tokens: The tumorigenic E1A + cHa-ras cells are characterized by high and constitutive DNA binding activities of AP-1 , in contrast to nontransformed cells and the E1A cells .
folded_tokens: the tumorigenic e1a + cha-ra cell be characterize by high and constitutive dna binding activity of ap-1 , in contrast to nontransformed cell and the e1a cell .