tokens: Mutations within the C terminus of c-fos at serine residues that are phosphorylation targets for growth factors and MAP kinase completely abrogate transactivation and block potentiation by MAP kinase .
folded_tokens: mutation within the c terminus of c-fo at serine residue that be phosphorylation target for growth factor and map kinase completely abrogate transactivation and block potentiation by map kinase .