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.

[Q]:  NF - kappaB - like element 2 elevated promoter activity when combined with NF - kappaB - like element 1 , indicating cooperative function of the elements for maximum promoter function .
[A]: NF - kappaB


[Q]:  Monocyte migration in response to MCP - 1 was also diminished under hypoxic conditions .
[A]: MCP - 1


[Q]:  Both CD4 + and CD8 + T cells that produce IL - 2 in response to Ag recognition have been isolated .
[A]:
IL - 2