292
The carboxyl - terminal 75 amino acids of the two proteins contain the bHLH motif and differ from each other by only three conservative amino acid changes , while the amino - terminal portions are markedly divergent from each other .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None