Cholesterol side-chain cleavage enzyme
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(Redirected from P450 scc)
| cytochrome P450, family 11, subfamily A, polypeptide 1
| |
| Identifiers | |
| Symbol | CYP11A1 |
| Alt. Symbols | CYP11A |
| Entrez | 1583 |
| HUGO | 2590 |
| OMIM | 118485 |
| RefSeq | NM_000781 |
| UniProt | P05108 |
| Other data | |
| EC number | 1.14.15.6 |
| Locus | Chr. 15 q23-q24 |
P450 scc (or 20,22-Desmolase) is an enzyme associated with the conversion of cholesterol to pregnenolone. The terminology "Desmolase" is becoming outdated and the enzyme is now more commonly referred to as P450scc.
The "scc" refers to side chain cleavage.
Contents |
Steroid hormone synthesis
Pathology
A deficiency can lead to lipoid congenital adrenal hyperplasia. However, this is very rare.
See also
Additional images
External links
Template:Biochemistry-stub Template:Steroid hydroxylases
Cytochromes, oxygenases: cytochrome P450 (EC 1.14) | |
|---|---|
| CYP1 | A1, A2, B1 |
| CYP2 | A6, A7, A13, B6, C8, C9, C18, C19, D6, E1, F1, J2, R1, S1, U1, W1 |
| CYP3 | A4, A5, A7, A43 |
| CYP4 | A11, A22, B1, F2, F3, F8, F11, F12, F22, V2, X1, Z1 |
| CYP5-20 | CYP5 (A1) - CYP7 (A1, B1) - CYP8 (A1, B1) - CYP11 (A1, B1, B2) - CYP17 (A1) - CYP19 (A1) - CYP20 (A1) |
| CYP21-51 | CYP21 (A2) - CYP24 (A1) - CYP26 (A1, B1, C1) - CYP27 (A1, B1, C1) - CYP39 (A1) - CYP46 (A1) - CYP51 (A1) |
Oxidoreductases: dioxygenases, including steroid hydroxylases (EC 1.14) | |
|---|---|
| 1.14.11 - 2-oxoglutarate | Prolyl hydroxylase - Lysyl hydroxylase |
| 1.14.13 - NADH or NADPH | Flavin-containing monooxygenase - Nitric oxide synthase - Cholesterol 7 alpha-hydroxylase - Methane monooxygenase - 3A4 -51A1 |
| 1.14.14 - reduced flavin or flavoprotein | 19A1 - 2D6 - 2E1 |
| 1.14.15 - reduced iron-sulfur protein | 11B1 - 11B2 - 11A1 |
| 1.14.16 - reduced pteridine | Phenylalanine hydroxylase - Tyrosine hydroxylase - Tryptophan hydroxylase |
| 1.14.17 - reduced ascorbate | Dopamine beta hydroxylase |
| 1.14.18-19 - other | Tyrosinase - Stearoyl-CoA desaturase-1 |
| 1.14.99 - miscellaneous | Cyclooxygenase - Heme oxygenase (HMOX1) - Squalene monooxygenase - 17A1 - 21A2 |
Enzymes: multienzyme complexes |
|---|
| CAD (Carbamoyl phosphate synthase II, Aspartate carbamoyltransferase, Dihydroorotase) - Cholesterol side-chain cleavage enzyme - Cytochrome b6f complex - Electron transport chain - Fatty acid synthetase complex - Glycine decarboxylase complex - Mitochondrial trifunctional protein (HADHA, HADHB) - Oxoglutarate dehydrogenase - Phosphoenolpyruvate sugar phosphotransferase system - Photosynthetic reaction center complex proteins - Photosystem - Polyketide synthase - Pyruvate dehydrogenase complex (E1, E2, E3) - Sucrase-isomaltase complex -Tryptophan synthase |
