12076
To investigate in vivo regulatory mechanisms that control the population of type 2 T cells and disease susceptibility, we have created lines of transgenic mice in which expression of a chimeric cytokine receptor (the mouse interleukin 2 receptor beta chain [ IL-2Rbeta ] extracellular domain fused to the cytoplasmic tail of IL-4Ralpha ) is targeted to the T lymphoid lineage using the proximal lck promoter .
 ( protein: interleukin 2 receptor beta chain, None) , ( protein: chimeric cytokine receptor, None) , ( protein: IL-4Ralpha, None) , ( protein: cytoplasmic tail, None) , ( cell type: type 2 T cells, None) , ( cell type: T lymphoid lineage, None) , ( protein: mouse interleukin 2 receptor beta chain, None) , ( protein: mouse interleukin 2 receptor beta chain [ IL-2Rbeta ] extracellular domain, None) , ( DNA: proximal lck promoter, None) , ( protein: IL-2Rbeta, 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: interleukin 2 receptor beta chain, None) , ( protein: chimeric cytokine receptor, None) , ( protein: IL-4Ralpha, None) , ( protein: cytoplasmic tail, None) , ( cell type: type 2 T cells, None) , ( cell type: T lymphoid lineage, None) , ( protein: mouse interleukin 2 receptor beta chain, None) , ( protein: mouse interleukin 2 receptor beta chain [ IL-2Rbeta ] extracellular domain, None) , ( DNA: proximal lck promoter, None) , ( protein: IL-2Rbeta, None) 