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A number of enzymes possessing 17beta-hydroxysteroid dehydrogenase/17-ketosteroid reductase (17HSD/KSR) activities have been described and cloned, but their nomenclature needs specification. To clarify the present situation, descriptions of the eight cloned 17HSD/KSRs are given and guidelines for the classification of novel 17HSD/KSR enzymes are presented.
Wnt-4 is a signaling factor with multiple roles in organogenesis, a deficiency that leads to abnormal development of the kidney, pituitary gland, female reproductive system, and mammary gland. Wnt-4 is expressed in the cortical region of the developing adrenal gland from embryonic d 11.5 onward, especially in the outermost part. Expression of Cyp11B2 and(More)
Epithelial-mesenchymal tissue interactions play a central role in vertebrate organogenesis, but the molecular mediators and mechanisms of these morphogenetic interactions are still not well characterized. We report here on the expression pattern of Wnt-2b during mouse organogenesis and on tests of its function in epithelial- mesenchymal interactions during(More)
cDNA clones for 17 beta-hydroxysteroid dehydrogenase (17-HSD; EC were isolated from a placental lambda gt11 expression library using polyclonal antibodies against placental 17-HSD. The largest cDNA contained 1325 nucleotides, consisting of a short 5'-noncoding segment, a coding segment of 987 nucleotides terminated by a TAA codon, and a 329(More)
Genomic 17 beta-hydroxysteroid-dehydrogenase (17-HSD) clones were isolated from a human leucocyte genomic library using cDNA encoding human placental 17-HSD as a probe. The overlapping fragments spanned more than 21 kbp containing the duplications, 6.2 kbp of each, as well as 7 kbp upstream and 1.6 kbp downstream from the duplicated sequences. 17 complete(More)
17β-Hydroxysteroid dehydrogenase (17HSD) is one of the key enzymes in estrogen metabolism, catalyzing the reversible reaction between estradiol and the less active estrogen, estrone. The gene encoding this enzyme, EDH17B2, has been mapped to chromosome 17, region q12–q21, in the vicinity of BRCA1, an as yet unidentified gene that appears to be involved in(More)
17 beta-Hydroxysteroid dehydrogenases/17-ketosteroid reductases (17HSDs) modulate the biological activity of certain estrogens and androgens by catalyzing reductase or dehydrogenase reactions between 17-keto- and 17 beta-hydroxysteroids. In the present study, we demonstrate expression cloning of a novel type of 17HSD, chronologically named 17HSD type 7,(More)
Rapid non-genomic actions of progesterone are implicated in many aspects of female reproduction. Recently, three human homologues of the fish membrane progestin receptor (mPR) have been identified. We combined bioinformatic analysis with expression profiling to define further the role of these mPRs in human reproductive tissues. Sequence analysis confirmed(More)
17beta-Hydroxysteroid dehydrogenases (17HSDs) have a central role in the regulation of the biological activity of sex steroid hormones. There is increasing evidence that in addition to their importance in gonads, these hormones also have substantial metabolic roles in a variety of peripheral tissues. In the present study, the cDNA of human 17HSD type 7 was(More)