ALLELE-SPECIFIC MONOCLONAL-ANTIBODIES AGAINST GLUTATHIONE-S-TRANSFERASE MU1-1

IgG(1) class mouse monoclonal antibodies (MAbs) were produced against human glutathione S-transferase Mu1-1 (GSTMu1-1). Eight MAbs of 16 are able to recognize only the native form of the enzyme; 4 MAbs bind to native and denaturated enzyme, and the remaining 4 can bind only to pa rtially denatured antigen in direct ELISA or Western blot. The antibod ies recognizing the native form of the enzyme bind to six different ep itopes. Three overlapping epitopes are responsible for specific bindin g of MAbs to different allelic variants of GSTMu1-1. Three allele-spec ific antibodies, 2E1, 11F12, and 7D11, bind to GSTM1a monomer and the other two, 1H8 and 3H10, recognize GSTM1b monomer.