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.

 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 .
universal activation motifs

 Despite the importance of NF - kappaB to B cell function , little is known about the signaling pathways leading to NF - kappaB activation .
NF - kappaB

 In contrast to MAC , MO - derived dendritic cells showed an extremely low expression of CRABP II .

CRABP II