12352
The catalytic efficiency , regioselectivity , and chemoselectivity of FosA are rationalized in terms of the influence of the active - site protein environment and the different stabilization of the distorted substrates in the relevant transition states .
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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:
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