title: An antigen-specific I region gene product that augments the antibody response.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D002478:Cells, Cultured; D004140:Dinitrophenols; D000939:Epitopes; D006241:Haptens; D006433:Hemocyanins; D007048:I Blood-Group System; D007125:Immunogenetics; D008214:Lymphocytes / Q000276:immunology*; D051379:Mice; D014020:Tissue Extracts
chemical_list: D004140:Dinitrophenols; D000939:Epitopes; D006241:Haptens; D007048:I Blood-Group System; D014020:Tissue Extracts; D006433:Hemocyanins