Aliases for UBE2B Gene
External Ids for UBE2B Gene
Previous GeneCards Identifiers for UBE2B Gene
The modification of proteins with ubiquitin is an important cellular mechanism for targeting abnormal or short-lived proteins for degradation. Ubiquitination involves at least three classes of enzymes: ubiquitin-activating enzymes, or E1s, ubiquitin-conjugating enzymes, or E2s, and ubiquitin-protein ligases, or E3s. This gene encodes a member of the E2 ubiquitin-conjugating enzyme family. This enzyme is required for post-replicative DNA damage repair. Its protein sequence is 100% identical to the mouse, rat, and rabbit homologs, which indicates that this enzyme is highly conserved in eukaryotic evolution. [provided by RefSeq, Jul 2008]
GeneCards Summary for UBE2B Gene
UBE2B (Ubiquitin Conjugating Enzyme E2 B) is a Protein Coding gene. Diseases associated with UBE2B include aggressive systemic mastocytosis. Among its related pathways are Immune System and DNA Double-Strand Break Repair. GO annotations related to this gene include ligase activity and ubiquitin protein ligase binding. An important paralog of this gene is UBE2A.
UniProtKB/Swiss-Prot for UBE2B Gene
Accepts ubiquitin from the E1 complex and catalyzes its covalent attachment to other proteins. In association with the E3 enzyme BRE1 (RNF20 and/or RNF40), it plays a role in transcription regulation by catalyzing the monoubiquitination of histone H2B at Lys-120 to form H2BK120ub1. H2BK120ub1 gives a specific tag for epigenetic transcriptional activation, elongation by RNA polymerase II, telomeric silencing, and is also a prerequisite for H3K4me and H3K79me formation. In vitro catalyzes Lys-11-, as well as Lys-48- and Lys-63-linked polyubiquitination. Required for postreplication repair of UV-damaged DNA. Associates to the E3 ligase RAD18 to form the UBE2B-RAD18 ubiquitin ligase complex involved in mono-ubiquitination of DNA-associated PCNA on Lys-164. May be involved in neurite outgrowth.