他们发现p53基因不仅产生大家熟知的p53蛋白质，同时还产生一种p53蛋白质变换“控制开关”的变种——对碘氧基苯甲醚。
They found that the p53 gene makes not only the well-established p53 protein, but also an alternative "control switch" variation of the p53 protein - known as an isoform.
每个相邻基因之间是不能编码蛋白质的dna；相反，它起着基因启动-关闭开关的功能。
Contiguous to each gene is DNA that doesn't code for protein; instead, it functions as the gene's on-off switch.
有一种蛋白质对瓢虫的这两种颜色有影响，并且通过基因开关从一种颜色转换到另一种颜色非常容易。
One protein is responsible for the difference between the two colors, and the genetic switch from one to the other is very simple.
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