605
Interestingly, alteration of either the microB or E3 site in a 70-base-pair fragment of the IgH enhancer that lacks the binding site for OCTA abolished enhancer activity in lymphoid cells completely.
 cell type: lymphoid cells; DNA: E3 site; DNA: IgH enhancer; DNA: 70-base-pair fragment; DNA: microB
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 type: lymphoid cells; DNA: E3 site; DNA: IgH enhancer; DNA: 70-base-pair fragment; DNA: microB