Whereas one could think that there is a 1:1 enhancer-promoter ratio, studies of the human genome predict that an active promoter interacts with 4 to 5 enhancers.
Budući da bi se moglo pomisliti da postoji promoter jačanja promotera 1:1, studije humanog genoma predviđaju da aktivni promoter interaguje sa 4 do 5 poboljšivača.