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:  Together , these results suggest that activated human T cells , whether lupus - derived or normal - derived , contain biologically active ERalpha proteins .

Output: ERalpha proteins


Input: Consider Input:  Intense interest is focused on PPAR - gamma and its ligands owing to its putative role in adipocyte differentiation .

Output: PPAR - gamma


Input: Consider Input:  Functional characterization of the two alternative promoters of human p45 NF - E2 gene .


Output: alternative promoters