CATH Domain 2a4oA01

CATH Classification

Level	CATH Code	Description
	2	Mainly Beta
	2.40	Beta Barrel
	2.40.10	Thrombin, subunit H
	2.40.10.10	Trypsin-like serine proteases

Domain Context

CATH Clusters

Superfamily	Trypsin-like serine proteases
Functional Family

Enzyme Information

3.4.22.28	Picornain 3C. based on mapping to UniProt P13901 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.
3.6.1.15	Nucleoside-triphosphate phosphatase. based on mapping to UniProt P13901 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 P13901 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)

POLG_HAVMB

Human hepatitis A virus Hu/Northern Africa/MBB/1978

Genome polyprotein

PDB Structure

PDB	2A4O
External Links	PDBSum Proteopedia
Method	X-RAY DIFFRACTION
Organism	Escherichia
Primary Citation	Dual Modes of Modification of Hepatitis A Virus 3C Protease by a Serine-derived beta-Lactone: Selective Crystallization and Formation of a Functional Catalytic Triad in the Active Site Yin, J., Bergmann, E.M., Cherney, M.M., Lall, M.S., Jain, R.P., Vederas, J.C., James, M.N.G. J.MOL.BIOL.