Search results for CYP17A1

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Reaction (7 results from a total of 7)

Identifier: R-HSA-193068
Species: Homo sapiens
Compartment: cytosol, endoplasmic reticulum membrane
Pregnenolone (PREG) and NADPH + H+ react to form 17alpha-hydroxypregnenolone (17aHPREG), NADP+, and H2O. Steroid 17 alpha hydroxylase/17,20 lyase (CYP17A1), associated with the endoplasmic reticulum membrane, catalyzes this reaction.
Identifier: R-HSA-193099
Species: Homo sapiens
Compartment: cytosol, endoplasmic reticulum membrane
17Alpha-hydroxyprogesterone (17aHPROG), NADPH + H+, and O2 react to form 4-Androstene-3, 17-dione (ANDST), NADP+, H2O, and acetaldehyde. Steroid 17 alpha hydroxylase/17,20 lyase (CYP17A1), which also catalyzes 17-alpha-hydroxylation, catalyzes this lyase reaction.
Identifier: R-HSA-193070
Species: Homo sapiens
Compartment: cytosol, endoplasmic reticulum membrane
17-alpha-hydroxypregnenolone, NADPH + H+, and O2 react to form DHA (dehydroepiandrostenedione), NADP+, H2O, and acetaldehyde. CYP17 (which also catalyzes 17-alpha-hydroxylation) catalyzes this lyase reaction. There are marked species differences in which substrate is used for this lyase activity. The human enzyme prefers 17alpha-pregnenolone (delta5 steroid) as substrate (Brock, BJ, Waterman, MR, 1999). Corticotropin (Adrenocorticotropic hormone, ACTH) acts through the ACTH receptor called melanocortin receptor type 2 (MC2R) to stimulate steroidogenesis, increasing the production of androgens (McKenna et al, 1997).
Identifier: R-HSA-193072
Species: Homo sapiens
Compartment: cytosol, endoplasmic reticulum membrane
Progesterone (P4), NADPH + H+, and O2 react to form 17alpha-hydroxyprogesterone (17aHPROG), NADP+, and H2O. This reaction is catalyzed by steroid 17 alpha hydroxylase/17,20 lyase (CYP17A1), associated with the endoplasmic reticulum membrane.
Identifier: R-HSA-9035956
Species: Homo sapiens
Compartment: cytosol, endoplasmic reticulum membrane
Steroid 17-alpha-hydroxylase/17,20 lyase (CYP17A1) mediates both 17-alpha-hydroxylase and 17,20-lyase activity, allowing the adrenal glands and gonads to synthesise both 17-alpha-hydroxylated glucocorticoids and sex steroids respectively (Kagimoto et al. 1998). Defects in CYP17A1 can cause Adrenal hyperplasia 5 (AH5), a form of congenital adrenal hyperplasia (CAH), a common recessive disease due to defective synthesis of cortisol and sex steroids. Mutations causing combined 17-alpha-hydroxylase/17,20-lyase deficiency include S106P, R96W, W17*, R362C, W406R and R96Q (Lin et al. 1991, Laflamme et al. 1996, Suzuki et al. 1998, Martin et al. 2003, Brooke et al. 2006). Mutations causing isolated 17,20-lyase deficiency are R358Q and R347H (Geller et al. 1997, Van den Akker et al. 2002).
Identifier: R-HSA-9035954
Species: Homo sapiens
Compartment: cytosol, endoplasmic reticulum membrane
Steroid 17-alpha-hydroxylase/17,20 lyase (CYP17A1) mediates both 17-alpha-hydroxylase and 17,20-lyase activity, allowing the adrenal glands and gonads to synthesise both 17-alpha-hydroxylated glucocorticoids and sex steroids respectively (Kagimoto et al. 1998). Defects in CYP17A1 can cause Adrenal hyperplasia 5 (AH5), a form of congenital adrenal hyperplasia (CAH), a common recessive disease due to defective synthesis of cortisol and sex steroids. Mutations causing combined 17-alpha-hydroxylase/17,20-lyase deficiency include S106P, R96W, W17*, R362C, W406R and R96Q (Lin et al. 1991, Laflamme et al. 1996, Suzuki et al. 1998, Martin et al. 2003, Brooke et al. 2006). Mutations causing isolated 17,20-lyase deficiency are R358Q and R347H (Geller et al. 1997, Van den Akker et al. 2002).
Identifier: R-HSA-5601843
Species: Homo sapiens
Compartment: cytosol, endoplasmic reticulum membrane
Steroid 17-alpha-hydroxylase/17,20 lyase (CYP17A1) mediates both 17-alpha-hydroxylase and 17,20-lyase activity, allowing the adrenal glands and gonads to synthesise both 17-alpha-hydroxylated glucocorticoids and sex steroids respectively (Kagimoto et al. 1998). Defects in CYP17A1 can cause Adrenal hyperplasia 5 (AH5), a form of congenital adrenal hyperplasia (CAH), a common recessive disease due to defective synthesis of cortisol and sex steroids. Mutations causing combined 17-alpha-hydroxylase/17,20-lyase deficiency include S106P, R96W, W17*, R362C, W406R and R96Q (Lin et al. 1991, Laflamme et al. 1996, Suzuki et al. 1998, Martin et al. 2003, Brooke et al. 2006). Mutations causing isolated 17,20-lyase deficiency are R358Q and R347H (Geller et al. 1997, Van den Akker et al. 2002).
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