Recombinant Human Tetra-Ub/Ub4 WT Chains (K63/K48/K63), CF

Catalog # Availability Size / Price Qty
UCM-210-025
Product Details
Citations (1)
FAQs
Reviews

Recombinant Human Tetra-Ub/Ub4 WT Chains (K63/K48/K63), CF Summary

Product Specifications

Purity
>90%, by SDS-PAGE under reducing conditions and visualized by Colloidal Coomassie® Blue stain.
Activity
Ubiquitin chains vary in length, linkage, and function.Tetra-Ubiquitin Chains (Ub-K63-Ub-K48-Ub-K63-Ub) are ideal for investigating Ubiquitin-binding proteins and as substrates for Ubiquitin-specific isopeptidases. Reaction conditions will need to be optimized for each specific application. IMPORTANT: Heating this product in SDS-PAGE buffer or terminating reactions containing this product with heated SDS-PAGE buffer could lead to unexpected, high apparent molecular weight banding or smearing on gels that is not representative of product purity. For optimal results, we recommend incubation in SDS-PAGE buffer + DTT at <40 °C for 20 minutes prior to gel electrophoresis.
Source
E. coli-derived human Tetra-Ubiquitin protein
Accession #
Predicted Molecular Mass
34 kDa

Product Datasheets

Carrier Free

What does CF mean?

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.

What formulation is right for me?

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.

UCM-210

Formulation Lyophilized from a solution in deionized water.
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.
  • 24 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: Tetra-Ubiquitin

With a predicted molecular weight of 34 kDa, Tetra-Ubiquitin chains are composed of four 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 molecule (1). Each human Ubiquitin monomer is 76 amino acids (aa) in length and shares 96% and 100% aa 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).

Tetra-Ub can be used to investigate mechanisms of binding and recognition by deubiquitinating enzymes, E3 ligases or other proteins that contain Ubiquitin-associated domains (UBAs) or Ubiquitin-interacting motifs (UIMs). Tetra-Ub is the minimal unit necessary for recognition by the 26S Proteasome and contains structural characteristic (such as repeating hydrophobic patches) not present in di-Ub. This product is made with wild-type human recombinant Ubiquitin and linkage-specific enzymes, which results in one K48-linkage between two K63-linkages.

References
  1. Scheffner, M. et al. (1995) Nature 373:81.
  2. Sharp, P.M. & W.-H. Li (1987) Trends Ecol. Evol. 2:328.
  3. Behrends, C. & J.W. Harper (2011) Nat. Struct. Mol. Biol. 18:520.
  4. Greene, W. et al. (2012) PLoS Pathog. 8:e1002703.
  5. Henry, A.G. et al. (2012) Dev. Cell 23:519.
  6. Tong, X. et al. (2012) J. Biol. Chem. 287:25280.
  7. Wei, W. et al. (2004) Nature 428:194.
  8. Zhang, J. et al. (2012) J. Biol. Chem. 287:28646.
Entrez Gene IDs
7314 (Human)
Alternate Names
HEL-S-50; TetraUbiquitin; Tetra-Ubiquitin; Ub4; UBB; ubiquitin B

Citation for Recombinant Human Tetra-Ub/Ub4 WT Chains (K63/K48/K63), CF

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Vps13D Encodes a Ubiquitin-Binding Protein that Is Required for the Regulation of Mitochondrial Size and Clearance
    Authors: AL Anding, C Wang, TK Chang, DA Sliter, CM Powers, K Hofmann, RJ Youle, EH Baehrecke
    Curr. Biol., 2018;28(2):287-295.e6.
    Applications: Bioassay

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