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首页> 外文期刊>Biochemical Genetics >Molecular Characterization and Functional Commonality of Nucleophosmin/Nucleoplasmin in Two Cyprinid Fish
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Molecular Characterization and Functional Commonality of Nucleophosmin/Nucleoplasmin in Two Cyprinid Fish

机译:两条鲤类鱼类中核蛋白/核纤溶酶的分子特征和功能共性

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摘要

Nucleophosminucleoplasmin has been studied mostly in mammals and amphibians. To clarify the characteristics and function of nucleophosmin/ nucleoplasmin in teleost fish, we cloned a full-length cDNA sequence from two cyprinid fish, Carassius auratus gibelio and Carassius auratus. Molecular characterization and multiple sequence alignments suggested that they are the homologs of nucleophosmin. RT-PCR and Western blot detected a specific expression in gonads, and immunofluorescence localization revealed their distribution in oogenic and spermatogenic cells. Furthermore, a sperm decondensation function was demonstrated by immunodepletion and in vitro sperm decondensation experiments. The data suggest that the cloned nucleophosmin should share expressional and functional characterization with nucleoplasmin and therefore provide novel evidence for a functional commonality of nucleophosmin and nucleoplasmin in fish.
机译:核蛋白/核纤溶酶主要在哺乳动物和两栖动物中进行了研究。为了阐明硬骨鱼中核磷素/核纤溶酶的特性和功能,我们从两条鱼,Car鱼和bel鱼中克隆了全长cDNA序列。分子表征和多个序列比对表明它们是核磷蛋白的同源物。 RT-PCR和Western印迹检测到性腺中有特异性表达,免疫荧光定位显示它们在卵母细胞和生精细胞中的分布。此外,通过免疫耗竭和体外精子去浓缩实验证明了精子去浓缩功能。数据表明,克隆的核磷素应与核纤溶酶共享表达和功能特征,因此为鱼类中的核磷脂和核纤溶酶的功能共性提供了新的证据。

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