Article
Regulation of cytochrome b5 gene transcription by Sp3, GATA-6, and steroidogenic factor 1 in human adrenal NCI-H295A cells.
Molecular endocrinology (Baltimore, Md.) - 1 Aug 2005
Huang Ningwu, Dardis Andrea, Miller Walter L
Abstract excerpt
Sex steroid synthesis requires the 17,20 lyase activity of P450c17, which is enhanced by cytochrome b5, acting as an allosteric factor to promote association of P450c17 with its electron donor, P450 oxidoreductase. Cytochrome b5 is preferentially expressed in the fetal adrenal and postadrenarchal adrenal zona reticularis; the basis of this tissue-specific, developmentally regulated transcription of the b5 gene is...
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