Recombinant Human Tri-Ub Non-hydrolyzable (K48-linked), CF Summary
Each Ubiquitin contains a Pro substitution at position 73.
Product Datasheets
Carrier Free
CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins.Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration.The carrier free version does not contain BSA.
In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard.In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
UCN-215
| Formulation | Lyophilized from a solution in deionized water. |
| Reconstitution | Reconstitute at 2 mg/ml in an aqueous buffer. |
| Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage: | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Reconstitution Calculator
Background: Tri-Ubiquitin
With a predicted molecular weight of 26 kDa, tri-Ubiquitin chains are composed of three Ubiquitin monomers that are covalently linked through isopeptide bonds, which typically form between a lysine residue of one Ubiquitin molecule and the C-terminal glycine residue of another Ubiquitin (1). Each human Ubiquitin monomer is 76 amino acids (aa) in length and shares 96% and 100% aa sequence identity with yeast and mouse Ubiquitin, respectively (2). Seven of the 76 aa in Ubiquitin are lysine residues that can participate in poly-Ubiquitin chain formation. Linkage through specific lysine residues is thought to serve as a signal that affects protein degradation, signaling, trafficking, and other cellular processes (3-8).
Linkage specific, non-hydrolyzable tri-Ubiquitin is resistant to the activity of deubiquitinatingenzymes (DUB"s) that cleave the isopeptide linkage between adjacent Ubiquitin molecules. It can be used to investigate binding interactions between tri-Ubiquitin and proteins that contain elements such as Ubiquitin-associated domains (UBAs) or Ubiquitin-interacting motifs (UIMs). This product may also be useful in exploring the role of unanchored poly-Ubiquitin chains in some signaling pathways.
- Scheffner, M. et al. (1995) Nature 373:81.
- Sharp, P.M. & W.-H. Li (1987) Trends Ecol. Evol. 2:328.
- Behrends, C. & J.W. Harper (2011) Nat. Struct. Mol. Biol. 18:520.
- Greene, W. et al. (2012) PLoS Pathog. 8:e1002703.
- Henry, A.G. et al. (2012) Dev. Cell 23:519.
- Tong, X. et al. (2012) J. Biol. Chem. 287:25280.
- Wei, W. et al. (2004) Nature 428:194.
- Zhang, J. et al. (2012) J. Biol. Chem. 287:28646.
FAQs
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Reconstitution Buffers
Reconstitution Buffer 1 (PBS)
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