Expression cloning and characterization of human 17 beta-hydroxysteroid dehydrogenase type 2, a microsomal enzyme possessing 20 alpha-hydroxysteroid dehydrogenase activity
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چکیده
منابع مشابه
Expression cloning and characterization of human 17 beta-hydroxysteroid dehydrogenase type 2, a microsomal enzyme possessing 20 alpha-hydroxysteroid dehydrogenase activity.
17 beta-Hydroxysteroid dehydrogenase (17 beta-HSD) is an enzyme crucial to the regulation of intracellular levels of biologically active steroid hormones in a variety of tissues. Here, we report the isolation, structure, and characterization of a cDNA encoding the human 17 beta-HSD type 2. A 1.4-kilobase cDNA was identified, and DNA sequence analysis indicated that 17 beta-HSD type 2 was a prot...
متن کامل17 beta-Hydroxysteroid dehydrogenase type 2 expression and enzyme activity in the human gastrointestinal tract.
The 17 beta-hydroxysteroid dehydrogenases (17 beta HSDs) play an important role in the regulation of intracellular levels of biologically active sex steroid hormones in various human tissues. To date, eight distinctive 17 beta HSD enzymes have been cloned and characterized in humans. Among these isoenzymes, 17 beta HSD type 2 (17 beta HSD2) catalyses the conversion of testosterone into androste...
متن کاملCharacterization of a human 20 -hydroxysteroid dehydrogenase
It has been suggested that 20 -hydroxysteroid dehydrogenase (20 -HSD) is a T-cell differentiation marker in mice. In the human, this enzyme has generally been associated with types 1 and 2 17 -HSDs, which belong to the short-chain alcohol dehydrogenase family, whereas the rat, rabbit, pig and bovine 20 -HSDs are members of the aldoketo reductase superfamily, which also includes the 3 -HSD famil...
متن کامل3b-Hydroxysteroid Dehydrogenase/D-Isomerase Activity Associated with the Human 17b-Hydroxysteroid Dehydrogenase Type 2 Isoform*
The type 2 isoform of human 17b-hydroxysteroid dehydrogenase (17bHSD2) efficiently catalyzes the oxidative metabolism of androgens and estrogens, and it is expressed in a large series of human peripheral tissues. To obtain a better understanding of the regulation of local steroid biosynthesis and metabolism in human tissues, we have established a dual steroidogenic activity of the 17bHSD2 enzym...
متن کاملCloning and expression of chicken 20-hydroxysteroid dehydrogenase.
The ligand specificity and activation of steroid receptors depend considerably on the enzymatic activities involved in local pre-receptor synthesis and the metabolism of the steroids. Several enzymes in particular, steroid dehydrogenases have been shown to participate in this process. Here we report the isolation of 20-hydroxysteroid dehydrogenase (ch20HSD) cDNA from chicken intestine and the d...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1993
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)31480-7