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It is located in the nucleus in mature B cells , but is present in other cell types as an inactive cytoplasmic complex .
 protein: inactive cytoplasmic complex; cell type: mature B cells
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: inactive cytoplasmic complex; cell type: mature B cells