Impact of polyphenols on receptor-ligand interactions by NMR: the case of neurotensin (NT)-neurotensin receptor fragment (NTS1) complex.
J Biomol Struct Dyn. 2019 May 03;:1-12
Authors: Richard T, Petit E, Pouységu L, Monti JP, Bondon A, Sylla T, Mérillon JM, Quideau S, Da Costa G
Abstract
Ligand-receptor interactions can be implicated in many pathological events such as chronic neurodegenerative diseases. Thus, the discovery of molecules disrupting this type of interactions could be an interesting therapeutic approach. Polyphenols are well known for their affinity for proteins and several studies have characterized these direct interactions. But studying the direct influence of multi-therapeutic drugs on a ligand-receptor complex relevant to a neurodegenerative disorder is a challenging issue. Solution NMR, molecular modeling and iterative calculations were used to obtain information about the interaction between a phenolic compound, ?-glucogallin (?-2) and a ligand/fragment receptor complex neurotensin (NT) and its receptor NTS1. The ?-2 was shown to bind to NT and a peptidic fragment of its NTS1 receptor, independently. Although the formation of the corresponding ligand-receptor complex did not seem to be affected, this experimental modeling protocol will enable the evaluation of other anti-amyloidogenic compounds such as blockers of NT-NTS1 binding. These types of studies help in understanding the specificity and influence in binding and can provide information to develop new molecules with a putative pharmacological interest. Communicated by Ramaswamy H. Sarma.
PMID: 31046599 [PubMed - as supplied by publisher]
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http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/bichaw/0/bichaw.ahead-of-print/acs.biochem.8b00026/20180226/images/medium/bi-2018-00026r_0005.gif
Biochemistry
DOI: 10.1021/acs.biochem.8b00026
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A novel method based on diffusion NMR for the epitope mapping of ligand binding is presented. The intermolecular NOE builds up during a long diffusion period and creates a deviation from the linearity. The ligand proton nearest the protein generates the strongest NOE from protein during the diffusion...
Impact of polyphenols on receptor-ligand interactions by NMR: the case of neurotensin (NT)-neurotensin receptor fragment (NTS1) complex.
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