two ( 2e9 and 4g5 ) of the three monoclonal antibodies characterized reacted by immunoblotting with a 67,000-dalton pi-3 protein , and one antibody ( 4e5 ) reacted with two viral proteins in the range of 29,000 to 31,000 daltons .
C0003250
monoclonal antibodies
C0003241
antibody