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.

[Q]: Furthermore , Grap is associated with a Ras guanine nucleotide exchange factor mSos1 , primarily through its N - terminal SH3 domain .
[A]: SH3 domain

[Q]: We therefore investigated whether the promoter activity of the mouse TRH gene is directly regulated by RA using a transient transfection assay into CV - 1 cells .
[A]: mouse TRH gene

[Q]: A regulatory element of the empty spiracles homeobox gene is composed of three distinct conserved regions that bind regulatory proteins .
[A]:
empty spiracles