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.

[EX Q]:  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 .
[EX A]: universal activation motifs

[EX Q]:  BCL - 6 is essential for germinal center formation and thus for affinity maturation of immunoglobulin ( Ig ) genes by somatic mutations .
[EX A]: BCL - 6

[EX Q]:  Identification of a novel lymphoid specific octamer binding protein ( OTF - 2B ) by proteolytic clipping bandshift assay ( PCBA ) .
[EX A]:
OTF - 2B