Incorporation of alpha-aminobutyric acid into ergostine by Claviceps purpurea.
D000613:Aminobutyrates / Q000378:metabolism*; D002967:Claviceps / Q000378:metabolism*; D004876:Ergot Alkaloids / Q000096:biosynthesis*
D000613:Aminobutyrates; D004876:Ergot Alkaloids; C012223:alpha-aminobutyric acid; C030479:ergostine