title: Adaptive foci in protein evolution.
mesh_terms: D000483:Alleles; D000818:Animals; D005075:Biological Evolution; D004330:Drosophila / Q000201:enzymology*; D004798:Enzymes / Q000096:biosynthesis; D005787:Gene Frequency; D005796:Genes; D014644:Genetic Variation; D012641:Selection, Genetic; D013045:Species Specificity
chemical_list: D004798:Enzymes