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Findings suggest proteasome 26S subunit non-ATPase 14 (PSMD14) as a deubiquitinating enzyme to regulate Snail transcription factor (SNAIL) at the post-translational level and provide a promising therapeutic strategy against tumor metastasis of esophageal cancer.
POH1 knockdown induced cell apoptosis through increased expression of p53 and Bim.
overexpression of RPN11 in breast cancer tissues was associated with an advanced clinical stage. Patients with tumors with high expression of RPN11 had worse prognosis.
Deubiquitylase POH1 stabilizes E2F1 protein through binding to and deubiquitylating E2F1 in liver cancer.
The data demonstrated that proteasomal POH1 is a key de-ubiquitinating enzyme that regulates ubiquitin conjugates generated in response to damage and that several aspects of the DNA double-strand break response are regulated by the proteasome.
Disorder of POH1 expression is involved in the onset of idiopathic nephrotic syndrome (INS), and confers multidrug resistance in children with INS
Down-regulation of PSMD14 results in decreased cell proliferation, cell cycle arrest and senescence. A comparative study with PSMB5, revealed that PSMB5 and PSMD14 have different effects on cell cycle, senescence and associated molecular events.
Ectopic expression of POH1 in HEK293 cells decreased the level of c-Jun ubiquitination, leading to significant accumulation of the protein and a corresponding increase in AP1-mediated gene expression
An intact zinc metalloproteinase motif of Poh1 is essential for cell viability and 26S proteasome function.
Specificity for K63-linked polyubiquitin is a common property of the JAMM/MPN+ family of deubiquitinating enzymes.
Study thereby reveals that POH1-mediated deubiquitination of pro-IL-1beta is an important regulatory event that restrains inflammatory responses for the maintenance of immune homeostasis.
Conditional knockout of Poh1 alleles results in reduced E2F1 expression in primary mouse liver cells.
These results identify a novel mechanism of Mitf regulation in osteoclasts by POH1.
This gene encodes a component of the 26S proteasome. The 26S proteasome is a large multiprotein complex that catalyzes the degradation of ubiquitinated intracellular proteins. The encoded protein is a component of the 19S regulatory cap complex of the 26S proteasome and mediates substrate deubiquitination. A pseudogene of this gene is also located on the long arm of chromosome 2.
26S proteasome non-ATPase regulatory subunit 14
, 26S proteasome regulatory subunit rpn11
, 26S proteasome-associated PAD1 homolog 1
, 26S proteasome non-ATPase subunit
, 26S proteasome-associated pad1 homolog
, proteasome 26S subunit, non-ATPase 14
, proteasome (prosome, macropain) 26S subunit, non-ATPase, 14