Английская Википедия:22R-Hydroxycholesterol

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Версия от 18:16, 25 декабря 2023; EducationBot (обсуждение | вклад) (Новая страница: «{{Английская Википедия/Панель перехода}} {{DISPLAYTITLE:22''R''-Hydroxycholesterol}} {{Chembox | ImageFile = 22R-Hydroxycholesterol.svg | ImageSize = 200px | IUPACName = (22''R'')-Cholest-5-ene-3β,22-diol | SystematicName = (1''R'',3a''S'',3b''S'',7''S'',9a''R'',9b''S'',11a''S'')-1-[(2''S'',3''R'')-3-Hydroxy-6-methylheptan-2-yl]-9a,11a-dimethyl-2,3,3a,3b,4,6,7,8,9,9a,9b,10,11,11a-tetradecahydro-1''H''-cyclopenta[''a'']phenan...»)
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Шаблон:Chembox

22R-Hydroxycholesterol, or (3β)-cholest-5-ene-3,22-diol is an endogenous, metabolic intermediate in the biosynthesis of the steroid hormones from cholesterol.[1][2] Cholesterol ((3β)-cholest-5-en-3-ol) is hydroxylated by cholesterol side-chain cleavage enzyme (P450scc) to form 22R-hydroxycholesterol, which is subsequently hydroxylated again by P450scc to form 20α,22R-dihydroxycholesterol, and finally the bond between carbons 20 and 22 is cleaved by P450scc to form pregnenolone ((3β)-3-hydroxypregn-5-en-20-one),[1][2] the precursor to the steroid hormones.

It is an agonist of the liver X receptor.

See also

References

Шаблон:Reflist

Шаблон:Cholesterol and steroid intermediates Шаблон:Steroid hormones Шаблон:FXR and LXR modulators


Шаблон:Metabolism-stub Шаблон:Steroid-stub