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H1506

Sigma-Aldrich

3α-Hydroxysteroid Dehydrogenase from Pseudomonas testosteroni

≥15 units/mg protein

Synonym(s):

3α-Hydroxysteroid:NAD(P)+ oxidoreductase

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50 UNITS
¥104,000

¥104,000

Estimated to ship onMay 30, 2025

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50 UNITS
¥104,000

About This Item

CAS Number:
9028-56-2
Enzyme Commission number:
1.1.1.50 (BRENDA, IUBMB)
EC Number:
232-839-5
MDL number:
MFCD00130298
UNSPSC Code:
12352204
NACRES:
NA.54

¥104,000

Estimated to ship onMay 30, 2025

biological source

bacterial (Pseudomonas testosteroni)

form

lyophilized solid

specific activity

≥15 units/mg protein

purified by

chromatography

composition

Protein, ≥25%

foreign activity

β-hydroxysteroid dehydrogenase ≤0.5%
alcohol dehydrogenase ≤0.05%

storage temp.

−20°C

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Application

3α-Hydroxysteroid Dehydrogenase from Pseudomonas testosterone has been used:
  • in the preparation of composite electrode platform to for the determination of androsterone[1]
  • in potassium phosphate buffer for the bioluminescent assay of bile acids in serum[2]
  • for total bile salts assay using an enzymatic method[3]

Biochem/physiol Actions

3α-hydroxysteroid dehydrogenase (3α-HSD) may help to modulate the occupancy of the androgen receptor (AR) in androgen target tissues. It may also act in hindering androgen action.[4]

Unit Definition

One unit will oxidize 1.0 μmole of androsterone per min at pH 8.9 at 25 °C in the presence of β-NAD+.

Physical form

Lyophilized powder containing potassium phosphate buffer salt, EDTA, and DL-dithiothreitol

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

H1506-10UN:
H1506-BULK:
H1506-50UN:
H1506-50UN-PW:
H1506-VAR:
H1506-5UN:

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Certificates of Analysis (COA)

Lot/Batch Number
0000431186
0000431186
0000421205
0000421205
0000191990

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Bin Li et al.
Proteins, 71(2), 670-683 (2007-11-03)
Experimentally determined protein tertiary structures are rapidly accumulating in a database, partly due to the structural genomics projects. Included are proteins of unknown function, whose function has not been investigated by experiments and was not able to be predicted by
Xiang Li et al.
Archives of pharmacal research, 30(7), 812-815 (2007-08-21)
Two novel lactones, Cephalosporolides H (1) and 1 (2), were isolated from the lyophilized culture broth of the marine-derived fungus, Penicillium sp. The structures were elucidated on the basis of extensive 1D- and 2D-NMR, as well as HRESI-MS spectroscopic analyses.
Expression and characterization of recombinant type 2 3alpha-hydroxysteroid dehydrogenase (HSD) from human prostate: demonstration of bifunctional 3alpha17beta-HSD activity and cellular distribution
Lin HK, et al.
Molecular Endocrinology, 11(13), 1971-1984 (1997)
Anne Z Steiner et al.
The Journal of clinical endocrinology and metabolism, 93(4), 1298-1303 (2008-02-07)
Dihydrotestosterone (DHT), the primary active androgen in peripheral target tissues, is metabolized by 3alpha-hydroxysteroid dehydrogenase type III (3alpha-HSD), encoded by the AKR1C2 gene, forming 5alpha-androstane-3alpha,17beta-diol (3alpha-diol). 3alpha-HSD may play a role in the pathogenesis of hirsutism. Our objective was to
Laurence Meyer et al.
Neurobiology of disease, 30(1), 30-41 (2008-02-23)
Identification of cellular targets pertinent for the development of effective therapies against pathological pain constitutes a difficult challenge. We combined several approaches to show that 3alpha-hydroxysteroid oxido-reductase (3alpha-HSOR), abundantly expressed in the spinal cord (SC), is a key target, the
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