15006
Hemin induction of K562 cells does not facilitate the binding of NF-E2 to its recognition site .
 protein: NF-E2; DNA: recognition site; cell line: K562 cells
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: NF-E2, recognition site, K562 cells 
Answer:
 protein: NF-E2; DNA: recognition site; cell line: K562 cells