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.
--------
Question:  IL - 4 plays a critical role in the differentiation of T CR - stimulated naive CD4 T cells to the Th2 phenotype .

Answer: IL - 4


Question:  DNA - binding activity of nuclear factor - kappaB was determined by electrophoretic mobility shift assay .

Answer: nuclear factor


Question:  The 70 - kDa protein corresponds to the NF - kappa B RelA ( p65 ) subunit , which is activated in response to an acute paramyxovirus infection or a chronic HIV - 1 infection .

Answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
HIV - 1


