This gene encodes a subunit of the BRCA1-BRCA2-containing complex (BRCC), which is an E3 ubiquitin ligase. This complex plays a role in the DNA damage response, where it is responsible for the stable accumulation of BRCA1 at DNA break sites. The component encoded by this gene can specifically cleave
Lys 63-linked polyubiquitin chains, and it regulates the abundance of these polyubiquitin chains in chromatin. The loss of this gene results in abnormal angiogenesis and is associated with syndromic moyamoya, a cerebrovascular angiopathy. Alternative splicing results in multiple transcript variants. A related pseudogene has been identified on chromosome 5. [provided by RefSeq, Jun 2011]
X
155071508
155123077
Human
194
symbol , old_gene_name , COSMIC , Human Proteome Map , old_gene_symbol
Predicted to enable GTPase activator activity. Involved in cell migration and positive regulation of Wnt signaling pathway. [provided by Alliance of Genome Resources, Jul 2025]