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]:  Presently , we made chain pair switch , chimeric , and site mutant gamma delta TCRs and transfected them into TCR - mutant Jurkat T cells to examine the effects of changing the TCR gamma junctional region sequences on reactivity to prenyl pyrophosphate Ags .
[EX A]: prenyl pyrophosphate Ags

[EX Q]:  The yjr041c delta haploid cells gave rise to microcolonies comprising about 20 to 50 cells .
[EX A]: yjr041c delta

[EX Q]:  Nuclear transcription assays confirmed that cys - 3 + was under sulfur - regulated transcriptional control and that cys - 3 + transcription was constitutive in sulfur controller ( scon ) - negative regulator mutants .
[EX A]:
sulfur controller