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:  One of the challenges in defining the molecular events regulated by Nef has been obtaining good expression of Nef protein in T cells .
Example Output: Nef protein

Example Input:  Fatty acids are ligands for peroxisome proliferator - activated receptor - gamma ( PPARgamma ) , and the upregulation of adipophilin mRNA by PPARgamma agonists like 15d - PGJ ( 2 ) and ciglitazone indicates that PPARgamma may mediate the induction of adipophilin expression in human blood monocytes .
Example Output: adipophilin mRNA

Example Input:  Cn A cleavage was caspase mediated , since it was inhibitable by pan - caspase inhibitor Cbz - Asp - CH ( 2 ) OC ( O ) - 2 , 6 - dichlorobenzene ( Z - D - DCB ) .
Example Output:
Cn A