Inactivation of human placental 17 beta,20 alpha-hydroxysteroid dehydrogenase by 16-methylene estrone, an affinity alkylator enzymatically generated from 16-methylene estradiol-17 beta.
نویسندگان
چکیده
منابع مشابه
Synthesis of 2-bromoacetamidoestrone methyl ether and study of the steroid-binding site of human placental estradiol 17 beta-dehydrogenase.
To characterize further the active site of human placental estradiol 17 beta-dehydrogenase (EC 1.1.1.62), we have synthesized 2-bromoacetamidoestrone methyl ether. The affinity-labeling steroid is a substrate for the homogeneous enzyme. It inactivates the enzyme in a time-dependent, irreversible manner which follows pseudo-first order kinetics. Further, inactivation conducted with varying stero...
متن کاملGenomic data on breast cancer transcript profile modulation by 17beta-hydroxysteroid dehydrogenase type 1 and 17-beta-estradiol
The data presented here are related to the research article entitled "Estradiol-independent modulation of breast cancer transcript profile by 17beta-hydroxysteroid dehydrogenase type 1" (J.A. Aka, E.L. Calvo, S.X. Lin, 2016) [1]. We evaluated the effect of the steroidal enzyme 17β-HSD1 and its product, the estrogenic hormone 17-beta-estradiol (E2), on gene transcription profile of breast cancer...
متن کاملExpression 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 کاملReaction mechanism of 17-beta-estradiol dehydrogenase determined by equilibrium rate exchange.
The reaction mechanism of human placental estradiol dehydrogenase (1’7P-estradiol: NAD-oxidoreductase, EC 1.1.1.62) has been investigated by measuring the rate of isotopic exchange between substrate-product pairs while varying concentrations of unlabeled reactants. The results show that the reaction is random with respect to order of substrate addition and that binary complex formation involvin...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1983
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(17)44255-4