1777
The Id ( inhibitor of DNA binding and differentiation ) HLH proteins , in a dominantly negative fashion, regulate transcriptional activities of basic HLH proteins .
 protein: HLH proteins; protein: basic HLH proteins; protein: Id
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: HLH proteins; protein: basic HLH proteins; protein: Id