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]:  Using enhancer - reporter constructs , IL - 4 specifically down - regulated the NFIL - 2B element .
[A]: IL - 4


[Q]:  H2O2 was found to stimulate Ins - 1 , 4 , 5 - P3 production in a tyrosine kinase - dependent manner and to induce calcium signals that were greatly augmented by vanadate .
[A]: tyrosine kinase


[Q]:  Molecular analyses indicate that the block in NF - kappaB impairs Iglambda rearrangement at the level of recombinase accessibility .
[A]:
NF - kappaB