Ligand-binding and -scavenging of the chemerin receptor GPR1.
Ligand-binding and -scavenging of the chemerin receptor GPR1.
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DOI:
10.1007/s00018-021-03894-8
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发表时间:
2021-09
期刊:
影响因子:
--
通讯作者:
Beck-Sickinger AG
中科院分区:
文献类型:
--
作者:
Fischer TF;Czerniak AS;Weiß T;Schoeder CT;Wolf P;Seitz O;Meiler J;Beck-Sickinger AG
Tight regulation of cytokines is essential for the initiation and resolution of inflammation. Chemerin, a mediator of innate immunity, mainly acts on chemokine-like receptor 1 (CMKLR1) to induce the migration of macrophages and dendritic cells. The role of the second chemerin receptor, G protein-coupled receptor 1 (GPR1), is still unclear. Here we demonstrate that GPR1 shows ligand-induced arrestin3 recruitment and internalization. The chemerin C-terminus triggers this activation by folding into a loop structure, binding to aromatic residues in the extracellular loops of GPR1. While this overall binding mode is shared between GPR1 and CMKLR1, differences in their respective extracellular loop 2 allowed for the design of the first GPR1-selective peptide. However, our results suggest that ligand-induced arrestin recruitment is not the only mode of action of GPR1. This receptor also displays constitutive internalization, which allows GPR1 to internalize inactive peptides efficiently by an activation-independent pathway. Our results demonstrate that GPR1 takes a dual role in regulating chemerin activity: as a signaling receptor for arrestin-based signaling on one hand, and as a scavenging receptor with broader ligand specificity on the other. The online version contains supplementary material available at 10.1007/s00018-021-03894-8.
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DOI:
10.1084/jem.20080129
发表时间:
2009-01-16
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Albanesi C;Scarponi C;Pallotta S;Daniele R;Bosisio D;Madonna S;Fortugno P;Gonzalvo-Feo S;Franssen JD;Parmentier M;De Pità O;Girolomoni G;Sozzani S
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Sozzani S
DOI:
10.1111/aji.12164
发表时间:
2014-03
期刊:
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影响因子:
--
作者:
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通讯作者:
Zhang JV
影响因子:
14.8
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DOI:
10.1073/pnas.0710487105
发表时间:
2008-01-08
影响因子:
11.1
作者:
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Lee, Kevin J.