11695
We found, however, that PI 3-kinase profoundly influenced the transactivation capacity of ' nuclear factor of activated T cells ' ( NF-AT ) elicited by the TCR : expression of an activated form of PI 3-kinase inhibited TCR -mediated NF-AT responses , whereas expression of a dominant negative mutant of PI 3-kinase potently enhanced TCR -controlled NF-AT induction .
 TCR, NF-AT, NF-AT, NF-AT, TCR, PI 3-kinase, PI 3-kinase, nuclear factor of activated T cells, TCR, PI 3-kinase
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:
 TCR, NF-AT, NF-AT, NF-AT, TCR, PI 3-kinase, PI 3-kinase, nuclear factor of activated T cells, TCR, PI 3-kinase