So, for example, if you were interested in some protein involved in cancer, you could tag it with GFP.

例如，如果你对和癌症有关的,蛋白质感兴趣，你可以用GFP标记它。

麻省理工公开课 - 化学原理课程节选

All you have to do is mutate the DNA, which is very straightforward to do in molecular biology, and now you can tag absolutely any protein that you're interested in.

你所需要做的就是使DNA变异，这在分子生物学力是很容易做到的，你可以用它标记,任何你感兴趣的蛋白质。

麻省理工公开课 - 化学原理课程节选