13847
Myosin - 18A alpha - S1 and - 18A beta - S1 molecules bound actin weakly with Kd values of 4 . 9 and 54 mu m , respectively .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None