1.1.1.145	3beta-hydroxy-DELTA5-steroid dehydrogenase	sitosterol degradation to androstenedione	-	
2.3.1.16	acetyl-CoA C-acyltransferase	sitosterol degradation to androstenedione	-	
2.3.1.176	propanoyl-CoA C-acyltransferase	sitosterol degradation to androstenedione	-	
5.3.3.1	steroid DELTA-isomerase	sitosterol degradation to androstenedione	-