Exploring Ligand Binding to Calcitonin Gene-Related Peptide Receptors.
Exploring Ligand Binding to Calcitonin Gene-Related Peptide Receptors.
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DOI:
10.3389/fmolb.2021.720561
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发表时间:
2021
影响因子:
5
通讯作者:
Reynolds CA
中科院分区:
文献类型:
--
作者:
Deganutti G;Atanasio S;Rujan RM;Sexton PM;Wootten D;Reynolds CA
Class B1 G protein-coupled receptors (GPCRs) are important targets for many diseases, including cancer, diabetes, and heart disease. All the approved drugs for this receptor family are peptides that mimic the endogenous activating hormones. An understanding of how agonists bind and activate class B1 GPCRs is fundamental for the development of therapeutic small molecules. We combined supervised molecular dynamics (SuMD) and classic molecular dynamics (cMD) simulations to study the binding of the calcitonin gene-related peptide (CGRP) to the CGRP receptor (CGRPR). We also evaluated the association and dissociation of the antagonist telcagepant from the extracellular domain (ECD) of CGRPR and the water network perturbation upon binding. This study, which represents the first example of dynamic docking of a class B1 GPCR peptide, delivers insights on several aspects of ligand binding to CGRPR, expanding understanding of the role of the ECD and the receptor-activity modifying protein 1 (RAMP1) on agonist selectivity.
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影响因子:
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通讯作者:
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影响因子:
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