this activation was specific to hybrid genes containing de regulatory regions since no significant increases in expression were observed in cotransfection experiments with the cat gene without any promoter region or under the control of a number of other regulatory regions , including an hsv-1 ie regulatory region , the complete or enhancerless early regulatory region of simian virus 40 , and an inducible cellular promoter/regulatory region .
C0034987
regulatory region
C0007634
cellular