5921
The average correlation coefficients range from 0 . 74 for ubiquitin to 0 . 93 for Pyrococcus furiosus rubredoxin , reflecting the larger range of experimental exchange rates exhibited by the latter protein .
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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