In silico screening of natural products targeting chorismate synthase

Mohammed  Zaghlool Al-Khayyat

doi:10.15649/2346075X.505

Authors

Mohammed Zaghlool Al-Khayyat Biology Department, College of Education for Pure Sciences, University of Mosul

DOI:

https://doi.org/10.15649/2346075X.505

Keywords:

Amentoflavone; Docking; Homology modeling; Pharmacokinetics.

Abstract

Introduction: Chorismate synthase catalyzes the final step in shikimate acid pathway involved in synthesis of aromatic compounds in bacteria.
This enzyme can be a possible molecular target for design of antibiotics. Materials and Methods: Homology modeling and molecular docking
were performed to screen about one hundred natural compounds in order to find inhibitors of enzymes as a possible new target. A model was
built by SWISS-MODEL and its quality was assessed by ERRAT, ProSA, Rampage and MolProbity servers. Docking experiments were performed
and pharmacokinetics and toxicities were studied by admetSAR. Results: The predicted model was reliable to be used in docking experiments.
Amentoflavone had the highest binding affinity of -10.0 Kcal/mol. Probabilities indicated that rotenone may inhibit P-glycoprotein I, hinokiflavone and silybin may inhibit P-glycoprotein II, while taspine acts on both types of P-glycoproteins. Amentofalavone, hinokiflavone, rotenone and silybin have a probability of inhibiting cytochromes that are involved in oxidation stage of metabolism. Conclusions: These compounds had binding affinities towards FMN binding site of the enzyme model and may be considered in the research for new antibacterial agents but only when their drug interactions are fully investigated.

Author Biography

Mohammed Zaghlool Al-Khayyat, Biology Department, College of Education for Pure Sciences, University of Mosul

Biology Department, College of Education for Pure Sciences, University of Mosul.

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