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]:  The peptide also inhibited redistribution of 5 - lipoxygenase from the cytosol to the nuclear membrane of HL - 60 cells stimulated by A23187 .
[EX A]: 5 - lipoxygenase

[EX Q]:  A significantly higher suppression was achieved after sequential exposure of PBM cells to cortisol and equimolar levels of prostaglandin E2 ( PgE2 ) .
[EX A]: prostaglandin E2

[EX Q]:  T cell stage - specific PcG expression profiles suggest that PcG genes contribute to regulation of T cell differentiation .
[EX A]:
PcG genes