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H1506

Sigma-Aldrich

3α-Hydroxysteroid Dehydrogenase from Pseudomonas testosteroni

≥15 units/mg protein

Sinónimos:

3α-Hydroxysteroid:NAD(P)+ oxidoreductase

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About This Item

Número de CAS:
9028-56-2
Comisión internacional de enzimas:
1.1.1.50 (BRENDA, IUBMB)
EC Number:
232-839-5
MDL number:
MFCD00130298
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

bacterial (Pseudomonas testosteroni)

Quality Level

200

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
  • in potassium phosphate buffer for the bioluminescent assay of bile acids in serum
  • for total bile salts assay using an enzymatic method

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.

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

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
0000191990
0000202600
SLCB6953
SLBQ8675V
SLBN7037V

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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
Bioluminescent assay for total bile acids in serum with use of bacterial luciferase.
Styrelius I, et al.
Clinical Chemistry, 29(6), 1123-1127 (1983)
Enzyme biosensor for androsterone based on 3alpha-hydroxysteroid dehydrogenase immobilized onto a carbon nanotubes/ionic liquid/NAD+ composite electrode
Mundaca RA, et al.
Talanta, 99(, 697-702 (2012)
Phytosterol ester processing in the small intestine; impact on cholesterol availability for absorption and chylomicron cholesterol incorporation in healthy humans
Amiot MJ, et al.
Journal of Lipid Research, jlr-M013730 (2011)
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
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