1586
These studies have been extended to show that (i) a mutant EBV strain lacking the gene encoding EBNA 2 fails to switch from Wp to Cp usage in primary B lymphocytes , although the virus contains a functional Cp ; (ii) a region from -429 to -245 base pairs upstream of Cp is essential for Cp activity in B lymphocytes , but only in the context of upstream and downstream sequences ; (iii) this region contains an EBNA 2 -dependent enhancer ; and (iv) DNase I protection employing nuclear extracts from B and T lymphocytes revealed a B-cell-specific footprint in the region of the EBNA 2 -dependent enhancer .
 DNA: Cp; DNA: Cp; DNA: Cp; DNA: Cp; protein: EBNA 2; DNA: -429 to -245 base pairs; protein: EBNA 2; protein: DNase I; DNA: EBNA 2 -dependent enhancer; DNA: B-cell-specific footprint; DNA: downstream sequences; DNA: EBNA 2 -dependent enhancer; DNA: upstream; cell type: B lymphocytes; cell type: primary B lymphocytes; protein: EBNA 2; DNA: Wp; DNA: upstream and downstream sequences
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:
 DNA: Cp; DNA: Cp; DNA: Cp; DNA: Cp; protein: EBNA 2; DNA: -429 to -245 base pairs; protein: EBNA 2; protein: DNase I; DNA: EBNA 2 -dependent enhancer; DNA: B-cell-specific footprint; DNA: downstream sequences; DNA: EBNA 2 -dependent enhancer; DNA: upstream; cell type: B lymphocytes; cell type: primary B lymphocytes; protein: EBNA 2; DNA: Wp; DNA: upstream and downstream sequences