Catalytic activation of β-arrestin by GPCRs.
Catalytic activation of β-arrestin by GPCRs.
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DOI:
10.1038/s41586-018-0079-1
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发表时间:
2018-05
期刊:
影响因子:
64.8
通讯作者:
von Zastrow M
中科院分区:
文献类型:
--
作者:
Eichel K;Jullié D;Barsi-Rhyne B;Latorraca NR;Masureel M;Sibarita JB;Dror RO;von Zastrow M
β-arrestins are critical regulator and transducer proteins for G protein-coupled receptors (GPCRs). Cellular β-arrestin function is presently thought to require stable and stoichiometric GPCR/β-arrestin scaffold complex formation driven by the phosphorylated GPCR tail. We demonstrate a distinct and additional mechanism that does not require stable GPCR/β-arrestin scaffolding or the GPCR tail. Instead, it is activated by transient engagement of the GPCR core that destabilizes a conserved inter-domain charge network in β-arrestin. This promotes capture of β-arrestin at the plasma membrane and accumulation in clathrin-coated endocytic structures (CCSs) after GPCR dissociation, requiring a series of β-arrestin interactions with membrane phosphoinositides and CCS lattice proteins. β-arrestin clustering in CCSs without its upstream activating GPCR is associated with a β-arrestin-dependent component of the cellular ERK (Extracellular signal-regulated kinase) response. These results delineate a discrete mechanism of cellular β-arrestin function that is activated catalytically by GPCRs.
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影响因子:
14.8
作者:
McCorvy JD;Butler KV;Kelly B;Rechsteiner K;Karpiak J;Betz RM;Kormos BL;Shoichet BK;Dror RO;Jin J;Roth BL
通讯作者:
Roth BL
影响因子:
64.8
作者:
Lee MH;Appleton KM;Strungs EG;Kwon JY;Morinelli TA;Peterson YK;Laporte SA;Luttrell LM
通讯作者:
Luttrell LM
影响因子:
64.8
作者:
Goodman, OB;Krupnick, JG;Benovic, JL
通讯作者:
Benovic, JL
影响因子:
64.8
作者:
Latorraca NR;Wang JK;Bauer B;Townshend RJL;Hollingsworth SA;Olivieri JE;Xu HE;Sommer ME;Dror RO
通讯作者:
Dror RO
影响因子:
4.8
作者:
Gurevich, VV
通讯作者:
Gurevich, VV