3131
However, it has been recently reported that the NH2 regulatory domain is sufficient to mediate CD4 accessory function .
 protein: CD4; protein: regulatory domain; protein: NH2
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: CD4, regulatory domain, NH2 
Answer:
 protein: CD4; protein: regulatory domain; protein: NH2