title: Molecular docking guided 3D-QSAR CoMFA analysis of N-4-Pyrimidinyl-1H-indazol-4-amine inhibitors of leukocyte-specific protein tyrosine kinase.
abstract: Inhibition of leukocyte-specific protein tyrosine kinase (Lck) activity offers one of the approaches for the treatment of T-cell mediated inflammatory disorders including rheumatoid arthritis, transplant rejection and inflammatory bowel disease. To explore the relationship between the structures of the N-4 Pyrimidinyl-1H-indazol-4-amines and their Lck inhibition, 3D-QSAR study using CoMFA analysis have been performed on a dataset of 42 molecules. The bioactive conformation of the template molecule, selected as the most potent molecule 23 from the series was obtained by performing molecular docking at the ATP binding site of Lck, which is then used to build the rest of the molecules in the series. The constructed CoMFA model is robust with r(2)(cv) of 0.603 and conventional r2 of 0.983. The predictive power of the developed model was obtained using a test set of 10 molecules, giving predictive correlation coefficient of 0.921. CoMFA contour analysis was performed to obtain useful information about the structural requirements for the Lck inhibitors which could be utilized in its future design.
authors.affiliation: Centre for Pharmacoinformatics, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, 160 062, Punjab, India.
authors.forename: Mahendra
authors.initials: M
authors.lastname: Awale
authors.forename: C Gopi
authors.initials: CG
authors.lastname: Mohan
mesh_terms: D000814:Aniline Compounds / Q000494:pharmacology*; D001665:Binding Sites; D017076:Computer-Aided Design; D015195:Drug Design; D006801:Humans; D007191:Indazoles / Q000494:pharmacology*; D020128:Inhibitory Concentration 50; D019860:Lymphocyte Specific Protein Tyrosine Kinase p56(lck) / Q000037:antagonists & inhibitors*; D008958:Models, Molecular; D008968:Molecular Conformation; D011743:Pyrimidines / Q000494:pharmacology*; D021281:Quantitative Structure-Activity Relationship
chemical_list: D000814:Aniline Compounds; D007191:Indazoles; D011743:Pyrimidines; D019860:Lymphocyte Specific Protein Tyrosine Kinase p56(lck)