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Metalloprotease component of the 26S proteasome that specifically cleaves 'Lys-63'-linked polyubiquitin chains. The 26S proteasome is involved in the ATP-dependent degradation of ubiquitinated proteins. Plays a role in response to double-strand breaks (DSBs): acts as a regulator of non-homologous end joining (NHEJ) by cleaving 'Lys-63'-linked polyubiquitin, thereby promoting retention of JMJD2A/KDM4A on chromatin and restricting TP53BP1 accumulation. Also involved in homologous recombination repair by promoting RAD51 loading.
Gene Name: | proteasome (prosome, macropain) 26S subunit, non-ATPase, 14 |
Synonyms: | PSMD14, PAD1, POH1, RPN11 |
Target Sequences: | NM_005805 NP_005796.1 O00487 |
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