User:Herb5902/StAR

• The steroidogenic acute regulatory protein (StAR) is a transport protein
  • regulates cholesterol transfer within the mitochondria, which is
    • the rate-limiting step in the production of steroid hormones.
• The rate-limiting stage of steroidogenesis is cholesterol delivery to the inner mitochondrial membrane, where it is converted by cytochrome P450scc into pregnenolone, a common precursor of all steroid hormones