Table 1.

Kinetic parameters for MFS.

Enzyme Source	Aerobacter aerogenes[a]	Helix pomatia[b]	Abalone Entrails[b,c]
KM (µM)	598 ± 67	24.8 ± 2.2	1070 ± 420
Vmax (pmoles/sec)	1.25 ± 0.08	6.9 ± 0.2	10.4 ± 3.3
Vmax/KM (nL/sec)	2.10	277	9.74

^[a]Assay was performed in Tris buffer (pH 7.5) at 37 °C.

^[b]Assay was performed in potassium acetate buffer (pH 5.0) at 37 °C.

^[c]Inhibition was observed (K_i = 770 ± 370 µM).