Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

H1506

Sigma-Aldrich

3α-Hydroxysteroid Dehydrogenase from Pseudomonas testosteroni

≥15 units/mg protein

Synonym(s):

3α-Hydroxysteroid:NAD(P)+ oxidoreductase

Sign Into View Organizational & Contract Pricing
All Photos(1)

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

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

Looking for similar products? Visit Product Comparison Guide

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 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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
0000202600
0000191990
0000191990
0000202600
SLCB6953

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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
Pascal Barat et al.
Endocrinology, 148(10), 4836-4843 (2007-07-14)
Glucocorticoids are metabolized by 11beta-hydroxysteroid dehydrogenase 1 (11betaHSD1) and the A-ring reductases (5alpha- and 5beta-reductases). Dysregulation of these enzymes has been reported in liver and adipose tissue in obese humans and animals, potentially leading to altered intracellular glucocorticoid concentrations and
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)
Frank Hoffmann et al.
Journal of biotechnology, 129(1), 131-139 (2007-01-30)
3alpha-Hydroxysteroid dehydrogenase/carbonyl reductase (3alpha-HSD/CR) from Comamonas testosteroni belongs to the short chain dehydrogenase/reductase (SDR) protein superfamily and catalyzes the oxidoreduction of a variety of steroid substrates, including the steroid antibiotic fusidic acid. The enzyme also mediates the carbonyl reduction of
Brandon Bartling et al.
The Analyst, 134(5), 973-979 (2009-04-22)
An electrochemical sensor, based on thick-film screen-printed Ir/C working and counter electrodes, was developed for the detection of total bile acid concentration in a physiological fluid for potential patient management in patients with liver disease. Current electrochemical methods of detecting
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service