Title : Regulation of cholesterol 7 alpha-hydroxylase in the liver. Cloning, sequencing, and regulation of cholesterol 7 alpha-hydroxylase mRNA.

Pub. Date : 1990 Jul 15

PMID : 1694852






3 Functional Relationships(s)
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1 Monospecific antibody against purified rat liver cholesterol 7 alpha-hydroxylase cytochrome P-450 was used to screen a lambda gt11 cDNA library constructed from immuno-enriched polysomal RNA of cholestyramine-treated female rat liver. Cholestyramine Resin cytochrome P450 family 7 subfamily A member 1 Rattus norvegicus
2 Cholesterol 7 alpha-hydroxylase mRNAs were induced 2- to 3-fold in rat liver by cholestyramine treatment. Cholestyramine Resin cytochrome P450 family 7 subfamily A member 1 Rattus norvegicus
3 These experiments suggest that the induction of cholesterol 7 alpha-hydroxylase activity by cholestyramine or cholesterol and inhibition of cholesterol 7 alpha-hydroxylase activity by bile acid feedback are results of the rapid turnover of cholesterol 7 alpha-hydroxylase enzyme and mRNA levels. Cholestyramine Resin cytochrome P450 family 7 subfamily A member 1 Rattus norvegicus