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.

 Human peripheral blood T cells , stimulated with PMA for 48 h ( PMA blasts ) , were incubated with IL - 2 in the presence of incremental dosages of dexamethasone ( Dex ; 10 ( - 5 ) - 10 ( - 9 ) M ) .
IL - 2

 BACKGROUND : Antigen - receptor interactions on lymphocytes result in local clustering of actin , receptors and signaling molecules into an asymmetric membrane structure termed a cap .
signaling molecules

 Proteolysis of NF - kappaB inhibitors was apparently due to transient activation of IkappaB kinase ( IKK ) beta that reached maximum activity at 1 hour after plasmin stimulation .

NF - kappaB

