Molecular interaction of fenvalarate with actin

Area of Science:

• Chemical Crystallography
• Molecular Toxicology
• Biochemistry

Background:

• Fenvalarate, an insecticide, has a complex chemical structure.
• Understanding its molecular interactions is crucial for toxicological assessment.
• Intermolecular forces stabilize Fenvalarate and influence its biological activity.

Purpose of the Study:

• To determine the crystal structure of Fenvalarate using X-ray crystallography.
• To investigate the structure-activity relationship of Fenvalarate.
• To elucidate Fenvalarate's mechanism of action against insect and mammalian β-actin.

Main Methods:

• X-ray crystallography for structural determination.
• Computational docking studies to predict binding affinities.
• Analysis of intermolecular interactions (C-H…O, C-H…Cl, C-H…π, C-H…N).

Main Results:

• The crystal structure of Fenvalarate was successfully elucidated.
• Fenvalarate exhibits strong binding affinity to insect β-actin ( -7.71 kcal/mol, Ki = 2.23 µM).
• Moderate binding affinity was observed with mammalian β-actin ( -7.07 kcal/mol, Ki = 6.54 µM).

Conclusions:

• The crystal structure provides insights into Fenvalarate's stability and interactions.
• Fenvalarate acts as a potent insecticide by targeting insect β-actin.
• The compound shows moderate toxicity towards mammalian β-actin, suggesting potential for selective toxicity.