Differential activation mechanisms of lipid GPCRs by lysophosphatidic acid and sphingosine 1-phosphate.
Differential activation mechanisms of lipid GPCRs by lysophosphatidic acid and sphingosine 1-phosphate.
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DOI:
10.1038/s41467-022-28417-2
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发表时间:
2022-02-08
影响因子:
16.6
通讯作者:
Huang XY
中科院分区:
文献类型:
--
作者:
Liu S;Paknejad N;Zhu L;Kihara Y;Ray M;Chun J;Liu W;Hite RK;Huang XY
Lysophospholipids are bioactive lipids and can signal through G-protein-coupled receptors (GPCRs). The best studied lysophospholipids are lysophosphatidic acid (LPA) and sphingosine 1-phosphate (S1P). The mechanisms of lysophospholipid recognition by an active GPCR, and the activations of lysophospholipid GPCR–G-protein complexes remain unclear. Here we report single-particle cryo-EM structures of human S1P receptor 1 (S1P1) and heterotrimeric Gi complexes formed with bound S1P or the multiple sclerosis (MS) treatment drug Siponimod, as well as human LPA receptor 1 (LPA1) and Gi complexes in the presence of LPA. Our structural and functional data provide insights into how LPA and S1P adopt different conformations to interact with their cognate GPCRs, the selectivity of the homologous lipid GPCRs for S1P versus LPA, and the different activation mechanisms of these GPCRs by LPA and S1P. Our studies also reveal specific optimization strategies to improve the MS-treating S1P1-targeting drugs. Liu et al. report structures of human sphingosine 1-phosphate (S1P) receptor 1 (S1P1) in complex with Gi and S1P or the multiple sclerosis (MS) drug Siponimod, as well as human lysophosphatidic acid (LPA) receptor 1 (LPA1) in complex with Gi and LPA, revealing distinct conformations of the lysophospholipids interacting with their cognate GPCRs.
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DOI:
10.1084/jem.20092210
发表时间:
2010-05-10
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Allende ML;Tuymetova G;Lee BG;Bonifacino E;Wu YP;Proia RL
通讯作者:
Proia RL
DOI:
10.1073/pnas.1106129108
发表时间:
2011-09-13
影响因子:
11.1
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通讯作者:
Chun, Jerold
DOI:
10.1083/jcb.135.4.1071
发表时间:
1996-11
期刊:
The Journal of cell biology
影响因子:
--
作者:
Hecht JH;Weiner JA;Post SR;Chun J
通讯作者:
Chun J
影响因子:
4.8
作者:
Huang, Jianyun;Sun, Yutong;Huang, Xin-Yun
通讯作者:
Huang, Xin-Yun
影响因子:
13.5
作者:
Hisano Y;Hla T
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Hla T