10125
We previously detected a tissue-specific promoter preceding the exon encoding the N terminus of the pp52 leukocyte protein .
 protein: N terminus; protein: pp52 leukocyte protein; DNA: tissue-specific promoter
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: N terminus, pp52 leukocyte protein, tissue-specific promoter 
Answer:
 protein: N terminus; protein: pp52 leukocyte protein; DNA: tissue-specific promoter