A novel gonadotropin-regulated testicular RNA helicase. A new member of the dead-box family.
[No authors listed]
摘要
A gonadotropin-regulated testicular RNA helicase (GRTH) was identified and characterized. GRTH cloned from rat Leydig cell, mouse testis, and human testis cDNA libraries is a novel member of the DEAD-box protein family. GRTH is transcriptionally up-regulated by chorionic gonadotropin via cyclic AMP-induced androgen formation in the Leydig cell. It has ATPase and RNA helicase activities and increases translation in vitro. This helicase is highly expressed in rat, mouse, and human testes and weakly expressed in the pituitary and hypothalamus. GRTH is produced in both somatic (Leydig cells) and germinal (meiotic spermatocytes and round haploid spermatids) cells and is developmentally regulated. GRTH predominantly localized in the cytoplasm may function as a translational activator. This novel helicase could be relevant to the control of steroidogenesis and the paracrine regulation of androgen-dependent spermatogenesis in the testis.
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基因功能
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原始数据
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文献解读
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