Home  >  Products  >  UbcH3, Active, Recombinant, Human, 6-His-tag (Ubiquitin-conjugating Enzyme E2 R1, Ubiquitin-conjugating Enzyme E2-32kD Complementing, Ubiquitin-conjugating Enzyme E2-CDC34, Ubiquitin-protein Ligase R1, CDC34, UBE2R1)
UbcH3, Active, Recombinant, Human, 6-His-tag (Ubiquitin-conjugating Enzyme E2 R1, Ubiquitin-conjugating Enzyme E2-32kD Complementing, Ubiquitin-conjugating Enzyme E2-CDC34, Ubiquitin-protein Ligase R1, CDC34, UBE2R1)

UbcH3, Active, Recombinant, Human, 6-His-tag (Ubiquitin-conjugating Enzyme E2 R1, Ubiquitin-conjugating Enzyme E2-32kD Complementing, Ubiquitin-conjugating Enzyme E2-CDC34, Ubiquitin-protein Ligase R1, CDC34, UBE2R1)

Cat no: 029631

Supplier: United States Biological
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Ubiquitin-conjugating (E2) enzymes are characterized by the presence of a highly conserved ubiquitin-conjugating domain which accommodates ATP-activated ubiquitin (Ub) via a covalently linked thioester onto its active-site residue. E2 enzymes act via selective protein-protein interactions with the ubiquitin-activating E1 enzyme and ubiquitin ligase E3 enzymes and are able to differentiate effects on downstream substrates, either with a single Ub molecule or an Ub chain. While E3s are involved in substrate selection, E2s are the main determinants for selection of the lysine to construct Ub chains, which thereby directly control the cellular fate of the substrate. UbcH3 has been shown to interact with a number of different E3 ligases, including SCFSkp2/Cks1, promoting the ubiquitination of p27 and SCFBTrCP1, promoting the ubiquitination of B-catenin and Ikba. Source: Recombinant corresponding to full length human UbcH3, fused to 6His-tag at N-terminal HA, expressed in E.coli. Molecular Weight: ~29kD Storage and Stability: Aliquot to avoid repeated freezing and thawing and store at -70 degrees C. Aliquots are stable for 6 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Catalogue number: 029631
Size: 10ug
Form: Supplied as a liquid in 50mM Tris/HCl pH7.5, 300mM sodium chloride, 0.1mM EGTA, 0.03% Brij-35, 270mM sucrose, 1mM benzamidine, 0.2mM PMSF, 0.1% 2-mercaptoethanol.
Purity: ~84.2% (SDS-PAGE, Coomassie blue staining)
References: 1. Sadowski M. and Sarcevic B. Mechanisms of Mono- and Poly-Ubiquitination: ubiquitination specificity depends on compatibility between the E2 catalytic core and amino acid residues proximal to the lysine. Cell Division, 5: 19, 2010. 2. Semplici F. et al. CK2-Dependent Phosphorylation of the E2 Ubiquitin Conjugating Enzyme UBC3B Induces its Interaction with b-TrCP and Enhances b-catenin Degradation. Oncogene, 21: 3978-3987, 2002. 3. Wenzel D.M. et al. E2s: Structurally Economical and Functionally Replete. Biochem. J., 443: 31-42, 2011. 4. van Wijk S. J. L and Timmers H. T. M. The Family of Ubiquitin-Conjugating Enzymes (E2s):deciding between life and death of proteins. The FASEB Journal, 24: 981-993, 2010. 5. Xu S. et al. Substrate Recognition and Ubiquitination of SCFSkp2/Cks1 Ubiquitin-Protein Isopeptide Ligase. J Biol Chem. 282: 15462-15470, 2007. 6. Strack P. et al. SCFb-TRCP and Phosphorylation Dependent Ubiquitination of IkBa Catalyzed by Ubc3 and Ubc4. Oncogene, 19: 3529-3536, 2000.

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