19862
The refolded 6His - TAT - Ainp1 interacts with the helix - loop - helix ( HLH ) domain of ARNT in a similar fashion as the native 6His - Ainp1 .
 Chemical: 6His; Chemical: 6His
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: 6His; Chemical: 6His