title: Positive selection in the evolution of mammalian interleukin-2 genes.
authors.forename: J
authors.initials: J
authors.lastname: Zhang
authors.forename: M
authors.initials: M
authors.lastname: Nei
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D016208:Databases, Factual; D019143:Evolution, Molecular; D006801:Humans; D007376:Interleukin-2 / Q000235:genetics*; D008322:Mammals / Q000235:genetics*; D008969:Molecular Sequence Data; D010802:Phylogeny; D012641:Selection, Genetic; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid
chemical_list: D007376:Interleukin-2