Chandra, Javaregowda VG, Doreswamy BH, Ningaiah S, Bhadraiah UK, Kemparaju K, Madegowda M. Molecular docking of 1H-pyrazole derivatives to receptor tyrosine kinase and protein kinase for screening potential inhibitors.
Bioinformation 2014;
10:413-8. [PMID:
25187680 PMCID:
PMC4135288 DOI:
10.6026/97320630010413]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Accepted: 06/24/2014] [Indexed: 11/23/2022] Open
Abstract
Tyrosine kinase receptor and protein kinases drawn much attention for the scientific fraternity in drug discovery due to its
important role in different cancer, cardiovascular diseases and other hyper-proliferative disorders. Docking studies of pyrazole
derivatives with tyrosine kinase and different serine/threonine protein kinases were employed by using flexible ligand docking
approach of AutoDock 4.2. Among the molecules tested for docking study, 2-(4-chlorophenyl)-5-(3-(4-chlorophenyl)-5-methyl-1-
phenyl-1H-pyrazol-4-yl)-1,3,4-thiadiazole (1b), 2-(4-methoxyphenyl)-5-(3-(4-methoxyphenyl)-5-methyl-1-phenyl-1H-pyrazol-4-yl)-
1,3,4-thiadiazole (1d) and 2-(4-chlorophenyl)-5-(3-(4-chlorophenyl)-5-methyl-1-phenyl-1H-pyrazol-4-yl)-1,3,4-thiadiazole (2b)
revealed minimum binding energy of -10.09, -8.57 and -10.35 kJ/mol with VEGFR-2 (2QU5), Aurora A (2W1G) and CDK2 (2VTO)
protein targets, respectively. These proteins are representatives of plausible models of interactions with different anticancer agents.
All the ligands were docked deeply within the binding pocket region of all the three proteins, showing reasonable hydrogen bonds.
The docking study results showed that these pyrazole derivatives are potential inhibitor of all the three protein targets; and also all
these docked compounds have good inhibition constant, vdW + Hbond + desolv energy with best RMSD value.
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