3649
The simplest model to explain these results is that anergy is mediated by a complex of multiple transcription factors that exert a cis-acting dominant negative regulatory effect on the trans-activation of the IL-2 gene .
 protein: transcription factors; DNA: IL-2 gene; protein: IL-2
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: transcription factors, IL-2 gene, IL-2 
Answer:
 protein: transcription factors; DNA: IL-2 gene; protein: IL-2