Ab for the detection of FLAG 25æL

This antibody is optimally suited for monitoring the expression of FLAG™ tagged fusion proteins.  As such, this antibody can be used to identify fusion proteins containing the FLAG™ epitope.  The antibody recognizes the epitope tag fused to the carboxy or amino- terminus of targeted proteins.  This antibody has been tested by ELISA and western blotting against both the immunizing peptide and FLAG™ containing recombinant proteins.  Although not tested, this antibody is likely functional for immunoprecipitation and immunocytochemistry, and other immunodetection techniques.  The epitope tag peptide sequence was first derived from the 11-amino-acid leader peptide of the gene-10 product from bacteriophage T7.  Now the most commonly used hydrophilic octapeptide is DYKDDDDK.  polyclonal antibody to detect FLAG™ conjugated proteins binds FLAG™ containing fusion proteins with greater affinity than the widely used monoclonal M1, M2 and M5 clones, and shows greater sensitivity in most assays.  Affinity purification of the polyclonal antibody results in very low background levels in assays and low cross-reactivity with other cellular proteins.