The 3X FLAG system improves upon the original system by fusing 3 tandem FLAG epitopes to a recombinant protein (Fig. 1). A 10-20 fold increased detection enhancement has been shown using 3X FLAG fusions (Fig. 2, 3). As with the original FLAG tag, it is hydrophilic, contains an enterokinase cleavage site and is relatively small (22 amino acids), therefore, the risk of altering protein function, blocking other epitopes or decreasing the solubility is minimized.
The 3X FLAG system improves upon the original system by fusing 3 tandem FLAG epitopes to a recombinant protein (Fig. 1). A 10-20 fold increased detection enhancement has been shown using 3X FLAG fusions (Fig. 2, 3). As with the original FLAG tag, it is hydrophilic, contains an enterokinase cleavage site and is relatively small (22 amino acids), therefore, the risk of altering protein function, blocking other epitopes or decreasing the solubility is minimized.
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