(S)-2-hydroxy-2-methyl-3-oxobutanoate carboxy-lyase [(R)-2-acetoin-forming]
(s)-2-hydroxy-2-methyl-3-oxobutanoate carboxy-lyase [(r)-2-acetoin-forming]
(S)-2-hydroxy-2-methyl-3-oxobutanoate carboxy-lyase [(R)-2-acetoin-forming]
(s)-2-hydroxy-2-methyl-3-oxobutanoate carboxy-lyase [(r)-2-acetoin-forming]