• 1 October 1974
    • journal article
    • Vol. 27 (4), 589-99
Abstract
IgG2 from immune guinea-pig sera collected 1-2 weeks after secondary BGG challenge showed considerably enhanced cytophilic activity; the preparations contained aggregates (±10 per cent of the total immunoglobulin) shown by antigen exchange to be immune complexes with a probable composition Ag (fragments) Ab5. After removal of aggregates the cytophilic activity of immune 7S IgG2 approximated that of IgG2 from unimmunized animals.