CATH Classification
| Level | CATH Code | Description |
|---|---|---|
|
1 | Mainly Alpha |
|
1.10 | Orthogonal Bundle |
|
1.10.630 | Cytochrome p450 |
|
1.10.630.10 | Cytochrome P450 |
Domain Context
CATH Clusters
| Superfamily | Cytochrome P450 |
| Functional Family | Cholesterol side-chain cleavage enzyme, mitochondrial |
Enzyme Information
| 1.14.15.6 |
Cholesterol monooxygenase (side-chain-cleaving).
based on mapping to UniProt P05108
Cholesterol + 6 reduced adrenodoxin + 3 O(2) + 6 H(+) = pregnenolone + 4-methylpentanal + 6 oxidized adrenodoxin + 4 H(2)O.
-!- The reaction proceeds in three stages, with two hydroxylations at C-22 and C-20 preceding scission of the side-chain between carbons 20 and 22. -!- The initial source of the electrons is NADPH, which transfers the electrons to the adrenodoxin via EC 1.18.1.6.
|
UniProtKB Entries (1)
| P05108 |
CP11A_HUMAN
Homo sapiens
Cholesterol side-chain cleavage enzyme, mitochondrial
|
PDB Structure
| PDB | 3N9Y |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | |
| Primary Citation |
Structural basis for pregnenolone biosynthesis by the mitochondrial monooxygenase system.
Proc.Natl.Acad.Sci.USA
|