the human interleukin-2 receptor alpha ( il2r alpha ) gene is transcriptionally activated by both phorbol esters and the htlv-i trans-activator ( tax ) protein through a mechanism that involves the interaction of inducible dna binding proteins with a kappa b-like enhancer element ( -267 to -256 ) .
C0040627
trans-activator
C0012940
dna binding