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Purified MAR-BP1 migrates as a 33-kDa protein , and it can be found in nuclear matrix preparations from a number of different types of lymphoid cell lines .
 cell line: lymphoid cell lines; protein: 33-kDa protein; protein: MAR-BP1
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:
 cell line: lymphoid cell lines; protein: 33-kDa protein; protein: MAR-BP1