Resources » Technical Resource Centers » Peptide Technical Resources » Peptide Library Design Tools » Positional Scanning Library
A positional scanning library is an important tool for peptide sequence optimization. Amino acids of interest at a given position(s), are substituted with all other natural amino acids, one at a time. This allows for amino acids that enhance peptide activity to be identified.
In particular, positional scanning libraries have been used to identify T-cell epitopes from complex mixtures of proteins. In addition, this type of library can also be used to locate substrates with interdependent subsites with only minimum synthesis and screening.
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