3487
This mutant inhibited TCR -induced activation of nuclear factor of activated T cells by interfering with both intracellular calcium increase and Ras -regulated activation of extracellular signal-regulated kinases .
 T cells, nuclear factor of activated T cells, TCR, activated T cells, Ras, extracellular signal-regulated kinases
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:
 T cells, nuclear factor of activated T cells, TCR, activated T cells, Ras, extracellular signal-regulated kinases