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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Reduced fertility in mice deficient for the POU protein sperm-1
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Reduced fertility in mice deficient for the POU protein sperm-1

机译:缺乏POU蛋白sperm-1的小鼠的生育力降低

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摘要

Members of the POU-homeodomain gene family encode transcriptional regulatory molecules that play important roles in terminal differentiation of many organ systems. Sperm-1 (Sprm-1) is a POU domain factor that is exclusively expressed in the differentiating male germ cell. We show here that the Sprm-1 protein is expressed in the haploid spermatid and that 129/Sv Sprm-1(-/-) mice are subfertile when compared with wild-type or heterozygous littermates yet exhibit normal testicular morphology and produce normal numbers of mobile spermatozoa. Our data suggest that the Sprm-1 protein plays a discrete regulatory function in the haploid spermatid, which is required for the optimal function, but not the terminal differentiation, of the male germ cell.
机译:POU-同源结构域基因家族的成员编码在许多器官系统的终末分化中起重要作用的转录调节分子。精子1(Sprm-1)是一个POU域因子,仅在分化的雄性生殖细胞中表达。我们在这里显示,Sprm-1蛋白在单倍体精子细胞中表达,与野生型或杂合同窝仔相比,129 / Sv Sprm-1(-/-)小鼠可育,但它们表现出正常的睾丸形态并产生正常数量的移动精子。我们的数据表明,Sprm-1蛋白在单倍体精子细胞中具有离散的调节功能,这是雄性生殖细胞的最佳功能而非终末分化所必需的。

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