Tethered agonist activated ADGRF1 structure and signalling analysis reveal basis for G protein coupling.
Tethered agonist activated ADGRF1 structure and signalling analysis reveal basis for G protein coupling.
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DOI:
10.1038/s41467-023-38083-7
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发表时间:
2023-04-29
影响因子:
16.6
通讯作者:
Blacklow, Stephen C.
中科院分区:
文献类型:
--
作者:
Jones, Daniel T. D.;Dates, AndrewN.;Rawson, Shaun D.;Burruss, Maggie M.;Lipper, Colin H.;Blacklow, Stephen C.
Adhesion G Protein Coupled Receptors (aGPCRs) have evolved an activation mechanism to translate extracellular force into liberation of a tethered agonist (TA) to effect cell signalling. We report here that ADGRF1 can signal through all major G protein classes and identify the structural basis for a previously reported Gαq preference by cryo-EM. Our structure shows that Gαq preference in ADGRF1 may derive from tighter packing at the conserved F569 of the TA, altering contacts between TM helix I and VII, with a concurrent rearrangement of TM helix VII and helix VIII at the site of Gα recruitment. Mutational studies of the interface and of contact residues within the 7TM domain identify residues critical for signalling, and suggest that Gαs signalling is more sensitive to mutation of TA or binding site residues than Gαq. Our work advances the detailed molecular understanding of aGPCR TA activation, identifying features that potentially explain preferential signal modulation. ADGRF1 is an adhesion GPCR that signals when a bound ligand induces liberation of an intramolecular tethered agonist. Here, the authors show that ADGRF1 can signal though all major G protein classes and identify a structural basis for Gq selectivity.
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DOI:
10.1093/protein/gzw049
发表时间:
2016-12
期刊:
Protein engineering, design & selection : PEDS
影响因子:
--
作者:
Carpenter B;Tate CG
通讯作者:
Tate CG
影响因子:
3.8
作者:
Lum, Amy M.;Wang, Bruce B.;Wabl, Matthias
通讯作者:
Wabl, Matthias
影响因子:
4.8
作者:
Demberg, Lilian M.;Winkler, Jana;Liebscher, Ines
通讯作者:
Liebscher, Ines
影响因子:
11.4
作者:
Arac, Demet;Boucard, Antony A.;Bolliger, Marc F.;Nguyen, Jenna;Soltis, S. Michael;Suedhof, Thomas C.;Brunger, Axel T.
通讯作者:
Brunger, Axel T.
DOI:
10.1107/s2059798318006551
发表时间:
2018-06-01
期刊:
Acta crystallographica. Section D, Structural biology
影响因子:
--
作者:
Afonine PV;Poon BK;Read RJ;Sobolev OV;Terwilliger TC;Urzhumtsev A;Adams PD
通讯作者:
Adams PD