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Selective disappearance of two secreted host proteins in the course of Semliki Forest virus infection of Aedes albopictus cells.

By F Reigel and H Koblet


One secreted host protein of molecular weight 54,000 (SP 54) disappeared (from 24 to 48 h after infection) in Semliki Forest virus-infected Aedes albopictus cell clone C6/36 grown in both Mitsuhashi-Maramorosch basal medium and tissue culture medium 199 and reappeared when cells went into the permanently infected state. C6/36 is a high virus producer showing a cytopathic effect. A second secreted host protein of molecular weight 62,000 (SP 62) was prominent if cell clone C6/36 was grown in tissue culture medium 199. After infection in this medium, the protein showed a behavior similar to that described for SP 54. These secreted proteins were not affected in two original Aedes albopictus cell lines. SP 54 and SP 62 are monomeric proteins and structurally not related

Topics: Research Article
Year: 1981
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Provided by: PubMed Central
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