[Demonstration of a specific androgen binding protein (ABP) in the seminal plasma of the ram].
A specific androgen binding protein has been demonstrated in the seminal plasma of adult Ram. This protein binds especially to 5 alpha-DHT and testosterone and much lower to oestradiol-17 beta. Its characteristics such as Ka (in order 10(9) M(-1) at 4 degrees C), relative mobility (Rf) and its specificity are similar to those of the androgen binding protein (ABP) of the Rete Testis Fluid and the epididymal plasma of the Ram. It is probable that this protein secreted from the testis, crosses the epididymis before being secreted in the seminal plasma at the moment of the ejaculation.
D000818:Animals; D002352:Carrier Proteins / Q000378:metabolism*; D013196:Dihydrotestosterone / Q000378:metabolism; D004822:Epididymis / Q000378:metabolism; D007700:Kinetics; D008297:Male; D011944:Receptors, Androgen / Q000378:metabolism*; D011987:Receptors, Steroid / Q000378:metabolism*; D012661:Semen / Q000378:metabolism*; D012756:Sheep; D013329:Structure-Activity Relationship; D013737:Testis / Q000378:metabolism; D013739:Testosterone / Q000378:metabolism
D002352:Carrier Proteins; D011944:Receptors, Androgen; D011987:Receptors, Steroid; D013196:Dihydrotestosterone; D013739:Testosterone
Mise en évidence d'une protéine de liason spécifique des androgènes de type ABP (androgen binding protein) dans le plasma séminal du bélier.