| ergosterol | A steroid occurring in FUNGI. Irradiation with ULTRAVIOLET RAYS results in formation of ERGOCALCIFEROL (vitamin D2). |
| presqualene pyrophosphate | |
| isopentenyl pyrophosphate | substrate for isopentenyl pyrophosphate isomerase; RN given refers to unlabeled cpd; a nonpeptide mycobacterial antigen that stimulates gamma delta T cells |
| 5-diphosphomevalonic acid | RN given refers to ion(1-) |
| fecosterol | RN given refers to (3beta,5alpha)-isomer |
| 4,4-dimethylcholesta-8,14,24-trienol | a meiosis activating sterol; RN given refers to (5alpha,3beta)-isomer |
| 3-hydroxy-3-methylglutaryl-coenzyme a | RN given refers to cpd without isomeric designation |
| farnesyl pyrophosphate | a sesquiterpene that dimerizes to SQUALENE; RN given refers to cpd without isomeric designation |
| geranyl pyrophosphate | RN given refers to (E)-isomer |
| episterol | ergosterol precursor; RN given refers to (3beta,5alpha)-isomer |
| 2,3-oxidosqualene | an oxidized derivative of SQUALENE that can fold in several ways: chair-boat-chair-boat to LANOSTEROL; chair-chair-chair-boat to dammarane; or all chair to hopane and on to cycloartenol; RN given refers to (all-Z)-isomer |
| 4,4-dimethyl-5-alpha-cholesta-(8,24)-dien-3-beta-ol | RN given refers to (3beta,5alpha)-isomer |
| 32-oxolanosterol | found in mevalonate-treated cell cultures |
| 32-hydroxylanosterol | found in mevalonate-treated cell cultures |
| lanosterol | A triterpene that derives from the chair-boat-chair-boat folding of 2,3-oxidosqualene. It is metabolized to CHOLESTEROL and CUCURBITACINS. |
| mevalonic acid | A dihydroxy monocarboxylic acid and precursor in the biosynthetic pathway known as the mevalonate pathway, which produces terpenes and steroids that are vital for diverse cellular functions. |
| phosphomevalonate | |
| acetyl coenzyme a | Acetyl CoA participates in the biosynthesis of fatty acids and sterols, in the oxidation of fatty acids and in the metabolism of many amino acids. It also acts as a biological acetylating agent. |
| 3,3-dimethylallyl pyrophosphate | isomeric with isopentenyl pyrophosphate |
| zymosterol | a 4,14-desmethyl intermediate between LANOSTEROL and CHOLESTEROL |