22003
Through the stabilization of switch II , the local conformational change at the catalytic center is further relayed to the neck - linker element that fully docks to the catalytic core to produce the power stroke .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None