Anti-HSD3B1 Antibody Picoband®, APC Conjugate

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

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.

Store at -20℃ for one year from date of receipt. After reconstitution, at 4℃ for one month. It can also be aliquotted and stored frozen at -20℃ for six months. Avoid repeated freeze-thaw cycles.

Western blot, 0.1-0.25μg/ml, Human<br> Immunohistochemistry (Paraffin-embedded Section), 0.5-1μg/ml, Human<br> Immunocytochemistry/Immunofluorescence, 2μg/ml, Human<br> Flow Cytometry (Fixed), 1-3μg/1x10⁶ cells, Human<br> ELISA, 0.1-0.5μg/ml, -<br>