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.
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Question:  The trans - activator protein Tax of human T - cell leukemia virus type I ( HTLV - I ) plays an important role in the development of adult T - cell leukemia through , at least in part , its ability to stimulate cell growth .

Answer: trans - activator


Question:  Th1 response , which is characterized by IFN - gamma release , is thought to be involved in the host defense against dermatophytes and to reflect cutaneous reaction in dermatophytosis .

Answer: IFN - gamma


Question:  OBJECTIVE : Tumor necrosis factor - alpha ( TNF - alpha ) induces a variety of cellular responses , some of them being at least seemingly contradictory .

Answer:
TNF - alpha