Cryo-EM structure of a native, fully glycosylated, cleaved HIV-1 envelope trimer.
Cryo-EM structure of a native, fully glycosylated, cleaved HIV-1 envelope trimer.
复制标题
DOI:
10.1126/science.aad2450
复制
发表时间:
2016-03-04
期刊:
影响因子:
--
通讯作者:
Ward AB
中科院分区:
文献类型:
--
作者:
Lee JH;Ozorowski G;Ward AB
The envelope glycoprotein trimer (Env) on the surface of HIV-1 recognizes CD4+ T cells and mediates viral entry. During this process, Env undergoes large conformational rearrangements making it difficult to study in its native state. Soluble, stabilized trimers have provided valuable insights into Env structure, but they lack the hydrophobic membrane proximal external region (MPER), which is an important target of broadly neutralizing antibodies (bnAbs), the transmembrane domain and the cytoplasmic tail (CT). Here we present a 4.2 Å resolution cryoEM structure of a clade B virus Env lacking only the cytoplasmic tail (EnvΔCT) and stabilized by the bnAb PGT151, and an 8.8 Å resolution reconstruction of EnvΔCT in complex with PGT151 and MPER-targeting antibody 10E8. These structures provide new insights into the wild-type Env structure. The high-resolution cryoEM structures of a membrane-derived HIV-1 envelope glycoprotein trimer reveal the native structure, glycosylation, and the epitopes of broadly neutralizing antibodies PGT151 and 10E8, and provides an important comparator for soluble SOSIP trimers being developed as vaccine candidates.
登录
查看更多内容
影响因子:
64.8
作者:
Liu, Jun;Bartesaghi, Alberto;Borgnia, Mario J.;Sapiro, Guillermo;Subramaniam, Sriram
通讯作者:
Subramaniam, Sriram
影响因子:
5.4
作者:
Go, Eden P.;Herschhorn, Alon;Desaire, Heather
通讯作者:
Desaire, Heather
影响因子:
3.7
作者:
Guenaga J;Dosenovic P;Ofek G;Baker D;Schief WR;Kwong PD;Karlsson Hedestam GB;Wyatt RT
通讯作者:
Wyatt RT
影响因子:
6.7
作者:
Derking R;Ozorowski G;Sliepen K;Yasmeen A;Cupo A;Torres JL;Julien JP;Lee JH;van Montfort T;de Taeye SW;Connors M;Burton DR;Wilson IA;Klasse PJ;Ward AB;Moore JP;Sanders RW
通讯作者:
Sanders RW
影响因子:
64.8
作者:
Huang J;Ofek G;Laub L;Louder MK;Doria-Rose NA;Longo NS;Imamichi H;Bailer RT;Chakrabarti B;Sharma SK;Alam SM;Wang T;Yang Y;Zhang B;Migueles SA;Wyatt R;Haynes BF;Kwong PD;Mascola JR;Connors M
通讯作者:
Connors M