ArticleJournal of molecular modeling2021
CHARMM force field generation for a cationic thiophene oligomer with ffTK.
Article in Journal of molecular modeling, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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3 authors at 1 institution in 1 country.
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Abstract
In the present work, CHARMM force field parameters are generated for a cationic oligomer of N, N, N-trimethyl-3-(4-methylthiophen-3-yl) oxy) propan-1-aminium) which has the potential for sensing biological molecules such as nucleic acids, nucleobases. We have used ffTK (force field tool kit) to obtain potential parameters. MD simulations are performed for 20-mer and its complexes with AMP and ATP. The simulation results are analyzed to see the number of phosphates in adenosine nucleotides effects on the structure of the backbone of oligomer. The UV-VIS calculations for the conformers which possess the most probable radius of gyration are carried out and compared to the experimental ones to validate the generated force field. Graphical Abstract Recent studies have shown that, biologically important anions (ATP, AMP, vb.) change the spectroscopic properties of cationic polythiophenes (CPT) in the solutions. This work aims to generate CHARMM compatible force field parameters for a CPT to explain experimental studies. The type of interactions will be investigated deeply to lead new biosensor studies by examining the formation and the structure of complexes that consist of a oligothiophene and biological molecules, ATP, AMP by molecular dynamic simulations.
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