Identification of the target epitope is important for characterization of a monoclonal antibodies. Epitope tags are short, linear antibody recognition sequences that enable detection of tagged fusion proteins by antibodies. Over the years, a wide range of anti-tag antibodies have been developed and each one of these offer unique advantages and disadvantages. Epitope tags can undergo post-translational modifications, such as phosphorylation and glycosylation in cells and cause an increase in the molecular mass of the fused protein, which can result in changes in gel mobility. Epitope tags of smaller number of amino acid residues are advantageous in that they exhibit minimal side effects on structure and function of fused target protein. A Myc tag can be used in many different immunoassays and is useful when there is no antibody against the protein of interest. Adding a Myc-tag permits the detection of such proteins with an antibody against the Myc epitope. Clone 4A6 is an antibody that recognizes ten amino acid sequence EQKLISEEDL (Glu-Gln-Lys-Leu-Iso-Ser-Glu-Glu-Asp-Leu) corresponding to the C-terminal region of human c-Myc protein (UniProt: P01106). Unlike other clones whose performance may be affected when Myc tag sequence is followed by smaller neutral amino acids, Clone 4A6 offers much more consistent detection of Myc-tagged proteins irrespective of any changes in neighboring amino acid sequences. (Ref. Schuchner, S., et al. (2020). Sci. Signal. 13(616); eaax9730; Charest-Morin, X., et al. (2013). Front. Pharmacol. 4: 122).
Recognizes recombinant proteins containing the Myc epitope tag (EQKLISEEDL) in a variety of sequence contexts; also recognizes human Myc.
peptide corresponding to amino acids 410-420 (MEQKLISEEDL) of human Myc
Anti-Myc Tag, clone 4A6, is a mouse monoclonal antibody that is validated for use in ChIP, IC, IF, IP and WB for the detection of Myc Tag and does not show the very high context sensitivity of 9E10. This antibody has been cited in over 480 publications.
Epitope Tags & General Use
Research Sub Category
routinely evaluated by immunoblot on Myc-tagged recombinant protein in sequence contexts not well recognized by anti-Myc Tag, clone 9E10 (Catalogue No. CBL430)
Predicted MW for human Myc: 49 kDa
Protein A Purified immunoglobulin in 0.1M Tris-Glycine, 0.15M NaCl, 0.05 Sodium Azide, pH 7.4.
Protein G Purified
Storage and Stability
Maintain at 2 to 8°C for 1 year from date of shipment.
Positive control for human Myc: Widespread expression including A431 cell lysate, ovarian cancer cell lysate, or breast carcinoma tissue. Myc fusion protein expressed in cells.
Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.
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