1473
Costimulation requirement for AP-1 and NF-kappa B transcription factor activation in T cells .
 protein: NF-kappa B; cell type: T cells; protein: AP-1
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: NF-kappa B; cell type: T cells; protein: AP-1