Structure and immune recognition of trimeric pre-fusion HIV-1 Env.
Structure and immune recognition of trimeric pre-fusion HIV-1 Env.
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DOI:
10.1038/nature13808
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发表时间:
2014-10-23
期刊:
影响因子:
64.8
通讯作者:
Kwong, Peter D.
中科院分区:
文献类型:
--
作者:
Pancera, Marie;Zhou, Tongqing;Druz, Aliaksandr;Georgiev, Ivelin S.;Soto, Cinque;Gorman, Jason;Huang, Jinghe;Acharya, Priyamvada;Chuang, Gwo-Yu;Ofek, Gilad;Stewart-Jones, Guillaume B. E.;Stuckey, Jonathan;Bailer, Robert T.;Joyce, M. Gordon;Louder, Mark K.;Tumba, Nancy;Yang, Yongping;Zhang, Baoshan;Cohen, Myron S.;Haynes, Barton F.;Mascola, John R.;Morris, Lynn;Munro, James B.;Blanchard, Scott C.;Mothes, Walther;Connors, Mark;Kwong, Peter D.
The HIV-1-envelope (Env) spike, comprising three gp120 and three gp41 subunits, is a conformational machine that facilitates HIV-1 entry by rearranging from a mature unliganded state, through receptor-bound intermediates, to a postfusion state. As the sole viral antigen on the HIV-1-virion surface, Env is both the target of neutralizing antibodies and a focus of vaccine efforts. Here we report the structure at 3.5-Å resolution for an HIV-1-Env trimer captured in a mature closed state by antibodies PGT122 and 35O22. This structure reveals the prefusion conformation of gp41, indicates rearrangements needed for fusion activation, and defines parameters of immune evasion and immune recognition. Prefusion gp41 encircles N- and C-terminal strands of gp120 with four helices that form a membrane-proximal collar, fastened by insertion of a fusion peptide-proximal methionine into a gp41-tryptophan clasp. Spike rearrangements required for entry likely involve opening the clasp and expelling the termini. N-linked glycosylation and sequence-variable regions cover the prefusion closed spike: we used chronic cohorts to map the prevalence and location of effective HIV-1-neutralizing responses, which were distinguished by their recognition of N-linked glycan and tolerance for epitope-sequence variation.
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影响因子:
16.8
作者:
通讯作者:
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影响因子:
32.4
作者:
Falkowska, Emilia;Le, Khoa M.;Ramos, Alejandra;Doores, Katie J.;Lee, Jeong Hyun;Blattner, Claudia;Ramirez, Alejandro;Derking, Ronald;van Gils, Marit J.;Liang, Chi-Hui;Mcbride, Ryan;von Bredow, Benjamin;Shivatare, Sachin S.;Wu, Chung-Yi;Chan-Hui, Po-Ying;Liu, Yan;Feizi, Ten;Zwick, Michael B.;Koff, Wayne C.;Seaman, Michael S.;Swiderek, Kristine;Moore, John P.;Evans, David;Paulson, James C.;Wong, Chi-Huey;Ward, Andrew B.;Wilson, Ian A.;Sanders, Rogier W.;Poignard, Pascal;Burton, Dennis R.
通讯作者:
Burton, Dennis R.
影响因子:
5.4
作者:
CHEN, CH;MATTHEWS, TJ;GREENBERG, ML
通讯作者:
GREENBERG, ML
影响因子:
3.4
作者:
Aitken, Colin Echeverria;Marshall, R. Andrew;Puglisi, Joseph D.
通讯作者:
Puglisi, Joseph D.
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K