lens of the eye. See also Steroidogenic enzyme Cytochrome P450 oxidoreductase deficiency References External links GeneReviews/NCBI/NIH/UW entry on 21-Hydroxylase-Deficient Congenital Adrenal Hyperplasia OMIM entry on 21-Hydroxylase-Deficient Congenital Adrenal Hyperplasia Synthesis of Desoxycorticosterone from Progesterone through 21-Hydroxylase (Image) Enzymes EC 1.14.99 21 Metabolism Human proteins