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.

Example Input: This ligand - independent pathway can function through another androgen - regulated promoter as shown by the use of the mouse mammary tumor virus MMTV - CAT reporter .
Example Output: CAT reporter

Example Input: We have analyzed the role of the HU protein in invertasome assembly when the enhancer is located at variable positions close to one of the recombination sites .
Example Output: HU protein

Example Input: In addition to TAK1 , TGF - beta also stimulated JNK activity .
Example Output:
TGF - beta