Structures of rhodopsin in complex with G-protein-coupled receptor kinase 1.
Structures of rhodopsin in complex with G-protein-coupled receptor kinase 1.
复制标题
与G蛋白偶联受体激酶1的复合物中的视紫红质结构。
DOI:
10.1038/s41586-021-03721-x
复制
发表时间:
2021-07
期刊:
影响因子:
64.8
通讯作者:
Tesmer JJG
中科院分区:
文献类型:
--
作者:
Chen Q;Plasencia M;Li Z;Mukherjee S;Patra D;Chen CL;Klose T;Yao XQ;Kossiakoff AA;Chang L;Andrews PC;Tesmer JJG
G protein-coupled receptor (GPCR) kinases (GRKs) selectively phosphorylate activated GPCRs, priming them for desensitization. How GRKs recognize these receptors is debated, but a conserved region at their N-termini is essential for this process. Herein we report a series of cryo-EM single particle reconstructions of light activated rhodopsin (Rho*) bound to rhodopsin kinase (GRK1), wherein the N-terminus of GRK1 forms a helix that docks into the open cytoplasmic cleft of Rho*. The helix also packs against the GRK1 kinase domain, stabilizing it in an active configuration. The complex is further stabilized by electrostatic interactions between basic residues conserved in most GPCRs and acidic residues conserved in GRKs. Density for the regulator of G protein signaling homology domain of GRK1 and the C-terminus of rhodopsin are not observed. Crosslinking with mass spectrometry analysis confirms these results and helps explain how the docking of GRKs with activated GPCRs allows for phosphorylation of multiple sites. We identify GRK1 residues whose mutation augments kinase activity and crosslinking with Rho*, as well as those involved in activation by acidic phospholipids. From these data, we present a general model for how a small family of protein kinases can recognize and be activated by hundreds of different GPCRs.
登录
查看更多内容
DOI:
10.1007/s13361-011-0288-4
发表时间:
2012-02
影响因子:
3.2
作者:
Clifford-Nunn, Billy;Showalter, H. D. Hollis;Andrews, Philip C.
通讯作者:
Andrews, Philip C.
影响因子:
4.8
作者:
Bayburt, Timothy H.;Vishnivetskiy, Sergey A.;Gurevich, Vsevolod V.
通讯作者:
Gurevich, Vsevolod V.
DOI:
10.1016/j.ddmec.2010.07.007
发表时间:
2010-01-01
期刊:
Drug discovery today. Disease mechanisms
影响因子:
--
作者:
Brinks, Henriette;Koch, Walter J
通讯作者:
Koch, Walter J
影响因子:
16
作者:
Gao, Yang;Hu, Hongli;Skiniotis, Georgios
通讯作者:
Skiniotis, Georgios
影响因子:
3.6
作者:
Bouley, Renee;Waldschmidt, Helen V.;Tesmer, John J. G.
通讯作者:
Tesmer, John J. G.