MSI_000008010

17-Hydroxyprogesterone also known as 17-OH progesterone (17-OHP), or hydroxyprogesterone (OHP), is an endogenous progestogen steroid hormone related to progesterone. Formally it is a 17alpha-hydroxy steroid that is the 17alpha-hydroxy derivative of progesterone. 17-Hydroxyprogesterone is found in all vertebrates. It is a chemical intermediate in the biosynthesis of many endogenous steroids, including androgens, estrogens, glucocorticoids, mineralocorticoids and neurosteroids. In particular, 17-Hydroxyprogesterone serves as an intermediate in the biosynthesis of hydrocortisone and gonadal steroid hormones. It is derived from progesterone via the enzyme known as 17-hydroxylase, a cytochrome P450 enzyme also known as CYP17A1. It can also be biosynthesized from 17-hydroxypregnenolone via the enzyme 3beta-hydroxysteroid dehydrogenase/delta5-4 isomerase (PMID: 1955079). 17-OHP is an agonist of the progesterone receptor (PR). It is also an antagonist of the mineralocorticoid receptor (MR) as well as a partial agonist of the glucocorticoid receptor (GR). 17-Hydroxyprogesterone is a natural progestin and in pregnancy it increases in the third trimester primarily due to fetal adrenal production. 17-Hydroxyprogesterone is primarily produced in the adrenal glands and to some degree in the gonads, specifically the corpus luteum of the ovary. Normal levels are 3-90 ng/dl in children, and in women, 15-70 ng/dl prior to ovulation, and 35-290 ng/dl during the luteal phase. Measurements of levels of 17-hydroxyprogesterone are useful in the evaluation of patients with suspected congenital adrenal hyperplasia as the typical enzymes that are defective, namely 21-hydroxylase, lead to a build-up of 17-OHP. 17-OHP levels can also be used to measure contribution of progestational activity of the corpus luteum during pregnancy as progesterone but not 17-OHP is also contributed by the placenta. It serves as an intermediate in the biosynthesis of hydrocortisone and gonadal steroid hormones. It is derived from progesterone via 17-hydroxylase, a P450c17 enzyme, or from 17-hydroxypregnenolone via 3β-hydroxysteroid dehydrogenase/Δ5-4 isomerase. 17-Hydroxyprogesterone is a natural progestin and in pregnancy increases in the third trimester primarily due to fetal adrenal production. CONFIDENCE standard compound; INTERNAL_ID 1144; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9336; ORIGINAL_PRECURSOR_SCAN_NO 9331 CONFIDENCE standard compound; INTERNAL_ID 1144; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9427; ORIGINAL_PRECURSOR_SCAN_NO 9423 CONFIDENCE standard compound; INTERNAL_ID 1144; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9386; ORIGINAL_PRECURSOR_SCAN_NO 9384 CONFIDENCE standard compound; INTERNAL_ID 1144; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9371; ORIGINAL_PRECURSOR_SCAN_NO 9370 CONFIDENCE standard compound; INTERNAL_ID 1144; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9334; ORIGINAL_PRECURSOR_SCAN_NO 9329 CONFIDENCE standard compound; INTERNAL_ID 1144; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 9378; ORIGINAL_PRECURSOR_SCAN_NO 9376 G - Genito urinary system and sex hormones > G03 - Sex hormones and modulators of the genital system > G03D - Progestogens > G03DA - Pregnen (4) derivatives C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C1636 - Therapeutic Steroid Hormone D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones 17α-Hydroxyprogesterone (17-Hydroxyprogesterone) is an endogenous progesterone that serves as a chemical intermediate in the biosynthesis of other steroid hormones, including glucocorticoids, androgens, and estrogens.