Description: The monoclonal antibody eBioP4D1 (p4D1) recognizes ubiquitin, a small 8Ka protein. Ubiquitin units are linked to proteins via a ubiquitination process, thereby signaling the protein for degradation by the 26S proteosome. The process of ubiquitination plays a role in differentiation, cell cycle progression, apoptosis and disease progression. For example, neuronal inclusions called Lewis bodies from Parkinson patients are rich in ubiquitin. Applications Reported: This eBioP4D1 (P4D1) antibody has been reported for use in immunoprecipitation, immunoblotting (WB), and immunohistochemical staining. Applications Tested: This eBioP4D1 (P4D1) antibody has been tested by immunblotting of treated cell lines. This can be used at less than or equal to 2 µg/mL. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest. Purity: Greater than 90%, as determined by SDS-PAGE. Aggregation: Less than 10%, as determined by HPLC. Filtration: 0.2 µm post-manufacturing filtered.Ubiquitin is a conserved 76 amino acid polypeptide and can affect proteasomal degradation of the protein it is bound to, or mediate interactions with other proteins related to post-translational modifications. The degradation of cellular regulatory proteins by the Uubiquitin pathway is important as it controls the cellular growth and proliferation. Ubiquitin-dependent proteolysis occurs after a covalent attachment of the peptide to a lysine residue of a protein, which involves three enzymatic reactions: E1, E2 and E3. The first reaction involves ubiquitin-activating enzyme. The third reaction uses enzyme ubiquitin ligase (E3) to transfer the activated ubiquitin from E2 to a lysine residue on a protein, or directly transfers the ubiquitin from E2 to the substrate.
|Immunohistochemistry, Immunoprecipitation, Western Blot|
|PBS with 0.09% sodium azide; pH 7.2|
For Research Use Only.
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