title: Nature teaches but can be bettered.
authors.forename: Lindsay D
authors.initials: LD
authors.lastname: Eltis
authors.forename: Stephen G
authors.initials: SG
authors.lastname: Withers
mesh_terms: D002384:Catalysis; D019020:Directed Molecular Evolution; D004798:Enzymes / Q000378:metabolism*; D023281:Genomics; D015202:Protein Engineering
chemical_list: D004798:Enzymes