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Human UBE2M Protein

hUbc12,UBC-RS2,UBC12

Catalog Number P13203-HNCE
Organism Species Human
Host E. coli
Synonyms hUbc12,UBC-RS2,UBC12
Molecular Weight The recombinant human UBE2M consists of 185 amino acids and has a calculated molecular mass of 21 kDa. It migrates as an approximately 20 kDa band in SDS-PAGE under reducing conditions.
predicted N Gly
SDS-PAGE
Purity > 90 % as determined by SDS-PAGE
Protein Construction A DNA sequence encoding the human UBE2M (P61081) (Met 1-Lys 183) was expressed and purified, with additional two amino acids (Gly & Pro) at the N-terminus.
Bio-activity
Research Area Epigenetics |Histone Modifying Enzymes |Ubiquitylation |Ubiquitin like Modifiers
Formulation Lyophilized from sterile PBS, 10% glycerol, 1mM DTT, pH 8.0
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background UBE2M is a member of the ubiquitin-conjugating E2 family whose members perform the second step in the ubiquitination reaction. Initially identified as the main process for protein degradation, ubiquitination is believed nowadays to be crucial for a wider range of cellular processes. The outcome of the ubiquitin-conjugation reaction, and thereby the fate of the substrate, is heavily dependent on the number of ubiquitin molecules attached and how these ubiquitin molecules are inter-connected. To deal with this complexity and to allow adequate ubiquitination in time and space, a highly sophisticated conjugation machinery has been developed. In a sequential manner, ubiquitin becomes activated by an ubiquitin-activating enzyme (E1), which then transfers the ubiquitin to a group of ubiquitin-conjugating enzymes (E2s). Next, ubiquitin-loaded E2s are interacting with ubiquitin protein ligases (E3s) and ubiquitin is conjugated to substrates on recruitment by the E3. These three key enzymes are operating in a hierarchical system, wherein two E1s and 35 E2s have been found and hundreds of E3s have been identified in humans. 
Reference
  • Sjoerd J L van Wijk, et al. (2009) A comprehensive framework of E2-RING E3 interactions of the human ubiquitin-proteasome system. Mol Syst Biol. 5: 317.
  • Nandi D, et al. (2006) The ubiquitin-proteasome system. Journal of biosciences. 31 (1): 137-55.