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Table 3 Substrate specificity of alliinase from E. adhaerens FERM P-19486

From: Alliinase from Ensifer adhaerens and Its Use for Generation of Fungicidal Activity

Substrate Kinetic constants
  V max a
(units/mg)
K m
(mM)
V max /K m
(±)-Alliin 90.0 2.3 39.1
(+)-Alliin 18.5 5.7 3.2
S-Allyl-L-cysteine 66.1 10.6 6.2
S-Methyl-L-cysteine 15.3 -b -
(±)-S-Methyl-L-cysteine sulfoxide 53.6 - -
S-Ethyl-L-cysteine 29.7 - -
L-Cysteine 1.6 - -
  1. a The V max value was obtained by the rate of pyruvic acid production in the standard reaction mixture containing each substrate at 40 mM.
  2. b Not tested.