Model of ligand-triggered information transmission in G-protein coupled receptor complexes.
Model of ligand-triggered information transmission in G-protein coupled receptor complexes.
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DOI:
10.3389/fendo.2023.1111594
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发表时间:
2023
影响因子:
5.2
通讯作者:
中科院分区:
文献类型:
--
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We present a model for the effects of ligands on information transmission in G-Protein Coupled Receptor (GPCR) complexes. The model is built ab initio entirely on principles of statistical mechanics and tenets of information transmission theory and was validated in part using agonist-induced effector activity and signaling bias for the angiotensin- and adrenergic-mediated signaling pathways, with in vitro observations of phosphorylation sites on the C tail of the GPCR complex, and single-cell information-transmission experiments. The model extends traditional kinetic models that form the basis for many existing models of GPCR signaling. It is based on maximizing the rates of entropy production and information transmission through the GPCR complex. The model predicts that (1) phosphatase-catalyzed reactions, as opposed to kinase-catalyzed reactions, on the C-tail and internal loops of the GPCR are responsible for controlling the signaling activity, (2) signaling favors the statistical balance of the number of switches in the ON state and the number in the OFF state, and (3) biased-signaling response depends discontinuously on ligand concentration.
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DOI:
10.1042/bcj20160819
发表时间:
2018-11-09
期刊:
The Biochemical journal
影响因子:
--
作者:
Chakravorty D;Assmann SM
通讯作者:
Assmann SM
影响因子:
64.8
作者:
Eichel K;Jullié D;Barsi-Rhyne B;Latorraca NR;Masureel M;Sibarita JB;Dror RO;von Zastrow M
通讯作者:
von Zastrow M
影响因子:
4.8
作者:
Eichmann, T;Lorenz, K;Quitterer, U
通讯作者:
Quitterer, U
影响因子:
4
作者:
KAUFFMAN, SA
通讯作者:
KAUFFMAN, SA
影响因子:
3.4
作者:
Capogna, Marco;Castillo, Pablo E.;Maffei, Arianna
通讯作者:
Maffei, Arianna