1038
Within this region, we have identified several sequences that are implicated in DNA protein interactions as shown in DNAse I footprints and gel mobility shift assays .
 protein: DNAse I
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: DNAse I