This agarose-conjugated antibody is optimally suited for immunoprecipitation and purification of FLAG(TM) tagged fusion proteins. The antibody recognizes the epitope tag fused to either the amino- or carboxy- termini of targeted proteins. The epitope tag peptide sequence was first derived from the 11-amino-acid leader peptide of the gene-10 product from bacteriophage T7. DYKDDDDK is the most commonly used hydrophilic octapeptide tag. FLAG(TM) tag can be cleaved by the enterokinase because it contains the Enterokinase Cleavage Site (ECS). Do not use chaotropic reagents such as guanidine HCl; however urea may be used at less than 1M concentration. Do not use any reagent that contains reducing agents such as DTT, DTE, or 2-mercaptoethanol with this product. Do not exceed 5% concentration of TWEEN 20 or TRITON X-100 with this product. Do not exceed 0.1% IGEPAL CA-630 or CHAPS. Do not exceed 0.2% digitonin. Do not exceed 1.0 M sodium chloride. DO NOT USE deoxycholate with this product. DO NOT USE SDS. Keep exposure to glycine HCl to less than 20 minutes.
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