6533b82bfe1ef96bd128ce9d

RESEARCH PRODUCT

Resolving the Benzophenone DNA-Photosensitization Mechanism at QM/MM Level

Meilani WibowoAntonio MonariDaniel Roca-sanjuánMarco GaravelliXavier AssfeldElise Dumont

subject

Photosensitizing AgentsDNA PhotosensitizationDNA damageChemistryDNAMolecular Dynamics SimulationPhotochemistryMolecular mechanicsQM/MM3. Good healthThymineNucleobaseQM/MM[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistryBenzophenoneschemistry.chemical_compoundMolecular dynamicsBenzophenoneEnergy TransferBenzophenoneQuantum TheoryGeneral Materials SciencePhysical and Theoretical ChemistryDNA

description

International audience; Benzophenone, the parent of the diarylketone family, is a versatile compound commonly used as a UV blocker. It may also trigger triplet-based DNA photosensitization. Therefore, benzophenone is involved in DNA photodamage induction. In the absence of experimentally resolved structure, the mechanism of DNA damage production remains elusive. Employing a hybrid quantum mechanics/molecular mechanics approach, here we address the spin transfer mechanism between this drug and proximal thymine, that is, the DNA nucleobase most prone to suffer triplet damages.

10.1021/jz502562dhttps://hal.archives-ouvertes.fr/hal-01114786