Title
Binding mode of dihydroquinazolinones with lysozyme and its antifungal activity against Aspergillus species
Author
K. Hemalatha, G. Madhumitha, Lokesh Ravi, V. Gopiesh Khanna, Naif Abdullah Al-Dhabi, Mariadhas Valan Arasu
Year
2016
Journal
Journal of Photochemistry and Photobiology B: Biology
Abstract
Aspergillosis is one of the infectious fungal diseases affecting mainly the immunocompromised patients. The scarcity of the antifungal targets has identified the importance of N-myristoyl transferase (NMT) in the regulation of fungal pathway. The dihydroquinazolinone molecules were designed on the basis of fragments responsible for binding with the target enzyme. The aryl halide, 1(a-g), aryl boronic acid and potassium carbonate were heated together in water and dioxane mixture to yield new Csingle bondC bond formation in dihydroquinazolinone. The bis(triphenylphosphine)palladium(II) dichloride was used as catalyst for the Csingle bondC bond formation. The synthesized series were screened for their in vitro antifungal activity against Aspergillus niger andAspergillus fumigatus. The binding interactions of the active compound with lysozyme were explored using multiple spectroscopic studies. Molecular docking study of dihydroquinazolinones with the enzyme revealed the information regarding various binding forces involved in the interaction.
Instrument
J-715
Keywords
Circular dichroism, Secondary structure, Ligand binding, Pharmaceutical, Biochemistry