UBE2A is an E2 conjugation enzyme that is involved in the ubiquitylation of target substrates, along with E1 and E3 enzymes. UBE2A is a substrate for cyclin-dependent kinase 2 with phosphorylation of Ser120, dramatically increasing ubiquitin conjugating activity. During the cell cycle, peak phosphorylation of UBE2A coincides with peak ubiquitylation of histone H2B. Ubiquitylated H2B stimulates methylation of lysine 4 of histone H3. UBE2A and B are also involved in DNA lesion repair via recruitment of alternative polymerases to DNA. UBE2A has been implicated in regulating the ubiquitylation of aggregating proteins along with UBE2K and UBE2D2.
|Molecular Weight||18,309.5 Da|
|Quantity||0.8 nmol, 3.0 nmol|
|Formulation||50 mM Tris pH 7.5, 150 mM NaCl, 10 mM DTT, 10% glycerol|
|Storage||-80°C, avoid freeze/thaw cycles|