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:  Stimulation of T lymphocytes results in a rapid increase in intracellular calcium concentration ( [ Ca2 + ] i ) that parallels the activation of Ca2 + - calmodulin - dependent protein kinase IV ( CaMKIV ) , a nuclear enzyme that can phosphorylate and activate the cyclic adenosine monophosphate ( cAMP ) response element - binding protein ( CREB ) .

Output: nuclear enzyme


Input: Consider Input:  Thus , the behavior of ZEBRA in human B cells and S . cerevisiae suggests that the protein contains universal activation motifs that interact with conserved components of the transcription machinery .

Output: universal activation motifs


Input: Consider Input:  Expression of SART3 antigen and induction of CTLs by SART3 - derived peptides in breast cancer patients .


Output: SART3 antigen