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.,UBE2B, E2-17 kDa, HHR6B, HR6B, RAD6B, UBC2, ubiquitin-conjugating enzyme E2 B,Epigenetics & Nuclear Signaling,Chromatin Modifying Enzymes,Ubiquitination,DNA Damage & Repair,Cancer,Cell Biology & Developmental Biology,Ubiquitin,Ubiquitin-Proteasome Signaling Pathway,Endocrine & Metabolism,Nucleotide metabolism,Purine and pyrimidine synthesis,UBE2B