Preparation of Japanese encephalitis virus nonstructural protein NS1 obtained from culture fluid of JEV-infected Vero cells |
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Authors: | T Lee K Watanabe C Aizawa A Nomoto H Hashimoto |
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Institution: | (1) Department of Virology, The Kitasato Institute, Minato-ku, Tokyo;(2) Department of Microbiology, Tokyo Metropolitan Institute of Medical Science, Bunkyo-ku, Tokyo, Japan |
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Abstract: | Summary The Japanese encephalitis virus (JEV) nonstructural protein NS1 was released efficiently into culture fluid of JEV-infected Vero cells. The JEV NS1 protein in the infected culture fluid was found almost as a high-molecular-weight form, probably a dimer form of NS1, and was converted to a monomer by boiling. Large amounts of NS1 protein were accumulated in the infected culture fluid. The NS1 protein, separated from JE virions by centrifugation through sucrose layer, could be obtained in large quantities. |
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