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]:  However , there has been no direct demonstration that activator protein - 1 is involved in CD28 - dependent costimulation of IL - 2 gene transcription in freshly isolated naive and memory human T lymphocytes .
[A]: IL - 2


[Q]:  Activation of FasL occurs via the NFAT - dependent induction of Egr3 , as demonstrated by the ability of exogenously provided NFATp to restore Egr - dependent FasL promoter activity in DKO lymph node cells .
[A]: FasL promoter


[Q]:  Leukemic lymphoblasts contain larger numbers of receptor sites .
[A]:
receptor sites