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We demonstrate that CD4 triggering delivers signals capable of activating the NF-AT transcription factor which is required for interleukin-2 gene expression .
 protein: interleukin-2; protein: NF-AT transcription factor; protein: CD4
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: interleukin-2, NF-AT transcription factor, CD4 
Answer:
 protein: interleukin-2; protein: NF-AT transcription factor; protein: CD4