero- and rhinoviruses. -!- Smaller than the homologous virus picornain 3C. -!- Belongs to peptidase family C3.
2.7.7.48
RNA-directed RNA polymerase.
based on mapping to UniProt P08292
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.

UniProtKB Entries (1)

P08292
POLG_CXB4J
Coxsackievirus B4 (strain JVB / Benschoten / New York/51)
Genome polyprotein

PDB Structure

PDB 1Z8R
External Links
Method SOLUTION NMR
Organism Escherichia
Primary Citation
Structure and dynamics of coxsackievirus B4 2A proteinase, an enyzme involved in the etiology of heart disease.
Baxter, N.J., Roetzer, A., Liebig, H.D., Sedelnikova, S.E., Hounslow, A.M., Skern, T., Waltho, J.P.
J.Virol.
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