Synthetic peptides derived from SARS coronavirus S protein with diagnostic and therapeutic potential.

Synthetic peptides derived from SARS coronavirus S protein with diagnostic and therapeutic potential.
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具有诊断和治疗潜力的源自SARS冠状病毒S蛋白的合成肽

DOI:
10.1016/j.febslet.2005.02.070
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发表时间:
2005-04-11
期刊:
影响因子:
3.5
通讯作者:
Sun B
Sun B
中科院分区:
生物学3区
文献类型:
--
作者:
Lu W;Wu XD;Shi MD;Yang RF;He YY;Bian C;Shi TL;Yang S;Zhu XL;Jiang WH;Li YX;Yan LC;Ji YY;Lin Y;Lin GM;Tian L;Wang J;Wang HX;Xie YH;Pei G;Wu JR;Sun B

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严重急性呼吸综合征冠状病毒(SARS-CoV)的刺突蛋白(S)是一种重要的病毒结构蛋白。基于生物信息学分析,从S蛋白序列中筛选并合成了10个抗原肽。对所有肽段进行了体内、体外抗原性和免疫反应性检测。经鉴定,P6、P8、P9和P10四个肽段均含有S蛋白的B细胞表位,其中P8肽段经体内试验证实具有血清学诊断的潜力。通过使用合胞体形成模型,我们测试了所有10种肽及其相应抗体的中和能力。有趣的是,发现P8和P9肽抑制合胞体形成,这表明P8和P9跨越区域可能为抗SARS CoV药物设计提供良好的靶标。我们的数据表明,我们已经确定了来自SARS冠状病毒S蛋白的肽,这对SARS的治疗和诊断是有用的。
The spike (S) protein of severe acute respiratory syndrome coronavirus (SARS‐CoV) is an important viral structural protein. Based on bioinformatics analysis, 10 antigenic peptides derived from the S protein sequence were selected and synthesized. The antigenicity and immunoreactivity of all the peptides were tested in vivo and in vitro. Four peptides (P6, P8, P9 and P10) which contain B cell epitopes of the S protein were identified, and P8 peptide was confirmed in vivo to have a potential in serological diagnosis. By using a syncytia formation model, we tested the neutralization ability of all 10 peptides and their corresponding antibodies. It is interesting to find that P8 and P9 peptides inhibited syncytia formation, suggesting that the P8 and P9 spanning regions may provide a good target for anti‐SARS‐CoV drug design. Our data suggest that we have identified peptides derived from the S protein of SARS‐CoV, which are useful for SARS treatment and diagnosis.
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