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Published on: July 30, 2020
Structural studies of B-type Aurora kinase inhibitors using computational methods
Mm Neaz1, M Muddassar, Fa Pasha
1Computational Science Center, Korea Institute of Science and Technology, Seoul, South Korea.
Acta Pharmacologica Sinica
|February 9, 2010
Summary
Designing effective quinazoline-based Aurora B inhibitors involves strategic modifications. Positively charged, bulky, and hydrophobic groups at specific positions enhance inhibitor activity.
Area of Science:
- Medicinal Chemistry
- Structural Biology
- Computational Chemistry
Background:
- Aurora B kinase is a key target for cancer therapy.
- Quinazoline derivatives have shown promise as Aurora B inhibitors.
Purpose of the Study:
- To identify structural features of quinazoline-based compounds that enhance Aurora B inhibitory activity.
- To develop 3D-QSAR models for predicting inhibitor efficacy.
Main Methods:
- Utilized two geometrical 3D-QSAR (three-dimensional quantitative structure-activity relationship) modeling approaches.
- Employed different ligand alignment strategies based on the most active ligand or cocrystal ligand.
Main Results:
- Optimal R1 substituents at position 7 of the quinazoline ring include positively charged, bulky, and hydrophobic groups.
- Bulky and hydrophobic groups around the thiazole ring are crucial for increased inhibitory activity.
Conclusions:
- The bioactive conformation of these inhibitors differs significantly from energy minima.
- Steric, electrostatic, and hydrophobic interactions are critical determinants of inhibitory potency.
