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Phospho-eIF4E stimulation regulates coronavirus entry by selective expression of cell membrane-residential factors

J Virol. 2024-02; 
Xiu-Zhong Zhang, Jing Wang, Wen-Jun Tian, Jing-Ling You, Xiao-Jing Chi, Xiao-Jia Wang
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Gene Synthesis … Vero E6, HEK293T, HCT-8, Huh7, and PK15 cells were obtained from American Type Culture Collection (ATCC) and Vero-S209A was generated by GenScript (Beijing, China), and … Get A Quote

摘要

The eukaryotic translation initiation factor eIF4E can regulate cellular translation via phosphorylation on serine 209. In a recent study, by two rounds of TMT relative quantitative proteomics, we found that phosphorylated eIF4E (p-eIF4E) favors the translation of selected mRNAs, and the encoded proteins are mainly involved in ECM-receptor, focal adhesion, and PI3K-Akt signaling. The current paper is focused on the relationship between p-eIF4E and the downstream host cell proteins, and their presumed effect on efficient entry of PEDV. We found that the depletion of membrane-residential factor TSPAN3, CD63, and ITGB2 significantly inhibited viral invasion of PEDV, and reduced the entry of pseudotyped particles P... More

关键词

CD63, ITGB2, PEDV, TSPAN3, coronavirus, eIF4E phosphorylation, viral entry
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