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SARS相关病毒与鼠肝炎病毒S蛋白的同源暗示一个潜在受体结合区的存在 被引量:3

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摘要 最近,一种新的冠状病毒被确定为近期爆发的严重急性呼吸综合征(SARS)的病原体。虽然人们对人冠状病毒229E已经有了较多的研究,而且其受体结合位点也被确定在S蛋白第417~547个氨基酸残基之间。但是,这一区域与新分离的SARS相关病毒(香港株,CUHK-W1)没有任何同源性。有意思的是,已知的各种冠状病毒S蛋白S1亚基的序列比对和进化分析显示,鼠肝炎病毒(MHV)与SARS相关病毒的同源性最高。而且,MHV的S蛋白上负责受体结合的重要位点(第62~65和第214~216位氨基酸残基)与SARS相关病毒的相应区域(第51~54和第195~197位氨基酸残基)高度同源。这些生物信息学的分析结果可能对研究SARS相关病毒的受体结合位点和病毒侵染靶细胞的机理有所帮助,进而为设计抗病毒药物和疫苗提供新靶点。
作者 陆韻 陈应华
出处 《科学通报》 EI CAS CSCD 北大核心 2003年第11期1197-1199,共3页 Chinese Science Bulletin
基金 教育部抗“非典”科技攻关专项基金资助项目
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参考文献1

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共引文献121

同被引文献43

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