CATH Classification

Domain Context

CATH Clusters

Superfamily Cytochrome P450
Functional Family steroid 21-hydroxylase isoform X1

Enzyme Information

1.14.14.16
Steroid 21-monooxygenase.
based on mapping to UniProt P00191
A C(21) steroid + [reduced NADPH--hemoprotein reductase] + O(2) = a 21-hydroxy-C(21)-steroid + [oxidized NADPH--hemoprotein reductase] + H(2)O.
-!- For the conversion of progesterone and 17-alpha-hydroxyprogesterone to their respective 21-hydroxylated derivatives, 11-deoxycorticosterone and 11-deoxycortisol. -!- Involved in the biosynthesis of the hormones aldosterone and cortisol. -!- The electron donor is EC 1.6.2.4. -!- Formerly EC 1.14.1.8, EC 1.14.99.10 and EC 1.99.1.11.

UniProtKB Entries (1)

P00191
CP21A_BOVIN
Bos taurus
Steroid 21-hydroxylase

PDB Structure

PDB 3QZ1
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal Structure of Bovine Steroid of 21-hydroxylase (P450c21)
Zhao, B., Lei, L., Sundaramoorthy, M., Kagawa, N., Waterman, M.R.
To be Published
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