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]:  MATERIALS AND METHODS : We screened a panel of acute myeloid leukemia - derived cell lines for TNF - alpha - responsiveness .
[A]: TNF - alpha


[Q]:  Thus , Th2 - specific GATA - 3 expression and p38 mitogen - activated protein kinase activation together provide a molecular basis for the differential effects of cAMP in the two T helper cell subsets .
[A]: GATA - 3


[Q]:  The unagglutinated thymocytes ( peanut negative ) contained about 2 times more receptor sites per cell than agglutinated ( peanut positive ) ones ( 7650 + / - 1550 S . D . verus 3195 + / - 896 S . D . ) .
[A]:
receptor sites