Recombinant Human UBE2I/UBC9 Protein
SKU: PKSH030701-100
Recombinant Human UBE2I/UBC9 Protein
SKU # | PKSH030701 |
Expression Host | E.coli |
Description
Synonyms | SUMO-Conjugating Enzyme UBC9, SUMO-Protein Ligase, UBC9, UBCE9, UBE2I, Ubiquitin Carrier Protein 9, Ubiquitin Carrier Protein I, Ubiquitin-Conjugating Enzyme E2 I, Ubiquitin-Protein Ligase I, p18 |
Species | Human |
Expression Host | E.coli |
Sequence | Met 1-Ser 158 |
Accession | P63279 |
Calculated Molecular Weight | 18.0 kDa |
Observed Molecular Weight | 18 kDa |
Tag | None |
Bio-activity | Not validated for activity |
Properties
Purity | > 90 % as determined by reducing SDS-PAGE. |
Endotoxin | Please contact us for more information. |
Storage | Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months. |
Shipping | This product is provided as lyophilized powder which is shipped with ice packs. |
Formulation | Lyophilized from sterile PBS, 10% glycerol, 2mM DTT, pH 7.4 Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
Reconstitution | Please refer to the printed manual for detailed information. |
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.