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.

Input: Consider Input: Targeting of p300 to the interleukin - 2 promoter via CREB - Rel cross - talk during mitogen and oncogenic molecular signaling in activated T - cells .

Output: interleukin - 2

Input: Consider Input: T cells retained their physical parameters as measured by forward and side light scatter , and functional activity as measured by costimulation of proliferation and IL - 2 production after being scraped off this substrate .

Output: IL - 2

Input: Consider Input: The ATRA metabolites were found to exert their differentiation effects via the RAR alpha nuclear receptors , because the RAR alpha - specific antagonist BMS614 blocked metabolite - induced CD11c expression in NB4 cells .
Output: nuclear receptors