1988
The enzyme displays optimal activity at about 0 . 5 mM pantoate ( k ( cat ) 0 . 63 s ( - 1 ) ) and at pH 7 . 8 .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None