In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

[EX Q]: We report the cloning of the ade1 gene on a 4 . 4 kb Sau3A insert in the yeast shuttle vector pWH5 .
[EX A]: ade1 gene

[EX Q]: The MEF - 2 proteins are a family of transcriptional activators that have been detected in a wide variety of cell types .
[EX A]: MEF - 2

[EX Q]: Although several other signal transduction molecules also contain tandemly occurring SH3 and SH2 domains , the function of these closely spaced domains is not well understood .
[EX A]:
SH2 domains