12861
Surprisingly, different combinations of disabling mutations within the HLF bZIP domain had little effect on the antiapoptotic property of the chimeric protein , so long as the amino-terminal portion of E2A remained intact.
 protein: HLF bZIP domain; protein: E2A; protein: chimeric protein
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: HLF bZIP domain, E2A, chimeric protein 
Answer:
 protein: HLF bZIP domain; protein: E2A; protein: chimeric protein