Distinct conformational states of HIV-1 gp41 are recognized by neutralizing and non-neutralizing antibodies.
Distinct conformational states of HIV-1 gp41 are recognized by neutralizing and non-neutralizing antibodies.
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DOI:
10.1038/nsmb.1950
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发表时间:
2010-12
影响因子:
16.8
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中科院分区:
文献类型:
--
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HIV-1 envelope glycoprotein gp41 undergoes large conformational changes to drive fusion of viral and target cell membranes, thereby exhibiting at least three distinct conformations during the viral entry process. Neutralizing antibodies against gp41 block HIV-1 infection by targeting its membrane proximal external region in a fusion-intermediate state. Here we report biochemical and structural evidence that non-neutralizing antibodies, capable of binding with high affinity to an immunodominant segment adjacent to the neutralizing epitopes in the membrane-proximal region, only recognize a gp41 conformation when membrane fusion is complete. We propose that these non-neutralizing antibodies are induced in HIV-1 infected patients by gp41 antigens in a triggered, postfusion form and contribute to production of ineffective humoral responses. These results have important implications for gp41-based vaccine design by rational strategies.
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DOI:
10.1083/jcb.140.2.315
发表时间:
1998-01-26
期刊:
The Journal of cell biology
影响因子:
--
作者:
Muñoz-Barroso I;Durell S;Sakaguchi K;Appella E;Blumenthal R
通讯作者:
Blumenthal R
影响因子:
5.4
作者:
Moore, PL;Crooks, ET;Binley, JM
通讯作者:
Binley, JM
影响因子:
56.9
作者:
BURTON, DR;PYATI, J;BARBAS, CF
通讯作者:
BARBAS, CF
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH
DOI:
10.1126/science.1170481
发表时间:
2009-06-12
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Aoki ST;Settembre EC;Trask SD;Greenberg HB;Harrison SC;Dormitzer PR
通讯作者:
Dormitzer PR