5690
A nucleotide substitution within a recently described OAP40 element located just upstream of an NF-AT site ( P sequence ) appears to be largely responsible for the increased promotor strength of this particular allelic form of the IL-4 promoter .
 ( DNA: IL-4 promoter, None) , ( DNA: NF-AT site, None) , ( DNA: OAP40 element, None) , ( protein: IL-4, None) , ( DNA: P sequence, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( DNA: IL-4 promoter, None) , ( DNA: NF-AT site, None) , ( DNA: OAP40 element, None) , ( protein: IL-4, None) , ( DNA: P sequence, None) 