607
Utilizing transient transfection assays in the fetal erythroid cell line , K562 , we have shown that the core enhancer of hypersensitivity site 2 can preferentially interact with the proximal gamma-promoter in the absence of the SSE , completely silencing a linked beta-promoter .
 DNA: SSE; DNA: core enhancer; DNA: hypersensitivity site 2; cell line: fetal erythroid cell line; cell line: K562; DNA: proximal gamma-promoter; DNA: linked beta-promoter
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: SSE, core enhancer, hypersensitivity site 2, fetal erythroid cell line, K562, proximal gamma-promoter, linked beta-promoter 
Answer:
 DNA: SSE; DNA: core enhancer; DNA: hypersensitivity site 2; cell line: fetal erythroid cell line; cell line: K562; DNA: proximal gamma-promoter; DNA: linked beta-promoter