Molecular dynamics simulation of oseltamivir resistance in neuraminidase of avian influenza H5N1 virus
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The outbreak of avian influenza virus H5N1 has raised a global concern because of its high virulence and mutation rate. Although two classes of antiviral drugs, M2 ion channel protein inhibitors and neuraminidase inhibitors, are expected to be important in controlling the early stages of a potential pandemic. Different strains of influenza viruses have differing degrees of resistance against the antivirals. In order to analyze the detailed information on the viral resistance, molecular dynamics simulations were carried out for the neuraminidase (NA) complex with oseltamivir. The carboxylate of Glu276 of H252Y NA faces toward the O-ethyl-propyl group of oesltamivir, Glu276 of wild-type NA adopts a conformation pointing away from the oesltamivir. τ2 and τ3 torsional angles fluctuation of the oesltamivir are relatively high for the H252Y mutant NA complex. In addition, there are fewer hydrogen bonds between the oesltamivir and H252Y mutation NA. The results show that H252Y mutation NA has high resistance against the drug.
KeywordsInfluenza virus Molecular dynamics simulations Neuraminidase Oseltamivir
This study was supported by the National Natural Science Foundation of China (No. 60873103), and supported by the Key Project of Natural Science Foundation of China (No. 30830090), and supported by Program for New Century Excellent Talents in University (No.NCET-06-0780), and supported by Visitorg Scholar Foundation of Key Laboratory of Biorheological Science and Technology (No. 2009BST03).
- 6.Wintermeyer SM, Nahata MC (1995) Rimantadine: a clinical perspective. Ann Pharmacother 29:299–310Google Scholar
- 8.Hay AJ et al (1993) In: Hannoun CE (ed) Options for the control of influenza virus II. Excerpta Medica, Amsterdam, pp 281–288Google Scholar
- 25.McKimm-Breschkin JL, Selleck PW, Usman TB et al (2007) Reduced sensitivity of influenza A (H5N1) to oseltamivir. Emerging Infectious Diseases 13:1354–1357Google Scholar
- 27.Frisch MJ, Trucks GW, Schlegel HB et al (1998) Gaussian98, Revision A.7. Gaussian Inc, Pittsburgh, PAGoogle Scholar