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.

Input: Consider Input:  Nevertheless , inhibitors of these pathways clearly reduced the TNF - alpha - induced cell growth , indicating that TNF - alpha - proliferative cells produced a growth factor that induced proliferation upon stimulation of the above pathways .

Output: TNF - alpha


Input: Consider Input:  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 .

Output: trans - activator


Input: Consider Input:  At variance with endotoxic lipopolysaccharide , plasmin elicited the rapid degradation of another cytoplasmic NF - kappaB inhibitor , p105 .


Output: NF - kappaB