guinea pig anti-idiotypic antibodies ( anti-id ) of the igg1 class , directed to an a/j antibody to group a streptococcal carbohydrate ( a-cho ) , or directed to a balb/c myeloma protein that binds the same antigen , stimulate b-precursor cells as well as t-helper cells when injected into mice of the appropriate strain .
C0026764
myeloma
C0004561
b