A computer modelling study of hydrogen bonds in ligand-β-adrenoceptor complexes: its implications in the deduction of a receptor map

Autor: Marcel R. Linschoten, Lambert H.M. Janssen, Joop H. van Lenthe, Jaap Wilting, Sjef J. De Kimpe, Gert W. Klein Kranenbarg
Rok vydání: 1990
Předmět:
Zdroj: Journal of Molecular Structure. 237:339-354
ISSN: 0022-2860
Popis: Recent experimental evidence indicates that the side chain carboxylate group of an aspartic acid residue located at position 113 (Asp i13) in the pharmacologically important /I-adrenergic receptor protein is directly involved in the binding of P-adrenergics, most of which are analogues of phenylethanolamines or phenoxypropanolamines. The binding species is known to be the aminic monocation. This has led to the hypothesis that a direct interaction takes place between the carboxylate group at the receptor and the protonated amino function of the ligand. In the present study, a quantum-mechanical conformational analysis of the ethanolamine-formate complex is presented. This work has enabled us to construct a p-adrenoceptor map which accounts for the binding of some major classes of P-adrenergic ligands. The results of this study suggest that hydrogen bonding plays a role in the interaction between these ligands and the /Iadrenoceptor.
Databáze: OpenAIRE