MX抗病毒蛋白的古老历史

IF 13.9 1区 生物学 Q1 ECOLOGY
Vera Domingues
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引用次数: 0

摘要

MX蛋白是由干扰素(IFN)系统在对病毒和其他病原体的反应中诱导产生的。这些蛋白是动力蛋白超家族(DSP)的成员,是真核细胞中介导关键细胞过程的多结构域gtp酶。MX蛋白在鱼类和哺乳动物中有充分的记录,它们具有广泛的抗病毒活性,并且在无脊椎动物中也发现了MX样基因。Langley等人在《美国国家科学院院刊》上发表文章,结合DSP序列的系统发育和结构域表征,在动物、植物和真菌基因组中寻找MX同源物。他们在许多脊椎动物中发现了MX蛋白,在一些无脊椎动物、植物和真菌物种中也发现了MX同源物,这表明MX蛋白在骨性脊椎动物中出现IFN系统之前就在动物中出现了。进一步的分析表明,在特定的脊椎动物谱系中基因丢失和重复,在植物和真菌同源物中高度动态的基因周转,所有这些都表明宿主和病毒之间的进化军备竞赛。更广泛的分类研究表明,MX蛋白存在于大多数主要的真核生物超群中,这表明MX蛋白的早期起源接近真核生物的起源。最后,作者发现DSP分支不仅包括真核生物的基因,也包括巨型病毒的基因,这表明巨型DNA病毒反复获得DSP蛋白(可能是在宿主-病毒相互作用期间)。总之,这些发现显示了MX蛋白在真核生物中的深层根源,并表明dsp在宿主和病毒之间的进化军备竞赛中发挥了核心作用。原始参考文献:《自然科学进展》。USA 122, e2416811122 (2025)
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ancient history of MX antiviral proteins
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来源期刊
Nature ecology & evolution
Nature ecology & evolution Agricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics
CiteScore
22.20
自引率
2.40%
发文量
282
期刊介绍: Nature Ecology & Evolution is interested in the full spectrum of ecological and evolutionary biology, encompassing approaches at the molecular, organismal, population, community and ecosystem levels, as well as relevant parts of the social sciences. Nature Ecology & Evolution provides a place where all researchers and policymakers interested in all aspects of life's diversity can come together to learn about the most accomplished and significant advances in the field and to discuss topical issues. An online-only monthly journal, our broad scope ensures that the research published reaches the widest possible audience of scientists.
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