UniProt Summary: Protease that deconjugates SUMO1, SUMO2 and SUMO3 from targeted proteins. Processes preferentially poly-SUMO2 and poly- SUMO3 chains, but does not efficiently process SUMO1, SUMO2 and SUMO3 precursors. Deconjugates SUMO1 from RXRA, leading to transcriptional activation. Involved in chromosome alignment and spindle assembly, by regulating the kinetochore CENPH-CENPI-CENPK complex. Desumoylates PML and CENPI, protecting them from degradation by the ubiquitin ligase RNF4, which targets polysumoylated proteins for proteasomal degradation. Desumoylates also RPA1, thus preventing recruitment of RAD51 to the DNA damage foci to initiate DNA repair through homologous recombination. {ECO:0000269|PubMed:16912044, ECO:0000269|PubMed:17000875, ECO:0000269|PubMed:18799455, ECO:0000269|PubMed:20212317, ECO:0000269|PubMed:20705237, ECO:0000269|PubMed:21148299}.
Pfam DomainsGO Terms
Pfam Domains
Peptidase C48
GO Terms
SUMO-specific endopeptidase activity
regulation of kinetochore assembly
regulation of centromere complex assembly
protein desumoylation
regulation of spindle assembly
regulation of spindle organization
protein sumoylation
regulation of microtubule cytoskeleton organization
regulation of organelle assembly
regulation of microtubule-based process
protein modification by small protein removal
peptidyl-lysine modification
regulation of chromosome organization
regulation of protein complex assembly
regulation of cytoskeleton organization
regulation of cell cycle process
protein modification by small protein conjugation
peptidyl-amino acid modification
regulation of cellular component biogenesis
protein modification by small protein conjugation or removal
regulation of cell cycle
proteolysis
regulation of organelle organization
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)