Chemical mutagenesis: selective post-expression interconversion of protein amino acid residues.
The ability to alter protein structure by site-directed mutagenesis has revolutionized biochemical research. Controlled mutations at the DNA level, before protein translation, are now routine. These techniques allow specific, high fidelity interconversion largely between 20 natural, proteinogenic amino acids. Nonetheless, there is a need to incorporate other amino acids, both natural and unnatural, that are not accessible using standard site-directed mutagenesis and expression systems. Post-t...Expand abstract
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