1455
Thus, OBF-1 has all the properties expected for a B cell-specific transcriptional coactivator protein .
 protein: OBF-1; protein: B cell-specific transcriptional coactivator protein
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: OBF-1, B cell-specific transcriptional coactivator protein 
Answer:
 protein: OBF-1; protein: B cell-specific transcriptional coactivator protein