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Isolation and characterisation of genomic and cDNA clones for an androgen-regulated secretory protein of rat seminal vesicles.

Testosterone controls the synthesis of seminal vesicle protein F in male rats by regulating the cellular concentration of its mRNA (mRNAF). Phage lambda recombinants have been isolated containing the complete F gene. In addition plasmids have been constructed containing cDNAF sequences some of which are probably full-length (approximately 700 bp). Detailed restriction mapping shows that the F gene is 1.7 kbp long and contains approximately 1.0 kbp of intervening sequence arranged in at least two introns (420 bp and 600 bp). Part of cDNAF has been sequenced showing that the terminal 125 bp of the 3' untranslated region of mRNAF has substantial (greater than 70%) sequence homology with the 3' end of the mRNA coding for another androgen-dependent seminal vesicle protein (protein S). The cloned F gene has been detected in liver and seminal vesicle DNA along with an homologous but structurally different gene. The hormonal control of mRNAF was examined with cDNAF. A pronounced (approximately 3000-fold) differential response to testosterone was observed.