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]: This complex was eliminated by mutation of either half - site , and it was supershifted by antibodies against chicken ovalbumin upstream promoter - transcription factor ( COUP - TF ) .
[EX A]: COUP - TF

[EX Q]: LCCH1 was identical to the Rdl gene , a known GABA receptor subunit gene from D . melanogaster , whereas LCCH2 and LCCH3 were novel D . melanogaster sequences that exhibited structural similarity to other members of the ligand - gated chloride channel gene family .
[EX A]: Rdl gene

[EX Q]: Intrathecal injections of small volumes of the alpha 2 - adrenoceptor agonists , xylazine and clonidine , into the cervical region of the spinal cord of conscious unrestrained sheep produced a dose - dependent analgesia of the forelimbs as measured using a mechanical pressure device .
[EX A]:
alpha 2