So now, for example, there are a whole range, just a whole rainbow of fluorescent proteins that can be used.

现在，人们可以用的荧光范围，达到整个彩虹色谱。

麻省理工公开课 - 化学原理课程节选

You could watch where it localizes in the cell, there are fluorescent assays you could use to determine what other proteins it interacts with.

你可以看到它在细胞的什么地方，你可以用荧光化验的办法确定,它和其它什么蛋白质相作用。

麻省理工公开课 - 化学原理课程节选