The Mevalonate Pathway

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The Mevalonate pathway, also known as the Isoprenoid pathway or HMG-CoA reductase pathway is an essential metabolic pathway present in eukaryotes, archaea, and some bacteria.[1] The pathway produces two five-carbon building blocks called isopentenyl pyrophosphate (IPP) and dimethyl allyl pyrophosphate (DMAPP), which are used to make isoprenoids, a diverse class of over 30,000 biomolecules such as cholesterol, heme, vitamin K, coenzyme Q10, and all steroid hormones.[2]
The mevalonate pathway begins with acetyl-CoA and ends with the production of IPP and DMAPP.[3] It is best known as the target of statins, a class of cholesterol lowering drugs. The drug Lipitor (Atorvastatin) inhibits HMG-CoA reductase within the mevalonate pathway.

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