17170
Steady - state kinetic assays revealed that CA is a substrate for metallo - beta - lactamases ( M beta Ls ) L1 and CcrA , exhibiting Km and kcat values of 18 mu M and 5s ( - 1 ) and 11 mu M and 17s ( - 1 ) , respectively .
 None
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