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]: Significant proliferative responses to IRBP were elicited by 48 hours indicating that systemic priming of naive T cells to retinal antigen had occurred .
[EX A]: retinal antigen

[EX Q]: Despite the importance of NF - kappaB to B cell function , little is known about the signaling pathways leading to NF - kappaB activation .
[EX A]: NF - kappaB

[EX Q]: Number of glucocorticoid receptors in lymphocytes and their sensitivity to hormone action .
[EX A]:
glucocorticoid receptors