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Substance Name: Cholesterol 27-hydroxylase
RN: 134712-57-5


  • An NAPH-dependent cytochrome P450 enzyme that catalyzes the oxidation of the side chain of sterol intermediates such as the 27-hydroxylation of 5-beta-cholestane-3-alpha,7-alpha,12-alpha-triol.

Molecular Formula

  • Unspecified
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Names and Synonyms

Name of Substance

  • Cholesterol 27-hydroxylase

MeSH Heading

  • Cytochrome P-450 CYP27A1


  • Cholesterol 27-hydroxylase
  • Cyp27A1
  • Steroid 27-monooxygenase
  • Sterol 27-hydroxylase

Systematic Names

  • 5beta-Cholestane-3alpha,7alpha,12alpha-triol 27-hydroxylase
  • Oxygenase, steroid 27-mono-

Registry Numbers

CAS Registry Number

  • 134712-57-5

Other Registry Number

  • 340805-67-6

System Generated Number

  • 0134712575