Anti-HSD3B1 Antibody Picoband® Fluoro647 Conjugated

HSD3B1 is a human gene that encodes for a 3beta-hydroxysteroid dehydrogenase/delta (5) -delta (4) isomerase type I or hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 1. It is mapped to 1p12. The protein encoded by this gene is an enzyme that catalyzes the oxidative conversion of delta-5-3-beta-hydroxysteroid precursors into delta-4-ketosteroids, which leads to the production of all classes of steroid hormones. The encoded protein also catalyzes the interconversion of 3-beta-hydroxy- and 3-keto-5-alpha-androstane steroids.

3 beta-hydroxysteroid dehydrogenase/Delta 5-->4-isomerase type 1; 3 beta-hydroxysteroid dehydrogenase/Delta 5-->4-isomerase type I; 3-beta-HSD I; 3-beta-hydroxy-5-ene steroid dehydrogenase; 3-beta-hydroxy-Delta (5) -steroid dehydrogenase; 3-beta-hydroxysteroid 3-dehydrogenase; Delta-5-3-ketosteroid isomerase; Dihydrotestosterone oxidoreductase; Steroid Delta-isomerase; Trophoblast antigen FDO161G; HSD3B1; 3BH, HSDB3A

Atherosclerosis, Cardiovascular, Fatty Acid Oxidation, Fatty Acids, Heart Disease, Lipid and Lipoprotein Metabolism, Lipids/Lipoproteins, Metabolic Signaling Pathways, Metabolism, Neurology Process, Neuroscience, Pathways and Processes, Redox Metabolism, Vascular Inflammation

A bifunctional enzyme responsible for the oxidation and isomerization of 3beta-hydroxy-Delta5-steroid precursors to 3-oxo-Delta4-steroids, an essential step in steroid hormone biosynthesis. Specifically catalyzes the conversion of pregnenolone to progesterone, 17alpha-hydroxypregnenolone to 17alpha-hydroxyprogesterone, dehydroepiandrosterone (DHEA) to 4-androstenedione, and androstenediol to testosterone. Additionally, catalyzes the interconversion between 3beta-hydroxy and 3-oxo-5alpha-androstane steroids controlling the bioavalability of the active forms. Specifically converts dihydrotestosterone to its inactive form 5alpha-androstanediol, that does not bind androgen receptor/AR. Also converts androstanedione, a precursor of testosterone and estrone, to epiandrosterone (PubMed:1401999, PubMed:2139411) . Expected to use NAD+?as preferred electron donor for the 3beta-hydroxy-steroid dehydrogenase activity and NADPH for the 3-ketosteroid reductase activity (Probable) .

1. Taneja SS (January 2017) . Re: HSD3B1 and Resistance to Androgen-Deprivation Therapy in Prostate Cancer: A Retrospective, Multicohort Study. The Journal of Urology. 197 (1) : 150. 2. Hearn, Jason (October 2016) . HSD3B1 and resistance to androgen-deprivation therapy in prostate cancer: a retrospective, multicohort study. Lancet Oncology. 17 (10) : 1435–1444. 3. Russell AJ, Gaffney D, Gardiner MT, Nickson DA, Sutcliffe RG (March 1991) . Synonymous polymorphism in the coding sequence of human 3-beta hydroxysteroid-5-ene dehydrogenase (HSD) . Nucleic Acids Research. 19 (5) : 1172.