Tchem UBE2B Ubiquitin-conjugating enzyme E2 B

Protein Summary

Description

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. 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]

Uniprot Accession IDs

• P63146
• B2R503
• D3DQA2
• P23567
• Q4PJ15
• Q9D0J6

Gene Name

• UBE2B

Ensembl ID

• ENST00000265339
• ENSP00000265339
• ENSG00000119048

Symbol

• RAD6B
• HR6B
• UBC2
• HHR6B
• RAD6B
• E2-17kDa

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
transcription factor perturbation	1
virus perturbation	1
biological process	0.99
disease perturbation	0.96
molecular function	0.95

Protein Classes

No PANTHER Classes or DTO Classes found

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 73.33   (req: < 5)

Gene RIFs: 33   (req: <= 3)

Antibodies: 234   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 73.33   (req: >= 5)

Gene RIFs: 33   (req: > 3)

Antibodies: 234   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 34

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 1

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0