S-Palmitoylation and Sterol Interactions Mediate Antiviral Specificity of IFITMs.
S-Palmitoylation and Sterol Interactions Mediate Antiviral Specificity of IFITMs.
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DOI:
10.1021/acschembio.2c00176
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发表时间:
2022-08-19
影响因子:
4
通讯作者:
Hang, Howard C.
中科院分区:
文献类型:
--
作者:
Das, Tandrila;Yang, Xinglin;Lee, Hwayoung;Garst, Emma H.;Valencia, Estefania;Chandran, Kartik;Im, Wonpil;Hang, Howard C.
Interferon-induced transmembrane proteins (IFITM1, 2 and 3) are important antiviral proteins that are active against many viruses, including influenza A virus (IAV), dengue virus (DENV), Ebola virus (EBOV), Zika virus (ZIKV) and severe acute respiratory syndrome coronavirus (SARS-CoV). IFITM proteins exhibit specificity in activity, but their distinct mechanisms of action and regulation are unclear. Since S-palmitoylation and cholesterol homeostasis are crucial for viral infections, we investigated IFITM interactions with cholesterol by photoaffinity crosslinking in mammalian cells along with molecular dynamic simulations and nuclear magnetic resonance analysis in vitro. These studies suggest that cholesterol can directly interact with S-palmitoylated IFITMs in cells and alter the conformation of IFITMs in membrane bilayers. Notably, we discovered that the S-palmitoylation levels regulate differential IFITM protein interactions with cholesterol in mammalian cells and specificity of antiviral activity towards IAV, SARS-CoV-2 and EBOV. Our studies suggest that modulation of IFITM S-palmitoylation levels and cholesterol interaction influence host susceptibility to different viruses.
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影响因子:
64.8
作者:
Cote, Marceline;Misasi, John;Ren, Tao;Bruchez, Anna;Lee, Kyungae;Filone, Claire Marie;Hensley, Lisa;Li, Qi;Ory, Daniel;Chandran, Kartik;Cunningham, James
通讯作者:
Cunningham, James
影响因子:
2.9
作者:
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van der Wel, Patrick C. A.
影响因子:
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通讯作者:
Sanjana NE
DOI:
10.1126/science.aag1417
发表时间:
2017-03-24
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Castellano BM;Thelen AM;Moldavski O;Feltes M;van der Welle RE;Mydock-McGrane L;Jiang X;van Eijkeren RJ;Davis OB;Louie SM;Perera RM;Covey DF;Nomura DK;Ory DS;Zoncu R
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影响因子:
7.7
作者:
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通讯作者:
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