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:  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


Question:  Siglec - 9 is predicted to contain three extracellular immunoglobulin - like domains that comprise an N - terminal V - set domain and two C2 - set domains , a transmembrane region and a cytoplasmic tail containing two putative tyrosine - based signaling motifs .

Answer: Siglec - 9


Question:  The exon sequences determined from genomic DNA sequencing showed some differences when compared to the published rat GLUT2 cDNA .

Answer:
rat GLUT2 cDNA