6176
Overall, these results indicate that the integrity of domain E is necessary and sufficient to bind steroid ligands, agonists or antagonists, with characteristics similar to the entire native MR .
 protein: MR; protein: domain E
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: MR, domain E 
Answer:
 protein: MR; protein: domain E