845
At least two 21 bp repeats were required for high levels of AP-2 activation and mutagenesis of the AP-2 consensus binding sequences in the 21 bp repeats eliminate this activation.
 DNA: AP-2 consensus binding sequences; protein: AP-2; DNA: 21 bp repeats; DNA: 21 bp repeats; protein: AP-2
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:
 DNA: AP-2 consensus binding sequences; protein: AP-2; DNA: 21 bp repeats; DNA: 21 bp repeats; protein: AP-2