1593
This phenomenon is due to mutually exclusive binding of NF-ATp and NF-kappa B to the P sequence , an element located 69 bp upstream of the IL4 transcription initiation site .
 protein: NF-kappa B; protein: NF-ATp; DNA: P sequence; DNA: 69 bp upstream; DNA: IL4 transcription initiation site
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; protein: NF-ATp; DNA: P sequence; DNA: 69 bp upstream; DNA: IL4 transcription initiation site