anti-gp90 activity was detected at dilutions with an immunoglobulin g content of 0.02 to 11 micrograms , whereas antibody to p28 , when detectable on western blots , was present in samples with an immunoglobulin g content of 0.1 to 2 mg , representing 100- to 1,000-fold-greater titers of antibody to the surface glycoprotein .
C0020852
immunoglobulin g
C0003241
antibody