Activation and signaling mechanism revealed by GPR119-G(s) complex structures.
Activation and signaling mechanism revealed by GPR119-G(s) complex structures.
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GPR119-Gs复合物结构揭示的激活和信号传导机制
DOI:
10.1038/s41467-022-34696-6
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发表时间:
2022-11-17
影响因子:
16.6
通讯作者:
Qiao, Anna
中科院分区:
文献类型:
--
作者:
Qian, Yuxia;Wang, Jiening;Yang, Linlin;Liu, Yanru;Wang, Lina;Liu, Wei;Lin, Yun;Yang, Hong;Ma, Lixin;Ye, Sheng;Wu, Shan;Qiao, Anna
Agonists selectively targeting cannabinoid receptor-like G-protein-coupled receptor (GPCR) GPR119 hold promise for treating metabolic disorders while avoiding unwanted side effects. Here we present the cryo-electron microscopy (cryo-EM) structures of the human GPR119-Gs signaling complexes bound to AR231453 and MBX-2982, two representative agonists reported for GPR119. The structures reveal a one-amino acid shift of the conserved proline residue of TM5 that forms an outward bulge, opening up a hydrophobic cavity between TM4 and TM5 at the middle of the membrane for its endogenous ligands-monounsaturated lipid metabolites. In addition, we observed a salt bridge between ICL1 of GPR119 and Gβs. Disruption of the salt bridge eliminates the cAMP production of GPR119, indicating an important role of Gβs in GPR119-mediated signaling. Our structures, together with mutagenesis studies, illustrate the conserved binding mode of the chemically different agonists, and provide insights into the conformational changes in receptor activation and G protein coupling. Agonists selectively targeting GPR119 hold promise for treating metabolic disorders. Here, authors reveal that GPR119 adopts a non-canonical consensus structural scaffold with an extended ligand-binding pocket for chemically different agonists.
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影响因子:
64.8
作者:
Jumper J;Evans R;Pritzel A;Green T;Figurnov M;Ronneberger O;Tunyasuvunakool K;Bates R;Žídek A;Potapenko A;Bridgland A;Meyer C;Kohl SAA;Ballard AJ;Cowie A;Romera-Paredes B;Nikolov S;Jain R;Adler J;Back T;Petersen S;Reiman D;Clancy E;Zielinski M;Steinegger M;Pacholska M;Berghammer T;Bodenstein S;Silver D;Vinyals O;Senior AW;Kavukcuoglu K;Kohli P;Hassabis D
通讯作者:
Hassabis 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
影响因子:
64.8
作者:
Choe, Hui-Woog;Kim, Yong Ju;Ernst, Oliver P.
通讯作者:
Ernst, Oliver P.
影响因子:
64.8
作者:
Huang W;Manglik A;Venkatakrishnan AJ;Laeremans T;Feinberg EN;Sanborn AL;Kato HE;Livingston KE;Thorsen TS;Kling RC;Granier S;Gmeiner P;Husbands SM;Traynor JR;Weis WI;Steyaert J;Dror RO;Kobilka BK
通讯作者:
Kobilka BK
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH