Journal
SCIENTIA PHARMACEUTICA
Volume 88, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/scipharm88010002
Keywords
dengue virus; envelope protein; fragment molecular orbital; molecular dynamics; pharmacophore-based screening
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Funding
- National Research Council of Thailand and Health Systems Research Institute (HSRI)
- ASEAN-European Academic University Network (ASEA-UNINET)
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Dengue infection is caused by a mosquito-borne virus, particularly in children, which may even cause death. No effective prevention or therapeutic agents to cure this disease are available up to now. The dengue viral envelope (E) protein was discovered to be a promising target for inhibition in several steps of viral infection. Structure-based virtual screening has become an important technique to identify first hits in a drug screening process, as it is possible to reduce the number of compounds to be assayed, allowing to save resources. In the present study, pharmacophore models were generated using the common hits approach (CHA), starting from trajectories obtained from molecular dynamics (MD) simulations of the E protein complexed with the active inhibitor, flavanone (FN5Y). Subsequently, compounds presented in various drug databases were screened using the LigandScout 4.2 program. The obtained hits were analyzed in more detail by molecular docking, followed by extensive MD simulations of the complexes. The highest-ranked compound from this procedure was then synthesized and tested on its inhibitory efficiency by experimental assays.
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