Structural biology. Structural basis for chemokine recognition and activation of a viral G protein-coupled receptor.
Structural biology. Structural basis for chemokine recognition and activation of a viral G protein-coupled receptor.
复制标题
DOI:
10.1126/science.aaa5026
复制
发表时间:
2015-03-06
期刊:
影响因子:
--
通讯作者:
Garcia KC
中科院分区:
文献类型:
--
作者:
Burg JS;Ingram JR;Venkatakrishnan AJ;Jude KM;Dukkipati A;Feinberg EN;Angelini A;Waghray D;Dror RO;Ploegh HL;Garcia KC
Chemokines are small proteins that function as immune modulators through activation of chemokine G protein–coupled receptors (GPCRs). Several viruses also encode chemokines and chemokine receptors to subvert the host immune response. How protein ligands activate GPCRs remains unknown. We report the crystal structure at 2.9 angstrom resolution of the human cytomegalovirus GPCR US28 in complex with the chemokine domain of human CX3CL1 (fractalkine). The globular body of CX3CL1 is perched on top of the US28 extracellular vestibule, whereas its amino terminus projects into the central core of US28. The transmembrane helices of US28 adopt an active-state–like conformation. Atomic-level simulations suggest that the agonist-independent activity of US28 may be due to an amino acid network evolved in the viral GPCR to destabilize the receptor’s inactive state.
登录
查看更多内容
DOI:
10.1073/pnas.1110499108
发表时间:
2011-11-15
影响因子:
11.1
作者:
Dror, Ron O.;Arlow, Daniel H.;Shaw, David E.
通讯作者:
Shaw, David E.
影响因子:
7.3
作者:
Veldkamp CT;Seibert C;Peterson FC;De la Cruz NB;Haugner JC 3rd;Basnet H;Sakmar TP;Volkman BF
通讯作者:
Volkman BF
影响因子:
64.8
作者:
Rosenbaum, Daniel M.;Rasmussen, Soren G. F.;Kobilka, Brian K.
通讯作者:
Kobilka, Brian K.
影响因子:
2.9
作者:
Mizoue, LS;Bazan, JF;Handel, TM
通讯作者:
Handel, TM
DOI:
10.1146/annurev-pharmtox-032112-135923
发表时间:
2013
影响因子:
12.5
作者:
Katritch V;Cherezov V;Stevens RC
通讯作者:
Stevens RC