Desumoylating isopeptidase 1

UniProtKB accession:  Q9CQT7

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UniProtKB description:  Protease which deconjugates SUMO1, SUMO2 and SUMO3 from some substrate proteins (PubMed:22370726, PubMed:22498933). Has isopeptidase but not SUMO-processing activity (PubMed:22370726, PubMed:22498933). Desumoylates ZBTB46 (PubMed:22370726). Collaborates with UBQLN4 in the export of ubiquitinated proteins from the nucleus to the cytoplasm (By similarity). Exhibits palmitoyl protein thioesterase (S-depalmitoylation) activity towards synthetic substrates 4-methylumbelliferyl-6-S-palmitoyl-beta-D-glucopyranoside and S-depalmitoylation probe 5 (DPP-5) (By similarity).