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:  To study the mechanisms and the signaling pathways involved , IGF - 1R promoter reporter constructs were transiently transfected in CHO - AT1 cells that overexpress angiotensin AT1 receptors .

A: angiotensin AT1 receptors
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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 .

A: prenyl pyrophosphate Ags
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Q:  During hexamethylene bisactamide ( HMBA ) - induced differentiation of murine erythroleukemia ( MEL ) cells erythroid genes are transcriptionally activated while c - myb and several other nuclear proto - oncogenes are down - regulated .

A:
c - myb
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