Reprogramed nonribosomal peptide synthetase incorporates amino acids with reactive sites for 'click' chemistry

(Phys.org) —A single targeted mutation is enough to alter a natural peptide system so that it also incorporates non-natural amino acids into peptides, report Swiss scientists in the journal Angewandte Chemie. The mutation increases the size of the binding cavity in one domain of the system, which changes the substrate specificity. The researchers are thus able to incorporate amino acids with a specific reactive group that can later be used to easily modify the peptide.

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