Evaluation of Operational Models of Agonism and Allosterism at Receptors with Multiple Orthosteric Binding Sites.
Allosteric Regulation
/ drug effects
Binding Sites
/ drug effects
Calcium
/ metabolism
Calcium Ionophores
/ pharmacology
Computer Simulation
Dose-Response Relationship, Drug
Drug Agonism
Drug Synergism
HEK293 Cells
Humans
Ligands
Models, Biological
Receptor, Metabotropic Glutamate 5
/ agonists
Receptor, Muscarinic M4
/ agonists
Receptors, Calcium-Sensing
/ agonists
Journal
Molecular pharmacology
ISSN: 1521-0111
Titre abrégé: Mol Pharmacol
Pays: United States
ID NLM: 0035623
Informations de publication
Date de publication:
01 2020
01 2020
Historique:
received:
12
08
2019
accepted:
04
11
2019
pubmed:
11
11
2019
medline:
24
4
2020
entrez:
10
11
2019
Statut:
ppublish
Résumé
Current operational models of agonism and allosterism quantify ligand actions at receptors where agonist concentration-response relationships are nonhyperbolic by introduction of a transducer slope that relates receptor occupancy to response. However, for some receptors nonhyperbolic concentration-response relationships arise from multiple endogenous agonist molecules binding to a receptor in a cooperative manner. Thus, we developed operational models of agonism in systems with cooperative agonist binding and evaluated the models by simulating data describing agonist effects. The models were validated by analyzing experimental data demonstrating the effects of agonists and allosteric modulators at receptors where agonist binding follows hyperbolic (M
Identifiants
pubmed: 31704718
pii: mol.119.118091
doi: 10.1124/mol.119.118091
doi:
Substances chimiques
CASR protein, human
0
CHRM4 protein, human
0
Calcium Ionophores
0
GRM5 protein, human
0
Ligands
0
Receptor, Metabotropic Glutamate 5
0
Receptor, Muscarinic M4
0
Receptors, Calcium-Sensing
0
Calcium
SY7Q814VUP
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
35-45Commentaires et corrections
Type : ErratumIn
Informations de copyright
Copyright © 2019 by The American Society for Pharmacology and Experimental Therapeutics.