551
However, an excess of rapamycin is needed to revert FK506 -mediated inhibition of IL-2 production , apoptosis , and transcriptional activation of NF-AT , a T-cell-specific transcription factor necessary for IL-2 gene activation .
 protein: IL-2; protein: IL-2; protein: T-cell-specific transcription factor; DNA: IL-2 gene; protein: NF-AT
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: IL-2; protein: IL-2; protein: T-cell-specific transcription factor; DNA: IL-2 gene; protein: NF-AT