Recombinant Human Poly-Ub WT Chains (2-7) (K48-linked), CF

Catalog # Availability Size / Price Qty
Product Details
Citations (8)
Supplemental Products

Recombinant Human Poly-Ub WT Chains (2-7) (K48-linked), CF Summary

Product Specifications

>95%, by SDS-PAGE under reducing conditions and visualized by Colloidal Coomassie® Blue stain
Ubiquitin chains vary in length, linkage, and function. K48-linked Poly-Ub WT Chains (Ub2-7) 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.
E. coli-derived human Poly-Ubiquitin protein
Accession #
Predicted Molecular Mass
17 kDa (Ub2), 26 kDa (Ub3), 34 kDa (Ub4), 43 kDa (Ub5), 52 kDa (Ub6), and 60 kDa (Ub7)

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.


Formulation Lyophilized from a solution in deionized water.
Reconstitution Reconstitute at 2 mg/mL in an aqueous solution.
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.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 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.


Background: Poly-Ubiquitin

Poly-Ubiquitin chains are composed of 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).

Linkage specific poly-ubiquitin chains are used to investigate mechanisms of chain recognition, binding and hydrolysis by the proteasome, deubiquitinating enzymes, E3 ligases or other proteins that contain ubiquitin-associated domains (UBAs) or ubiquitin-interacting motifs (UIMs). Lys48-linked chains are abundant in vivo and act as a universal signal for proteasomal degradation. This product is formed with wild-type human recombinant ubiquitin and linkage-specific enzymes.This mixture of poly-ubiquitin chains contains di-ubiquitin and higher MW species; monoubiquitin has been removed.

  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.
Alternate Names
CEP80; HEL112; PolyUbiquitin; Poly-Ubiquitin; ribosomal protein S27a; RPS27A; S27A; UBA80; UBC; UBCEP1; UBCEP80

Citations for Recombinant Human Poly-Ub WT Chains (2-7) (K48-linked), 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.

8 Citations: Showing 1 - 8
Filter your results:

Filter by:

  1. A Mycobacterium tuberculosis surface protein recruits ubiquitin to trigger host xenophagy
    Authors: Q Chai, X Wang, L Qiang, Y Zhang, P Ge, Z Lu, Y Zhong, B Li, J Wang, L Zhang, D Zhou, W Li, W Dong, Y Pang, GF Gao, CH Liu
    Nat Commun, 2019;10(1):1973.
    Species: Transgenic Bacteria
    Sample Types: Whole Cells
    Applications: Binding Assay
  2. Denisovan, modern human and mouse TNFAIP3 alleles tune A20 phosphorylation and immunity
    Authors: NW Zammit, OM Siggs, PE Gray, K Horikawa, DB Langley, SN Walters, SR Daley, C Loetsch, J Warren, JY Yap, D Cultrone, A Russell, EK Malle, JE Villanueva, MJ Cowley, V Gayevskiy, ME Dinger, R Brink, D Zahra, G Chaudhri, G Karupiah, B Whittle, C Roots, E Bertram, M Yamada, Y Jeelall, A Enders, BE Clifton, PD Mabbitt, CJ Jackson, SR Watson, CN Jenne, LL Lanier, T Wiltshire, MH Spitzer, GP Nolan, F Schmitz, A Aderem, BT Porebski, AM Buckle, DW Abbott, JB Ziegler, ME Craig, P Benitez-Ag, J Teo, SG Tangye, C King, M Wong, MP Cox, W Phung, J Tang, W Sandoval, IE Wertz, D Christ, CC Goodnow, ST Grey
    Nat. Immunol., 2019;20(10):1299-1310.
    Species: Human
    Sample Types: Recombinant Protein
    Applications: Bioassay
  3. COPI mediates recycling of an exocytic SNARE by recognition of a ubiquitin sorting signal
    Authors: P Xu, HM Hankins, C MacDonald, SJ Erlinger, MN Frazier, NS Diab, RC Piper, LP Jackson, JA MacGurn, TR Graham
    Elife, 2017;6(0):.
    Species: Human
    Sample Types: Recombinant Protein
    Applications: Bioassay
  4. Receptor oligomerization guides pathway choice between proteasomal and autophagic degradation
    Authors: K Lu, F den Brave, S Jentsch
    Nat. Cell Biol., 2017;0(0):.
  5. A PALB2-interacting domain in RNF168 couples homologous recombination to DNA break-induced chromatin ubiquitylation
    Authors: MS Luijsterbu, D Typas, MC Caron, WW Wiegant, D van den He, RA Boonen, AM Couturier, LH Mullenders, JY Masson, H van Attiku
    Elife, 2017;6(0):.
    Species: N/A
    Sample Types: Protein
    Applications: Bioassay
  6. A ubiquitin-dependent signalling axis specific for ALKBH-mediated DNA dealkylation repair
    Authors: JR Brickner, JM Soll, PM Lombardi, CB Vågbø, MC Mudge, C Oyeniran, R Rabe, J Jackson, ME Sullender, E Blazosky, AK Byrum, Y Zhao, MA Corbett, J Gécz, M Field, A Vindigni, G Slupphaug, C Wolberger, N Mosammapar
    Nature, 2017;551(7680):389-393.
    Species: Human
    Sample Types: Recombinant Protein
    Applications: Bioassay
  7. Ubiquitin-specific proteases 25 negatively regulates virus-induced type I interferon signaling.
    Authors: Zhong H, Wang D, Fang L, Zhang H, Luo R, Shang M, Ouyang C, Ouyang H, Chen H, Xiao S
    PLoS ONE, 2013;8(11):e80976.
    Species: Human
    Sample Types: Recombinant Protein
    Applications: Bioassay
  8. Non-covalent interaction between polyubiquitin and GTP cyclohydrolase 1 dictates its degradation.
    Authors: Zhao, Yu, Zhu, Huaiping, Zou, Ming-Hui
    PLoS ONE, 2012;7(9):e43306.
    Species: N/A
    Sample Types: Protein
    Applications: Bioassay


No product specific FAQs exist for this product, however you may

View all Proteins and Enzyme FAQs

Reconstitution Buffers

Reviews for Recombinant Human Poly-Ub WT Chains (2-7) (K48-linked), CF

There are currently no reviews for this product. Be the first to review Recombinant Human Poly-Ub WT Chains (2-7) (K48-linked), CF and earn rewards!

Have you used Recombinant Human Poly-Ub WT Chains (2-7) (K48-linked), CF?

Submit a review and receive an Amazon gift card.

$25/€18/£15/$25CAN/¥75 Yuan/¥1250 Yen for a review with an image

$10/€7/£6/$10 CAD/¥70 Yuan/¥1110 Yen for a review without an image

Submit a Review