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Human UBE2I Protein

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Human UBE2I Protein Product Information
Synonym:C358B7.1, P18, UBC9
Protein Construction:A DNA sequence encoding the human UBE2I (P63279) (Met 1-Ser 158) was expressed and purified, with additional two amino acids (Gly & Pro) at the N-terminus.
Expressed Host:E. coli
Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Human UBE2I Protein QC Testing
Purity:> 90 % as determined by SDS-PAGE
Endotoxin:Please contact us for more information.
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Gly
Molecule Mass:The recombinant human UBE2I consists of 160 amino acids and migrates as an approximately 18 kDa band in SDS-PAGE under reducing conditions as predicted.
Formulation:Lyophilized from sterile PBS, 10% glycerol, 2mM DTT, pH 7.4
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
Human UBE2I Protein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Human UBE2I Protein SDS-PAGE
Human UBE2I Protein SDS-PAGE
Other UBE2I Recombinant Protein Products
UBE2I Background

UBE2I 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. 

Human UBE2I References
  • 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.
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    Catalog: 13205-HNCE-50
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    • Human UBE2I Protein SDS-PAGE
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    All information of our products is subject to change without notice. Please refer to COA enclosed in shipped package for the newest information.