17408
These K ( i ) values are nearly equal to that of histidine methyl ester ( K ( i ) = 0 . 46 mu M ) , an existing substrate analogue inhibitor .
 Chemical: histidine methyl ester
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: histidine methyl ester