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Abnormal regulation of the IL-2 promoter in lpr CD4-CD8- T lymphocytes results in constitutive expression of a novel nuclear factor of activated T cells -binding factor .
 ( cell type: T cells, None) , ( protein: novel nuclear factor of activated T cells -binding factor, None) , ( protein: nuclear factor of activated T cells, None) , ( protein: IL-2, None) , ( cell line: CD4-CD8- T lymphocytes, None) , ( DNA: IL-2 promoter, 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:
 ( cell type: T cells, None) , ( protein: novel nuclear factor of activated T cells -binding factor, None) , ( protein: nuclear factor of activated T cells, None) , ( protein: IL-2, None) , ( cell line: CD4-CD8- T lymphocytes, None) , ( DNA: IL-2 promoter, None) 