5021
The gammac chain is a subunit of multiple cytokine receptors ( interleukin (IL)-2 , IL-4 , IL-7 , IL-9 , and IL-15 ), the expression of which is restricted to hematopoietic lineages .
 ( protein: gammac chain, None) , ( protein: interleukin (IL)-2, None) , ( protein: cytokine receptors, None) , ( protein: IL-9, None) , ( protein: IL-7, None) , ( cell type: hematopoietic lineages, None) , ( protein: IL-4, None) , ( protein: IL-15, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: gammac chain, None) , ( protein: interleukin (IL)-2, None) , ( protein: cytokine receptors, None) , ( protein: IL-9, None) , ( protein: IL-7, None) , ( cell type: hematopoietic lineages, None) , ( protein: IL-4, None) , ( protein: IL-15, None) 