1887

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Volume 74, Issue 4

The role of gp55 -glycosylation in pathogenesis of Friend spleen focus-forming virus Free

Abstract

The product of the envelope gene (gp55) of Friend spleen focus-forming virus is responsible for the acute form of erythroleukaemia caused by this virus. In order to investigate the role that the four known -linked carbohydrate side-chains of gp55 play in pathogenesis, we have inactivated the four -glycosylation signals by mutating the asparagine residues of these four sites into serine. When glycosylation sites 1 and/or 2 were altered, the viruses remained fully pathogenic. However, mutation at either of glycosylation sites 3 or 4 rendered the virus apathogenic, independent of mutations at other sites. Furthermore, when site 3 was changed, a new product appeared which seemed to have acquired a carbohydrate chain at a position normally not glycosylated, presumably at position Asn.

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  • Accepted:
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© Society for General Microbiology 1993
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1993-04-01
2024-04-30
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The role of gp55 N-glycosylation in pathogenesis of Friend spleen focus-forming virus
J. Gen. Virol. 74, 699 (1993); https://doi.org/10.1099/0022-1317-74-4-699
/content/journal/jgv/10.1099/0022-1317-74-4-699
/content/journal/jgv/10.1099/0022-1317-74-4-699
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