CATH Classification

Domain Context

CATH Clusters

Superfamily 3.90.70.40
Functional Family ataxin-3 isoform X1

Enzyme Information

3.4.19.12
Ubiquitinyl hydrolase 1.
based on mapping to UniProt Q9H3M9
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)

Q9H3M9
ATX3L_HUMAN
Homo sapiens
Ataxin-3-like protein

PDB Structure

PDB 3O65
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal Structure of a Josephin-Ubiquitin Complex: EVOLUTIONARY RESTRAINTS ON ATAXIN-3 DEUBIQUITINATING ACTIVITY.
Weeks, S.D., Grasty, K.C., Hernandez-Cuebas, L., Loll, P.J.
J.Biol.Chem.
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