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.

[EX Q]:  Binding of either factor to the octamer element occurred independently .
[EX A]: octamer element

[EX Q]:  Here , we investigated how CD28 costimulation functions to allow TCR - triggered resting T cells to acquire IL - 12 responsiveness .
[EX A]: IL - 12

[EX Q]:  In epithelial cells , defensin genes are found as both constitutively expressed and inducible .
[EX A]:
defensin genes