Identification of a new region of SARS-CoV S protein critical for viral entry.
Identification of a new region of SARS-CoV S protein critical for viral entry.
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DOI:
10.1016/j.jmb.2009.10.032
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发表时间:
2009-12-11
影响因子:
5.6
通讯作者:
Caffrey M
中科院分区:
文献类型:
--
作者:
Guo Y;Tisoncik J;McReynolds S;Farzan M;Prabhakar BS;Gallagher T;Rong L;Caffrey M
Infection by severe acute respiratory syndrome coronavirus (SARS-CoV) is initiated by specific interactions between the SARS-CoV spike (S) protein and its receptor ACE2. In this report, we screened a peptide library representing the SARS-CoV S protein sequence using a human immunodeficiency virus-based pseudotyping system to identify specific regions that affect viral entry. One of the 169 peptides screened, peptide 9626 (S residues 217–234), inhibited SARS-CoV S-mediated entry of the pseudotyped virions in 293T cells expressing a functional SARS-CoV receptor (human angiotensin-converting enzyme 2) in a dose-dependent manner (IC50 ∼ 11 μM). Alanine scanning mutagenesis was performed to assess the roles of individual residues within this region of S, which was previously uncharacterized. The effects included significant reductions in expression (K223A), viral incorporation (L218A, I230A, and N232A), and reduced viral entry (L224A, L226A, I228A, T231A, and F233A). Taken together, these results reveal a new region of the S protein that is crucial for SARS-CoV entry.
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影响因子:
64.8
作者:
Li W;Moore MJ;Vasilieva N;Sui J;Wong SK;Berne MA;Somasundaran M;Sullivan JL;Luzuriaga K;Greenough TC;Choe H;Farzan M
通讯作者:
Farzan M
DOI:
10.1074/jbc.m400759200
发表时间:
2004-05-14
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Tripet B;Howard MW;Jobling M;Holmes RK;Holmes KV;Hodges RS
通讯作者:
Hodges RS
影响因子:
5.4
作者:
Sui, JH;Li, WH;Marasco, WA
通讯作者:
Marasco, WA
DOI:
10.1074/jbc.m508381200
发表时间:
2006-02-10
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Huang IC;Bosch BJ;Li F;Li W;Lee KH;Ghiran S;Vasilieva N;Dermody TS;Harrison SC;Dormitzer PR;Farzan M;Rottier PJ;Choe H
通讯作者:
Choe H
影响因子:
3.7
作者:
Gallagher TM;Buchmeier MJ
通讯作者:
Buchmeier MJ