EZDetect™ Polyubiquitin Probe (Biotin conjugated)

EZDetect™ Polyubiquitin Probe (Biotin conjugated)

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Catalog# 6569

Size: 250 μl

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BioVision’s EZDetect™ Polyubiquitin Probe is ideal for detecting poly-ubiquitinated proteins in biological samples. Ubiquitin is a highly conserved 76-amino acid protein. It can be conjugated via its C-terminus to the amine groups of lysine residues on target proteins. This conjunction is referred to as monoubiquitylation. Additional ubiquitin moieties can be subsequently conjugated to this initial ubiquitin, utilizing any one of the seven lysine residues on the surface of ubiquitin. The formation of these ubiquitin chains is referred to as polyubiquitylation. Different types of polyubiquitin chains can form, depending on the internal lysine residue used for this conjugation. These polyubiquitin chains further can attach to proteins post-translationally and aid in numerous downstream activities like proteasome-mediated proteolysis, autophagy, DNA damage tolerance, inflammation, apoptosis, signal transduction etc. Several classes of Ubiquitin interacting proteins help in mediating these downstream effects. Ubiquitin Interacting Motifs (UIM) and Ubiquitin Associated Domains (UBA) are two large classes of such protein domains which strongly interact with polyubiquitin chains. We have developed an UIM-UBA chimeric protein from the UIM and UBA domains. Both these proteins are well-characterized for their high-affinity interaction with different types of polyubiquitin chains. The EZDetect™ Polyubiquitin Probe is synthesized through biotinylation of UIM-UBA with Sulfo-NHS-LC-Biotin (Cat # 2326). This biotin-UIM-UBA can be used to detect poly-ubiquitinated proteins by decreasing the interference from free monomeric ubiquitin which is highly abundant in biological samples.


Cat # +Size 6569-250
Size 250 μl
Highlights 250 µl (100 µg) of Biotin-UIM-UBA protein (0.4 mg/ml) in PBS with 0.1% Azide. Applications: • To detect the poly-ubiquitinated proteins in cell lysate/tissue homogenate using Dot blot. • To detect the poly-ubiquitinated proteins in cell lysate/tissue homogenate using Western blot. • In Immunocytochemistry / Immunohistochemistry studies to label / visualize intracellular poly-ubiquitinated proteins.
Storage Conditions 4°C
Shipping Conditions Gel Pack
USAGE For Research Use Only! Not For Use in Humans.


Can it also work to pull down mouse and rat calmodulin interacting proteins?
Protein blast search against the human Calmodulin sequence shows a 99% match with mouse (Mus musculus) calmodulin and a 100% match with rat (Rattus norvegicus) calmodulin. Thus the beads should be able to pulldown mouse and rat calmodulin interacting proteins.

Eli J. Rogers, An IQSEC2 Mutation Associated With Intellectual Disability and Autism Results in Decreased Surface AMPA Receptors. Front Mol Neurosci, Feb 2019; 30842726.

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