TASK DEFINITION: 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.
PROBLEM:  Two sequences in the Tip protein were previously shown to be involved in binding to Lck .

SOLUTION: Tip protein

PROBLEM:  This study established a UUO model in angiotensin type 1a receptor ( AT1a ) deficient ( mutant ) mice to elucidate the role of angiotensin II through AT1a on the fibrosis of the obstructed kidney ( OBK ) .

SOLUTION: angiotensin II

PROBLEM:  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 .

SOLUTION:
caspase - 3