CATH Classification

Domain Context

CATH Clusters

Superfamily Trypsin-like serine proteases
Functional Family Replicase polyprotein 1ab

Enzyme Information

3.4.22.-
Cysteine endopeptidases.
based on mapping to UniProt P0C6U6
3.4.19.12
Ubiquitinyl hydrolase 1.
based on mapping to UniProt P0C6U6
Thiol-dependent hydrolysis of ester, thioester, amide, peptide and isopeptide bonds formed by the C-terminal Gly of ubiquitin (a 76-residue protein attached to proteins as an intracellular targeting signal).
-!- Links to polypeptides smaller than 60 residues are hydrolyzed more readily than those to larger polypeptides. -!- Isoforms exist with quantitatively different specificities among the best known being UCH-L1 and UCH-L3, major proteins of the brain of mammals. -!- Inhibited by ubiquitin aldehyde (in which Gly76 is replaced by aminoacetaldehyde). -!- Belongs to peptidase family C12.

UniProtKB Entries (1)

P0C6U6
R1A_CVHNL
Human coronavirus NL63
Replicase polyprotein 1a

PDB Structure

PDB 3TLO
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal structure of human coronavirus NL63 3C-like protease
Chuck, C.P., Wong, K.B.
To be Published