Role of carbohydrate in biological functions of Friend murine leukemia virus gp71.

Journal Article (Journal Article)

Purified gp71 of Friend murine leukemia virus (FLV) can interfere with virus infection, absorb neutralizing antibody, and in the presence of group-specific anti-gp71 antibody, hemagglutinate sheep erythrocytes. Interference by FLV gp71 with several murine leukemia viruses (MuLV) was tested in the XC and S + L- assay systems. Treatment of gp71 with trypsin or Pronase eliminated its interfering capacity. However, treatment with neuraminidase or a mixture of glycosidase enzymes, which left the major serological properties of gp71 intact, did not reduce the interference potential of gp71 for FLV or AKR MuLV. The capacity of gp71 to absorb type- or group-specific virus-neutralizing antibodies was similarly affected by the various enzyme treatments. In contrast, indirect hemagglutination by gp71 was abolished not only by proteases but also by treatment with glycosidase enzymes, although neuraminidase had no effect. Preliminary data indicate that infectivity of FLV or xenotropic MuLV was not affected by short treatment with glycosidase enzymes.

Full Text

Duke Authors

Cited Authors

  • Schäfer, W; Fischinger, PJ; Collins, JJ; Bolognesi, DP

Published Date

  • January 1, 1977

Published In

Volume / Issue

  • 21 / 1

Start / End Page

  • 35 - 40

PubMed ID

  • 833928

Pubmed Central ID

  • PMC353788

International Standard Serial Number (ISSN)

  • 0022-538X

Digital Object Identifier (DOI)

  • 10.1128/JVI.21.1.35-40.1977


  • eng

Conference Location

  • United States