Proteins do play a role in the regulation of eukaryotic gene expression, yet a hidden, parallel regulatory system consisting of RNA that acts directly on DNA, RNAs and proteins is also at work.

• 蛋白质的确参与了真核生物基因表现的调控，然而另外还有一个平行而隐藏的系统，是由RNA构成，直接作用于DNA、RNA和蛋白质。