steroid 21-monooxygenase

steroid 21-monooxygenase
ster·oid 21-mono·oxy·gen·ase (sterґoid mon″o-okґsə-jən-ās) [EC 1.14.99.10] an enzyme of the oxidoreductase class that catalyzes the NADPH-dependent hydroxylation of steroids at the 21 position. The enzyme is a microsomal cytochrome P-450, requires a flavoprotein for reducing equivalents, and is part of the steroid hormone synthesis system. Deficiency of the enzyme, an autosomal recessive trait, inhibits conversion of 17-hydroxyprogesterone to 11-deoxycortisol; it is called 21-hydroxylase deficiency (q.v.) and causes congenital adrenal hyperplasia (type III). Called also 21-hydroxylase.

Medical dictionary. 2011.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Steroid 11beta-monooxygenase — In enzymology, a steroid 11beta monooxygenase (EC number|1.14.15.4) is an enzyme that catalyzes the chemical reaction:a steroid + reduced adrenal ferredoxin + O2 ightleftharpoons an 11beta hydroxysteroid + oxidized adrenal ferredoxin + H2OThe 3… …   Wikipedia

  • Steroid 17alpha-monooxygenase — In enzymology, a steroid 17alpha monooxygenase (EC number|1.14.99.9) is an enzyme that catalyzes the chemical reaction:a steroid + AH2 + O2 ightleftharpoons a 17alpha hydroxysteroid + A + H2OThe 3 substrates of this enzyme are steroid, AH2, and… …   Wikipedia

  • Steroid 9alpha-monooxygenase — In enzymology, a steroid 9alpha monooxygenase (EC number|1.14.99.24) is an enzyme that catalyzes the chemical reaction:pregna 4,9(11) diene 3,20 dione + AH2 + O2 ightleftharpoons 9,11alpha epoxypregn 4 ene 3,20 dione + A + H2OThe 3 substrates of… …   Wikipedia

  • steroid 11β-monooxygenase — ster·oid 11β mono·oxy·gen·ase (sterґoid mon″o okґsə jən ās) [EC 1.14.15.4] an enzyme of the oxidoreductase class that catalyzes the NADPH dependent hydroxylation of steroids at the 11 position as a step in the synthesis… …   Medical dictionary

  • steroid 17α-monooxygenase — ster·oid 17α mono·oxy·gen·ase (sterґoid mon″o okґsə jən ās) [EC 1.14.99.9] an enzyme of the oxidoreductase class that catalyzes the hydroxylation of steroids at the 17 position. The enzyme is a microsomal cytochrome P… …   Medical dictionary

  • Steroid-11–beta-Hydroxylase — Steroid–11 beta Hydroxylase Größe 479 Aminosäuren Struktur mitochondriales Membranprotein Kofaktor …   Deutsch Wikipedia

  • Steroid 11-beta-Hydroxylase — Steroid–11 beta Hydroxylase Größe 479 Aminosäuren Struktur mitochondriales Membranprotein Kofaktor …   Deutsch Wikipedia

  • Steroid–11-beta-Hydroxylase — Größe 479 Aminosäuren Struktur mitochondriales Membranprotein Kofaktor …   Deutsch Wikipedia

  • Steroid-11beta-Hydroxylase — Masse/Länge Primärstruktur 479 Aminosäuren …   Deutsch Wikipedia

  • Steroid sulfatase — (microsomal), isozyme S PDB rendering based on 1p49 …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”