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UniProt functional annotation for Q9Y5K5 | ||
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| UniProt code: Q9Y5K5. |
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| Organism: | |
Homo sapiens (Human). |
| Taxonomy: | |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo. |
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| Function: | |
Protease that specifically cleaves 'Lys-48'-linked polyubiquitin chains. Deubiquitinating enzyme associated with the 19S regulatory subunit of the 26S proteasome. Putative regulatory component of the INO80 complex; however is inactive in the INO80 complex and is activated by a transient interaction of the INO80 complex with the proteasome via ADRM1. {ECO:0000269|PubMed:16906146, ECO:0000269|PubMed:18922472}. |
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| Catalytic activity: | |
Reaction=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).; EC=3.4.19.12; |
| Activity regulation: | |
Activated by ADRM1. Inhibited by interaction with NFRKB. {ECO:0000269|PubMed:16906146, ECO:0000269|PubMed:17139257, ECO:0000269|PubMed:18922472}. |
| Subunit: | |
Component of the 19S (PA700) regulatory complex of the 26S proteasome. Interacts with ADRM1 and NFRKB; in vitro ADRM1 and NFRKB compete for interaction with UCHL5. Component of the INO80 complex; specifically part of a complex module associated with N-terminus of INO80. {ECO:0000269|PubMed:16906146, ECO:0000269|PubMed:16990800, ECO:0000269|PubMed:17139257, ECO:0000269|PubMed:18922472, ECO:0000269|PubMed:21303910}. |
| Subcellular location: | |
Cytoplasm {ECO:0000269|PubMed:18922472}. Nucleus {ECO:0000269|PubMed:18922472}. Note=Associates with the proteasome 19S subunit in the cytoplasm. Associates with the INO80 complex in the nucleus. |
| Similarity: | |
Belongs to the peptidase C12 family. {ECO:0000305}. |
Annotations taken from UniProtKB at the EBI.