13852
Electron microscopy of myosin - 18A - S1 showed that the lever is strongly angled with respect to the long axis of the motor domain , suggesting a pre - power stroke conformation regardless of the presence of ATP .
 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