Microsecond dynamics control the HIV-1 Envelope conformation.
Microsecond dynamics control the HIV-1 Envelope conformation.
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DOI:
10.1126/sciadv.adj0396
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发表时间:
2024-02-02
期刊:
影响因子:
13.6
通讯作者:
Henderson, Rory
中科院分区:
文献类型:
--
作者:
Bennett, Ashley L.;Edwards, Robert;Kosheleva, Irina;Saunders, Carrie;Bililign, Yishak;Williams, Ashliegh;Bubphamala, Pimthada;Manosouri, Katayoun;Anasti, Kara;Saunders, Kevin O.;Alam, S. Munir;Haynes, Barton F.;Acharya, Priyamvada;Henderson, Rory
The HIV-1 Envelope (Env) glycoprotein facilitates host cell fusion through a complex series of receptor-induced structural changes. Although remarkable progress has been made in understanding the structures of various Env conformations, microsecond timescale dynamics have not been studied experimentally. Here, we used time-resolved, temperature-jump small-angle x-ray scattering to monitor structural rearrangements in an HIV-1 Env SOSIP ectodomain construct with microsecond precision. In two distinct Env variants, we detected a transition that correlated with known Env structure rearrangements with a time constant in the hundreds of microseconds range. A previously unknown structural transition was also observed, which occurred with a time constant below 10 μs, and involved an order-to-disorder transition in the trimer apex. Using this information, we engineered an Env SOSIP construct that locks the trimer in the prefusion closed state by connecting adjacent protomers via disulfides. Our findings show that the microsecond timescale structural dynamics play an essential role in controlling the Env conformation with impacts on vaccine design. Fast movements in the HIV-1 Envelope protein control access to antibody epitopes with impacts on vaccine design.
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影响因子:
3.7
作者:
Beard H;Cholleti A;Pearlman D;Sherman W;Loving KA
通讯作者:
Loving KA
DOI:
10.3390/v13050852
发表时间:
2021-05-07
期刊:
Viruses
影响因子:
--
作者:
Bennett AL;Henderson R
通讯作者:
Henderson R
DOI:
10.1107/s2059798318006551
发表时间:
2018-06-01
期刊:
Acta crystallographica. Section D, Structural biology
影响因子:
--
作者:
Afonine PV;Poon BK;Read RJ;Sobolev OV;Terwilliger TC;Urzhumtsev A;Adams PD
通讯作者:
Adams PD
影响因子:
6.8
作者:
Merk A;Subramaniam S
通讯作者:
Subramaniam S
影响因子:
5.8
作者:
Hodge, Edgar A.;Naika, Gajendra S.;Kephart, Sally M.;Nguyen, Adam;Zhu, Richard;Benhaim, Mark A.;Guo, Wenjin;Moore, John P.;Hu, Shiu-Lok;Sanders, Rogier W.;Lee, Kelly K.
通讯作者:
Lee, Kelly K.