956
However, analysis of sucrose gradient fractions in the gel retardation assay provided evidence that the LMP promoter -binding proteins form a complex of higher M(r) in EBNA-2 -positive cell extracts .
 DNA: LMP promoter; cell type: EBNA-2 -positive cell; protein: LMP promoter -binding proteins; protein: EBNA-2
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: LMP promoter, EBNA-2 -positive cell, LMP promoter -binding proteins, EBNA-2 
Answer:
 DNA: LMP promoter; cell type: EBNA-2 -positive cell; protein: LMP promoter -binding proteins; protein: EBNA-2