title: [Pathway of biosynthesis of androstadienone (delta 16-C19-steroid) from pregnenolone catalyzed by pig testicular microsomes].
mesh_terms: D000446:Aldehyde-Lyases / Q000378:metabolism*; D000730:Androstadienes / Q000096:biosynthesis*; D000818:Animals; D002384:Catalysis; D003577:Cytochrome P-450 Enzyme System / Q000378:metabolism*; D008297:Male; D008861:Microsomes / Q000201:enzymology*; D011284:Pregnenolone / Q000378:metabolism*; D013254:Steroid 17-alpha-Hydroxylase / Q000378:metabolism*; D013250:Steroid Hydroxylases / Q000378:metabolism*; D013552:Swine; D013737:Testis / Q000201:enzymology*
chemical_list: D000730:Androstadienes; C003524:4,16-androstadien-3-one; D011284:Pregnenolone; D003577:Cytochrome P-450 Enzyme System; D013250:Steroid Hydroxylases; D013254:Steroid 17-alpha-Hydroxylase; C022445:progesterone 17-alpha-hydroxylase; D000446:Aldehyde-Lyases