The enzyme γ-humulene synthase normally generates a mixture of more than 50 sesquiterpene products from a single substrate. Targeted evolution allowed the design of new mutants with greatly enhanced product specificity. The results provide a model for the divergent evolution of enzyme specificity from ancestral proteins of promiscuous function.
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Cane, D. How to evolve a silk purse from a sow's ear. Nat Chem Biol 2, 179–180 (2006). https://doi.org/10.1038/nchembio0406-179
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DOI: https://doi.org/10.1038/nchembio0406-179