UM101-200µg Anti-Ub Tube1, GST

UM411: UbiTest Agarose-TUBE Elution Kit

$775.00

In stock

SKU: UM-0411-1000 Category: Tag:

Specifications

The UbiTest kit determines whether or not a target protein is poly-ubiquitinated. This powerful platform is an improvement on the most common method for investigating protein ubiquitination: immunoprecipitation and Western blot analysis. However, the substrate antibody often interacts differently with the poly-ubiquitinated forms of the substrate in the immuno-blotting step. This is due to epitope masking, reduced affinity, or changes in selectivity. A more definitive method for demonstrating protein ubiquitination is to couple immunoprecipitation with digestion by a broad spectrum deubiquitinase (DUB) prior to immunoblot analysis. An increased signal for the protein of interest (POI) after DUB treatment is a clear indication that the protein was ubiquitinated even if there was no clear reactivity in the untreated sample. To avoid potential problems arising from changes in immunoreactivity of the POI, the UbiTest assay utilizes TUBEs to pull-down the poly-ubiquitinated proteins. TUBEs (Tandem Ubiquitin Binding Entities) are engineered tandem ubiquitin-binding domains with dissociation constants for tetra-ubiquitin in the nanomolar range. TUBE1 has been demonstrated to bind to all 8 linkage types.

This product is protected by one or more US or Foreign patents. Please read the Limited Use Label License to learn more. By purchasing this product, the purchaser agrees to comply with these terms.

Kit Components:

Tube 1 Anti-Ub-TUBE1 – 1 mL of a 50% slurry
Buffer: PBS, pH 7.2, 20% ethanol
Storage: -20°C. Avoid storage at lower temperature. Small batches of equilibrated resin can be stored at 4°C for up to 1 week.
Tube 2  Elution wash buffer – 2 mL
Tube 3  Elution buffer – 1 mL
Tube 4  Neutralization buffer (10X) – 0.5 mL
Tube 5  Broad Spectrum DUB 25 µg, 10 µM

Storage:   -80°C

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Applications

  • A convenient one-step pull-down of poly-ubiquitinated proteins from cell and tissue extracts
  • Isolate poly-ubiquitinated proteins for proteomic studies
  • Confirmation of target protein poly-ubiquitination
  • Real proof of poly-ubiquitination – no mass spec needed
  • Easy comparison of polyubiquitin levels between treated samples
  • Easy screening for multiple POIs
  • No substrate purification needed

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