9481
Recently , statistical studies between the HisKA and HATPase - ATP - binding domains of histidine kinases identified amino acid interactions for both the inactive and the active catalytic states of such kinases .
 Chemical: ATP; Chemical: histidine; Chemical: amino acid
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: ATP; Chemical: histidine; Chemical: amino acid