IP
For purification of N-terminal FLAG fusion proteins. Since binding is Ca2+ dependent, proteins can be eluted with a buffer containing EDTA, as well as by the standard methods using either FLAG peptide or glycine-HCl buffer, pH 3. ANTI-FLAG M1 does not bind to Met-FLAG fusion proteins, so this resin is not appropriate for purifying unprocessed, cytoplasmically expressed fusion proteins.
Affinity gel is for calcium mediated purification of N-terminal FLAG fusion proteins.
Elution - FLAG peptide, Glycine, pH 3.5 EDTA