title: Exon shuffling and intron insertion in serine protease genes.
mesh_terms: D000818:Animals; D001483:Base Sequence; D005075:Biological Evolution; D010450:Endopeptidases / Q000235:genetics*; D004815:Epidermal Growth Factor / Q000235:genetics; D006801:Humans; D012697:Serine Endopeptidases
chemical_list: D004815:Epidermal Growth Factor; D010450:Endopeptidases; D012697:Serine Endopeptidases