Bioconversion of pregnenolone to 1,4 androstadiene 3,17 dione by Arthrobacter simplex.
D000730:Androstadienes / Q000096:biosynthesis*; D001173:Arthrobacter / Q000378:metabolism*; D011284:Pregnenolone / Q000378:metabolism*
D000730:Androstadienes; C006573:1,4-androstadiene-3,17-dione; D011284:Pregnenolone