This pathway describes the mevalonate arm of the cholesterol biosynthesis pathway within different cellular regions. This pathway is also known as the isoprenoid pathway or HMG-CoA reductase pathway, and is an essential metabolic pathway present in eukaryotes, archaea, and some bacteria. This pathway produces two five-carbon building blocks (isopentenyl pyrophosphate (IPP) and dimethylallyl pyrophosphate (DMAPP)), which are the precursors for various isoprenoids, a compound class containing cholesterol, vitamin K, coenzyme Q10, and all steroid hormones. View more details on which drugs are related to these reactions at [https://www.wikipathways.org/index.php/Pathway:WP4189 WP4189]. View the broader scope of cholesterol metabolism at [https://www.wikipathways.org/index.php/Pathway:WP430 WP430]. he mevalonate arm of the cholesterol biosynthesis pathway for different cellular regions. [LINE:idcb754a6f] Invalid interaction type. [LINE:d3c8b] Invalid interaction type. [LINE:c24ca] Invalid interaction type. [LINE:id591e2a10] Invalid interaction type. [-:-] Miriam data (PUBMED: 23898905) for idf9c676ff already exists. Ignoring... [Complex:e50d1] Empty element is invalid