CATH Classification

Domain Context

CATH Clusters

Superfamily 1.10.418.20
Functional Family Ubiquitin-like-specific protease 1

Enzyme Information

3.4.22.68
Ulp1 peptidase.
based on mapping to UniProt Q02724
Hydrolysis of the alpha-linked peptide bond in the sequence Gly- Gly-|-Ala-Thr-Tyr at the C-terminal end of the small ubiquitin-like modifier (SUMO) propeptide, Smt3, leading to the mature form of the protein. A second reaction involves the cleavage of an epsilon-linked peptide bond between the C-terminal glycine of the mature SUMO and the lysine epsilon-amino group of the target protein.
-!- The enzyme from Saccharomyces cerevisiae can also recognize small ubiquitin-like modifier 1 (SUMO-1) from human as a substrate in both SUMO-processing (alpha-linked peptide bonds) and SUMO-deconjugation (epsilon-linked peptide bonds) reactions. -!- Ulp1 has several functions, including an essential role in chromosomal segregation and progression of the cell cycle through the G2/M phase of the cell cycle. -!- Belongs to peptidase family C48.

UniProtKB Entries (1)

Q02724
ULP1_YEAST
Saccharomyces cerevisiae S288C
Ubiquitin-like-specific protease 1

PDB Structure

PDB 2HKP
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Molecular basis of the redox regulation of SUMO proteases: a protective mechanism of intermolecular disulfide linkage against irreversible sulfhydryl oxidation
Xu, Z., Lam, L.S.M., Lam, L.H., Chau, S.F., Ng, T.B., Au, S.W.N.
Faseb J.