首页> 美国卫生研究院文献>Journal of Virology >Hepatitis B virus nucleocapsid particles do not cross the hepatocyte nuclear membrane in transgenic mice.
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Hepatitis B virus nucleocapsid particles do not cross the hepatocyte nuclear membrane in transgenic mice.

机译:乙型肝炎病毒核衣壳颗粒不会穿过转基因小鼠的肝细胞核膜。

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摘要

Transgenic mice that express the hepatitis B virus core protein were used to examine factors that influence the intracellular localization of nucleocapsid particles in the primary hepatocyte in vivo. In this model, viral nucleocapsid particles are strictly localized to the nucleus of the hepatocyte except when the nuclear membrane dissolves during cell division, at which time they enter the cytoplasm. The cytoplasmic nucleocapsid particles do not reenter the nucleus, however, when the nuclear membrane re-forms after cell division. The data support the notion that nucleocapsid particles can form de novo within the nucleus, and they suggest that performed nucleocapsid particles cannot be transported across the intact nuclear membrane in either direction. The results imply that nucleocapsid disassembly is probably required for entry of the hepadnaviral genome into the nucleus, and they question the role of the intranuclear viral nucleocapsid particle during the viral life cycle.
机译:表达乙型肝炎病毒核心蛋白的转基因小鼠用于检查影响原代肝细胞体内核衣壳颗粒细胞内定位的因素。在该模型中,病毒核衣壳颗粒严格定位在肝细胞核中,除非在细胞分裂过程中核膜溶解时才进入细胞质。但是,当细胞分裂后核膜重新形成时,胞质核衣壳颗粒不会重新进入细胞核。数据支持核衣壳颗粒可以在核内从头形成的观点,并且它们表明执行的核衣壳颗粒不能在任何方向上通过完整的核膜运输。结果表明,肝炎病毒基因组进入细胞核可能需要进行核衣壳的拆卸,并且他们质疑核内病毒核衣壳颗粒在病毒生命周期中的作用。

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