cell surface t antigen , detected by a radioimmune assay that uses 125i-labeled staphylococcus aureus protein a and antibodies against either authentic t antigen or d2 hybrid t antigen , was found in simian virus 40-transformed and -infected cells and in cells infected with an adenovirus-simian virus 40 hybrid , ad2+d2 .
C0003343
t antigen
C0042776
virus