Cholesterol biosynthesis

The enzymatic reactions involved in the biosynthesis of cholesterol do not necessarily occur in a set order. Similar reactions occur in the formation of other C27 sterols and related compounds. Plant sterols are derived from cycloartenol. The initial stages are slightly different from the lanosterol pathway.

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Continued from lanosterol biosynthesis scheme

© IUBMB 2001

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lanosterol biosynthesis
side-chain modification scheme
rings B, C and D modification scheme
ring A modification scheme