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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 27, Number 2
BKCSDE 27(2)
February 20, 2006 

Quantitative Structure-Activity Relationships and Molecular Docking Studies of P56 LCK Inhibitors
Nagakumar Bharatham, Kavitha Bharatham, Keun Woo Lee*
P56 LCK, Protein tyrosine kinase (PTKs), Benzothiazole derivatives, 3D-QSAR, GOLD molecular docking
Three-dimensional quantitative structure-activity relationship (3D-QSAR) models were developed for 67 molecules of 2-amino-benzothiazole-6-anilide derivatives against lymphocyte-specific protein tyrosine kinase (P56 LCK). The molecular field analysis (MFA) and receptor surface analysis (RSA) were employed for QSAR studies and the predictive ability of the model was validated by 15 test set molecules. Structure-based investigations using molecular docking simulation were performed with the crystal structure of P56 LCK. Good correlation between predicted fitness scores versus observed activities was demonstrated. The results suggested that the nature of substitutions at the 2-amino and 6-anilide positions were crucial in enhancing the activity, thereby providing new guidelines for the design of novel P56 LCK inhibitors.
266 - 272
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