we have observed that expression of p epsilon glcat and p beta glcat ( the epsilon-globin or beta-globin promoter linked to the cat gene ) was significantly stimulated when cotransfected with a cloned t antigen plasmid into cv-1 cells , indicating that trans-activation of the globin promoters was mediated by sv40 t antigen .
C0014642
epsilon-globin
C0005221
beta-globin