RT Journal Article SR Electronic T1 Anti-Receptor Antibody JF The Journal of Immunology JO J. Immunol. FD American Association of Immunologists SP 722 OP 727 VO 114 IS 2 Part 2 A1 Strayer, David S. A1 Vitetta, Ellen S. A1 Köhler, Heinz YR 1975 UL http://www.jimmunol.org/content/114/2_Part_2/722.abstract AB We have demonstrated a phosphorylcholine-binding protein in lysates from radioiodinated splenocytes of immunized mice. Immunoprecipitation with anti-receptor antibody of lysates from splenocytes obtained from animals undergoing a primary response or from mice immunized 4 to 6 months earlier with antigen demonstrated that this protein contained H and L chains. Therefore, we have isolated an antigen-specific receptor from the surface of spleen cells from both immunized and “memory” animals. This receptor Ig comprises approximately 10% of total cell surface Ig.