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The BCL-6 gene encoding a nuclear-located Kruppel-type zinc finger protein is rearranged in about 30% diffuse large B-cell lymphomas and is expressed predominantly in normal germinal center B cells and related lymphomas .
 B-cell lymphomas, BCL-6, germinal center B cells, nuclear-located Kruppel-type zinc finger protein, BCL-6 gene
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 B-cell lymphomas, BCL-6, germinal center B cells, nuclear-located Kruppel-type zinc finger protein, BCL-6 gene