Table 4.

Steady-state kinetic parameters for schistosomal SULTs with oxamniquine (OXA) as substrate

The following conditions were used: 0.05 μm inositol monophosphatase 3, 50 mm MOPS, pH 7.0, 15 mm MgCl₂ at 37 °C.

Enzyme	kcat/Km
	(S)-OXA	(R)-OXA
	μm−1 min−1
SmSULT	1.7 ± 0.4	1.3 ± 0.3
ShSULT	0.89 ± 0.22	0.067 ± 0.008
SjSULT	0.0071 ± 0.0016	0.021 ± 0.004