9071
The A110V , S172L , and D253 variants showed reduced basal activity ; the S172L mutant displayed a decrease in potency to the endogenous ligand L - lactate .
 Chemical: L - lactate
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: L - lactate