PEDV ORF3 encodes an ion channel protein and regulates virus production.
PEDV ORF3 encodes an ion channel protein and regulates virus production.
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PEDV ORF3 编码离子通道蛋白并调节病毒产生
DOI:
10.1016/j.febslet.2012.01.005
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发表时间:
2012-02-17
期刊:
影响因子:
3.5
通讯作者:
Sun B
中科院分区:
文献类型:
--
作者:
Wang K;Lu W;Chen J;Xie S;Shi H;Hsu H;Yu W;Xu K;Bian C;Fischer WB;Schwarz W;Feng L;Sun B
Several studies suggest that the open reading frame 3 (ORF3) gene of porcine epidemic diarrhea virus (PEDV) is related to viral infectivity and pathogenicity, but its function remains unknown. Here, we propose a structure model of the ORF3 protein consisting of four TM domains and forming a tetrameric assembly. ORF3 protein can be detected in PEDV‐infected cells and it functions as an ion channel in both Xenopus laevis oocytes and yeast. Mutation analysis showed that Tyr170 in TM4 is important for potassium channel activity. Furthermore, viral production is reduced in infected Vero cells when ORF3 gene is silenced by siRNA. Interestingly, the ORF3 gene from an attenuated PEDV encodes a truncated protein with 49 nucleotide deletions, which lacks the ion channel activity. ► Computational modeling of PEDV OFR3 protein. ► Wild‐type PEDV ORF3 protein functions as an ion channel and regulates virus production. ► The truncated protein encoded by an attenuated‐type PEDV ORF3 shows less channel activity.
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DOI:
10.1016/j.bbamem.2010.05.014
发表时间:
2011-03
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Fischer WB;Hsu HJ
通讯作者:
Hsu HJ
DOI:
10.1016/j.bbamem.2010.05.006
发表时间:
2011-03
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Wang K;Xie S;Sun B
通讯作者:
Sun B
影响因子:
3.4
作者:
Madan, Vanessa;Castello, Alfredo;Carrasco, Luis
通讯作者:
Carrasco, Luis
影响因子:
6.7
作者:
Pervushin K;Tan E;Parthasarathy K;Lin X;Jiang FL;Yu D;Vararattanavech A;Soong TW;Liu DX;Torres J
通讯作者:
Torres J
影响因子:
7.6
作者:
Akerström S;Mirazimi A;Tan YJ
通讯作者:
Tan YJ