21999
Previous studies have revealed that the ATP binding step is crucial both for the power stroke to produce motility and for the inter - domain regulation of ATPase activity to guarantee the processive movement of dimeric KIFs .
 Chemical: ATP
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