Abstract

The effects of N-linked-oligosaccharide-processing inhibitors on the formation of Semliki Forest virus (SFV) in C6/36 Aedes albopictus cells were investigated. The glycosidase inhibitors deoxynojirimycin, deoxymannojirimycin and swainsonine prevented the formation of Endo-H resistant structures, but had little effect on virus formation and on the biological activities of the virus. Tunicamycin greatly inhibited virus formation, but had little effect on cell-cell fusion from within and the cleavage of p 62. These results indicate that correct glycosylation is not a prerequisite for biological activities of SFV, whereas glycosylation per se is needed for virus production.

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