Dual binding specificities in MOPC 384 and 870 murine myeloma immunoglobulins

Homogeneous murine myeloma immunoglobulins (IgA, kappa), M 384, and M 870, bind methyl alpha-D-galactopyranoside and phosphorylcholine at different subsites. Heterologous recombinant immunoglobulins of these two immunoglobulins with M 603 (a homogeneous IgA, kappa with known phosphorylcholine specificity) also bind phosphorylcholine.