Steroid skeleton of lanosterol. The total number of carbons (30) reflects its triterpenoid origin. In some steroids some carbons may be removed (such as carbon 18) or added (such as carbons 241 and 242) in downstream biosynthetic reactions.

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Steroid skeleton of lanosterol. The total number of carbons (30) reflects its triterpenoid origin. In some steroids some carbons may be removed (such as carbon 18) or added (such as carbons 241 and 242) in downstream biosynthetic reactions.



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