Abstract
A random hexapeptide library, cloned in bacteriophage, was used to select affinity peptides using nickel-nitrilotriacetic acid (Ni-NTA) columns. The screening protocol was successful by isolating peptides sharing common features and, in most cases, common amino acid sequences were isolated (e.g. WHHHPH, AQHHHH). Ni-NTA chromatography of the fusion phage of the selected peptides exhibited a more homogeneous elution behavior (i.e. elution in one peak) than the most commonly used His6peptide (elution in multiple peaks).
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