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:  We show that dispersion of PML bodies by Z requires a portion of the transcriptional activation domain of Z but not the DNA - binding function .

Output: transcriptional activation domain


Input: Consider Input:  Corresponding enzymatic activity was detectable only for 17 - hydroxysteroid dehydrogenase and 5alpha - reductase , respectively producing testosterone and 5alpha - dihydrotestosterone .

Output: 5alpha - reductase


Input: Consider Input:  Furthermore , addition of sodium butyrate or 1 alpha , 25 - dihydroxyvitamin D3 to HL - 60 cells induced the expression of c - fos , c - jun , jun B and jun D proto - oncogenes .


Output: c - fos