title: Positive darwinian selection in evolution of protein inhibitors of serine proteinases.
mesh_terms: D000595:Amino Acid Sequence; D005075:Biological Evolution; D007700:Kinetics; D008957:Models, Genetic; D008962:Models, Theoretical; D008969:Molecular Sequence Data; D011480:Protease Inhibitors / Q000235:genetics*; D011506:Proteins / Q000235:genetics* / Q000378:metabolism; D012641:Selection, Genetic; D015842:Serine Proteinase Inhibitors
chemical_list: D011480:Protease Inhibitors; D011506:Proteins; D015842:Serine Proteinase Inhibitors