title: Enzymatic isomerization (delta 7 to delta 8) of the nuclear double bond of 14 alpha-alkyl substituted sterol precursors of cholesterol.
mesh_terms: D000693:Anaerobiosis; D000818:Animals; D002784:Cholesterol / Q000096:biosynthesis; D002849:Chromatography, Gas; D003460:Crystallization; D004875:Ergosterol / Q000031:analogs & derivatives / Q000378:metabolism; D007535:Isomerases / Q000378:metabolism*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008862:Microsomes, Liver / Q000201:enzymology*; D051381:Rats; D013055:Spectrophotometry, Infrared; D013251:Steroid Isomerases / Q000378:metabolism*; D013261:Sterols
chemical_list: D013261:Sterols; D002784:Cholesterol; D007535:Isomerases; D013251:Steroid Isomerases; C022669:delta(8)-delta(7)-sterol isomerase; D004875:Ergosterol