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.

 The Tip protein of Herpesvirus saimiri strain 484C binds to and activates the Lck tyrosine protein kinase .
Tip protein

 Reactivity with the tegument protein encoded by UL21 was identified for an additional patient .
tegument protein

 In addition , caspase - 3 , an executioner of apoptosis , was activated and its substrate , poly ( ADP - ribose ) polymerase ( PARP ) , was cleaved during 2 , 2 ' , 4 , 6 , 6 ' - PeCB - induced apoptosis .

caspase - 3

