13469
To examine the structural basis for the pronounced substrate specificity of HI - 6 , we determined the binary crystal structures of Mus musculus AChE ( mAChE ) conjugated by cyclosarin and Russian VX and found a conformational mobility of the side chains of Phe338 and His447 .
 Chemical: HI - 6; Chemical: cyclosarin; Chemical: Russian VX; Chemical: Phe338; Chemical: His447
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: HI - 6; Chemical: cyclosarin; Chemical: Russian VX; Chemical: Phe338; Chemical: His447