Cold co-extraction of hemagglutinin and matrix M1 protein from influenza virus A by a combination of non-ionic detergents allows for visualization of the raft-like nature of the virus envelope

Cold co-extraction of hemagglutinin and matrix M1 protein from influenza virus A by a combination... Membrane solubilization with a mixture of cold non-ionic detergents has been applied to isolate detergent-resistant membranes from intact virus A lipid bilayer. Association of the viral envelope glycoproteins and M1 into a raft lipid-protein complex was verified via detergent insolubility experiments, and the M1:HA stoichiometry of the proposed supramolecular complex was estimated via amino acid analysis. Electron microscopy and dynamic light scattering data revealed that these lipid-protein rafts form unilamellar vesicles with HA spikes on their surfaces similar to influenza virus virions. Together, our data suggest that the cold co-extraction technique visualizes the raft-like nature of the viral envelope and demonstrates the interaction of matrix M1 protein with the envelope. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Cold co-extraction of hemagglutinin and matrix M1 protein from influenza virus A by a combination of non-ionic detergents allows for visualization of the raft-like nature of the virus envelope

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Publisher
Springer Vienna
Copyright
Copyright © 2008 by Springer-Verlag
Subject
Biomedicine; Infectious Diseases; Medical Microbiology ; Virology
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-008-0214-7
Publisher site
See Article on Publisher Site

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