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Here we show, using nuclear extracts , recombinant protein , and a specific antiserum against AML-1 proteins in DNA-binding assays , that one member of this family, AML-1B , binds specifically to OSE2 and is immunologically related to OSF2 , the factor present in osteoblast nuclear extracts that binds to OSE2 .
 protein: AML-1B; DNA: OSE2; DNA: OSE2; protein: OSF2; protein: AML-1 proteins; protein: recombinant protein
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: AML-1B; DNA: OSE2; DNA: OSE2; protein: OSF2; protein: AML-1 proteins; protein: recombinant protein