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专家详说细菌和病毒----中国科学院 #4

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aaaafei opened this issue Dec 28, 2022 · 0 comments
Open

专家详说细菌和病毒----中国科学院 #4

aaaafei opened this issue Dec 28, 2022 · 0 comments
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@aaaafei
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aaaafei commented Dec 28, 2022

  吸附:病毒通过识别宿主细胞膜表面特有的受体蛋白分子来“盯上”目标细胞(比如新型冠状病毒识别的是人呼吸道和肺部细胞表面的血管紧张素转化酶2-ACE2);侵入:然后病毒要么通过某种方式进入宿主细胞(如膜融合),要么直接将遗传物质注入宿主细胞之内;脱壳:紧接着病毒感染性核酸从衣壳内被释放出来;生物合成:“马不停蹄”地进行生物合成——根据基因指令,并借助宿主细胞提供的原料、能量和场所来合成病毒的核酸和蛋白质;组装:新合成的病毒核酸和蛋白质会组装成子代病毒;释放:子代病毒释放到宿主细胞外。

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