4714
Expression of constitutively active Raf-1 or MEK1 in Jurkat T cells enhanced the stimulation of IL-2 promoter -driven transcription stimulated by a calcium ionophore and PMA , and together with a calcium ionophore the expression of each protein was sufficient to stimulate NF-AT activity .
 IL-2 promoter, T cells, NF-AT, MEK1, Jurkat T cells, IL-2, Raf-1
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 IL-2 promoter, T cells, NF-AT, MEK1, Jurkat T cells, IL-2, Raf-1