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: A novel Cdc42Hs mutant induces cellular transformation .

Answer: Cdc42Hs mutant

Question: Three distinct human HDACs are homologous to RPD3 , a yeast transcriptional regulator .

Answer: human HDACs

Question: To further study the role of tTG in liver disease , we initiated investigations into the effect of a proinflammatory mediator , tumor necrosis factor ( TNF ) - alpha , on tTG activity in cultured liver cells .

Answer:
tumor necrosis factor