title: Molecular heterogeneity of D-end products detected by anti-H-2.28 sera. III. Reactivity of certain anti-H-2.28 alloantisera with Qa-2 antigen.
abstract: In capping experiments with peripheral T lymphocytes, two anti-H-2.28 sera (AKR anti-AKR.L, anti-Kb, and C3H anti-C3H.B10, k anti-b) that do not contain any Qa-2-specific antibodies are able to redistribute not only the H-2.28-positive H-2 molecules, but also Qa-2 molecules. This is due to the capacity of these sera to react with Qa-2 molecules because on cells where all known molecules of the H-2d haplotype were capped (K1d, K2d, Dd, Md, Ld, L2d), both antisera still reacted when the cells came from a Qa-2 positive Dd strain (B10.A) but not when the cells were of Qa-2 negative strain (BALB/cByA). The reaction with Ia and non-H-2 antigens was excluded in these experiments. These data show that Qa-2 and H-2 antigens share some specificities of the H-2.28 family. Other anti-private and anti-public anti-H-2 sera failed to react with the Qa-2 molecules.
mesh_terms: D000818:Animals; D000954:Antigens, Surface / Q000235:genetics / Q000276:immunology*; D000939:Epitopes; D006183:H-2 Antigens / Q000235:genetics / Q000276:immunology*; D015395:Histocompatibility Antigens Class I; D007152:Immunologic Capping; D007518:Isoantibodies; D051379:Mice; D008815:Mice, Inbred Strains; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D000954:Antigens, Surface; D000939:Epitopes; D006183:H-2 Antigens; D015395:Histocompatibility Antigens Class I; D007518:Isoantibodies; C032907:Q surface antigens