title: Quantitative structure-activity relationships of selective antagonists of glucagon receptor using QuaSAR descriptors.
abstract: In the present paper, quantitative structure activity relationship (QSAR) approach was applied to understand the affinity and selectivity of a novel series of triaryl imidazole derivatives towards glucagon receptor. Statistically significant and highly predictive QSARs were derived for glucagon receptor inhibition by triaryl imidazoles using QuaSAR descriptors of molecular operating environment (MOE) employing computer-assisted multiple regression procedure. The generated QSAR models revealed that factors related to hydrophobicity, molecular shape and geometry predominantly influences glucagon receptor binding affinity of the triaryl imidazoles indicating the relevance of shape specific steric interactions between the molecule and the receptor. Further, QSAR models formulated for selective inhibition of glucagon receptor over p38 mitogen activated protein (MAP) kinase of the compounds in the series highlights that the same structural features, which influence the glucagon receptor affinity, also contribute to their selective inhibition.
authors.affiliation: Department of Pharmacy, Shri G S Institute of Technology and Science, Madhya Pradesh, India.
authors.forename: Palanivelu
authors.initials: P
authors.lastname: Manoj Kumar
authors.forename: Chandrabose
authors.initials: C
authors.lastname: Karthikeyan
authors.forename: Narayana Subbiah
authors.initials: NS
authors.lastname: Hari Narayana Moorthy
authors.forename: Piyush
authors.initials: P
authors.lastname: Trivedi
mesh_terms: D001667:Binding, Competitive; D007093:Imidazoles / Q000737:chemistry / Q000494:pharmacology*; D008024:Ligands; D016014:Linear Models; D015394:Molecular Structure; D021281:Quantitative Structure-Activity Relationship; D018027:Receptors, Glucagon / Q000037:antagonists & inhibitors*; D013237:Stereoisomerism
chemical_list: D007093:Imidazoles; D008024:Ligands; D018027:Receptors, Glucagon