Antigenic properties and molecular weights of murine leukemia virus-binding proteins
Baird, S.M.
Journal of Immunology 122(4): 1389-1396
1979
ISSN/ISBN: 0022-1767 PMID: 221574 Document Number: 152580
A murine T lymphoma cell line, WEHI-22, has been studied for the presence of murine leukemia virus-binding proteins and for the presence of cell surface molecules that share antigens with mouse immunoglobulins. With surface radioiodination, detergent disruption, and immunoprecipitation, a 60 to 70,000-dalton molecule has been described that is recognized by chicken anti-mouse immunoglobulin serum. In competition experiments this molecule cross-reacts with highly purified mouse IgM myeloma proteins. A cell surface molecule of similar size can be shown to bind to mouse leukemia viruses. Pre-precipitation of the WEHI-22 cell surface material with chicken anti-mouse immunoglobulin removes the material binding to leukemia viruses.