Aliases for USP21 Gene
External Ids for USP21 Gene
Previous HGNC Symbols for USP21 Gene
Previous GeneCards Identifiers for USP21 Gene
This gene encodes a member of the C19 peptidase family, also known as family 2 of ubiquitin carboxy-terminal hydrolases. The encoded protein cleaves ubiquitin from ubiquitinated proteins for recycling in intracellular protein degradation. The encoded protein is also able to release NEDD8, a ubiquitin-like protein, from NEDD8-conjugated proteins. This gene has been referred to as USP16 and USP23 but is now known as USP21. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2016]
GeneCards Summary for USP21 Gene
USP21 (Ubiquitin Specific Peptidase 21) is a Protein Coding gene. Among its related pathways are Ubiquitin-Proteasome Dependent Proteolysis and Signaling by GPCR. GO annotations related to this gene include transcription coactivator activity and cysteine-type peptidase activity. An important paralog of this gene is USP2.
UniProtKB/Swiss-Prot for USP21 Gene
Deubiquitinates histone H2A, a specific tag for epigenetic transcriptional repression, thereby acting as a coactivator. Deubiquitination of histone H2A releaves the repression of di- and trimethylation of histone H3 at Lys-4, resulting in regulation of transcriptional initiation. Regulates gene expression via histone H2A deubiquitination (By similarity). Also capable of removing NEDD8 from NEDD8 conjugates but has no effect on Sentrin-1 conjugates (PubMed:10799498). Deubiquitinates BAZ2A/TIP5 leading to its stabilization (PubMed:26100909).