Title : A New Method for Quantitative Determination of Steroid Metabolites of Cytochrome P450-Dependent Reactions Using Fluorescent Spectroscopy.

Pub. Date : 2018 Nov

PMID : 30607725






4 Functional Relationships(s)
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1 A method for determination of hydroxylase activity of cytochrome P450 3A4 (CYP3A4) towards its substrate hydrocortisone using fluorescent analysis of the product was developed. Hydrocortisone cytochrome P450 family 3 subfamily A member 4 Homo sapiens
2 A method for determination of hydroxylase activity of cytochrome P450 3A4 (CYP3A4) towards its substrate hydrocortisone using fluorescent analysis of the product was developed. Hydrocortisone cytochrome P450 family 3 subfamily A member 4 Homo sapiens
3 6beta-hydroxycortisol, formed during CYP3A4-dependent electrocatalysis, has a characteristic fluorescent peak at lambda = 427 +- 2 nm after treating with the sulfuric acid : ethanol (3 : 1) mixture and excitation at lambda = 365 nm, which is different from the substrate (hydrocortisone) fluorescence (lambda = 525 +- 2 nm). Hydrocortisone cytochrome P450 family 3 subfamily A member 4 Homo sapiens
4 The developed analytical approach was used to determine the kinetic parameters of CYP3A4-dependent hydrocortisone hydroxylation. Hydrocortisone cytochrome P450 family 3 subfamily A member 4 Homo sapiens