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Docking and molecular dynamics studies of peripheral site ligand–oximes as reactivators of sarin-inhibited human acetylcholinesterase
Authors:Joyce S F D de Almeida  Teobaldo R Cuya Guizado  Ana P Guimarães  Teodorico C Ramalho  Arlan S Gonçalves  Martijn C de Koning
Institution:1. Laboratory of Molecular Modeling Applied to Chemical and Biological Defense (LMACBD), Military Institute of Engineering, Pra?a General Tibúrcio 80, 22290-270 Rio de Janeiro, Brazil;2. Faculty of Technology, State University of Rio de Janeiro, Rod. Presidente Dutra Km 298, Pólo Industrial, 27537-000 Resende, RJ, Brazil;3. Chemistry Department, Federal University of Vi?osa, Avenida Peter Henry Rolfs, s/n-Campus Universitário, Zip CPO Box, Vi?osa, MG, Brazil;4. Chemistry Department, Federal University of Lavras, PO Box 3037, 37200-000 Lavras, MG, Brazil;5. Faculty of Informatics and Management, Center for Basic and Applied Research, University of Hradec Kralove, Hradec Kralove, Czech Republic;6. Federal Institute of Education, Science and Technology, Avenida Ministro Salgado Filho, S/No – Bairro Soteco, Zip Code 29106-010 Vila Velha, Espírito Santo/ES, Brazil;7. TNO Defense, Security &8. Safety, PO Box 45, 2280 AA Rijswijk, The Netherlands
Abstract:In the present work, we performed docking and molecular dynamics simulations studies on two groups of long-tailored oximes designed as peripheral site binders of acetylcholinesterase (AChE) and potential penetrators on the blood brain barrier. Our studies permitted to determine how the tails anchor in the peripheral site of sarin-inhibited human AChE, and which aminoacids are important to their stabilization. Also the energy values obtained in the docking studies corroborated quite well with the experimental results obtained before for these oximes.
Keywords:acetylcholinesterase  nerve agents  peripheral site  oximes  reactivation
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