CATH Classification

Domain Context

CATH Clusters

Superfamily 2.60.120.20
Functional Family Genome polyprotein

Enzyme Information

3.6.1.15
Nucleoside-triphosphate phosphatase.
based on mapping to UniProt P03302
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.
2.7.7.48
RNA-directed RNA polymerase.
based on mapping to UniProt P03302
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.
3.4.22.28
Picornain 3C.
based on mapping to UniProt P03302
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 P03302
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.

UniProtKB Entries (1)

P03302
POLG_POL3L
Poliovirus type 3 (strains P3/LEON/37 AND P3/LEON 12A[1]B)
Genome polyprotein

PDB Structure

PDB 1PVC
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Refinement of the Sabin Strain of Type 3 Poliovirus at 2.4 Angstroms and the Crystal Structures of its Variants at 2.9 Angstroms Resolution
Syed, R., Filman, D.J., Hogle, J.M.
To be Published
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