Recombinant Human 3 beta-hydroxysteroid dehydrogenase/Delta 5--4-isomerase type 1 (HSD3B1), partial | CSB-EP010781HU1

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3 - 7 Working Days
  • Recombinant Human 3 beta-hydroxysteroid dehydrogenase/Delta 5--4-isomerase type 1 (HSD3B1), partial
  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
€298.00 - €1,702.00


Recombinant Human 3 beta-hydroxysteroid dehydrogenase/Delta 5--4-isomerase type 1 (HSD3B1), partial | CSB-EP010781HU1 | Cusabio

Alternative Name(s): 3 beta-hydroxysteroid dehydrogenase/Delta 5-->4-isomerase type I

Gene Names: HSD3B1

Research Areas: Cancer

Organism: Homo sapiens (Human)


Source: E.coli

Tag Info: N-terminal 10xHis-tagged and C-terminal Myc-tagged

Expression Region: 2-237aa

Sequence Info: Partial

MW: 33.4 kDa

Purity: Greater than 90% as determined by SDS-PAGE.

Relevance: 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).

Reference: "Characterization of human 3 beta-hydroxysteroid dehydrogenase/delta 5-delta 4-isomerase gene and its expression in mammalian cells." Lachance Y., Luu-The V., Labrie C., Simard J., Dumont M., Launoit Y.D., Guerin S., Leblanc G., Labrie F. J. Biol. Chem. 265:20469-20475(1990)

Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20?/-80?. The shelf life of lyophilized form is 12 months at -20?/-80?.

Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4? for up to one week.


Involvement in disease:

Subcellular Location:

Protein Families:

Tissue Specificity:


Form: Liquid or Lyophilized powder

Buffer: If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.

Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20?/-80?. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Uniprot ID: P14060

HGNC Database Link: N/A

UniGene Database Link: N/A

KEGG Database Link: N/A

STRING Database Link: N/A

OMIM Database Link: N/A

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