Table 1.

Substrate specificity of recombinant BmSUH

Substrate	Relative activitya
	%
Sucrose [Glc-α(1↔2)β-Fru]	100 ± 2a
Turanose [Glc-α(1→3)-Fru]	NDb
Isomaltulose [Glc-α(1→6)-Fru]	1.0 ± 0.1
1-Kestose [Glc-α(1↔2)β-Fru-(1←2)β-Fru]	1.6 ± 0.1
Nystose [Glc-α(1↔2)β-Fru-(1←2)β-Fru-(1←2)β-Fru]	0.5 ± 0.1
Trehalose [Glc-α(1↔1)α-Glc]	ND
Kojibiose [Glc-α(1→2)-Glc]	ND
Nigerose [Glc-α(1→3)-Glc]	ND
Maltose [Glc-α(1→4)-Glc]	0.05 ± 0.03
Maltotriose	0.6 ± 0.1
Maltotetraose	0.06 ± 0.02
Maltopentaose	0.06 ± 0.02
Maltohexaose	0.04 ± 0.03
Isomaltose [Glc-α(1→6)-Glc]	ND
Raffinose [Gal-α(1→6)-Glc-α(1↔2)β-Fru]	ND
α-Glucosyl fluoride	69 ± 4
p-Nitrophenyl α-glucopyranoside	ND

^a Hydrolytic activity toward sucrose was taken to be 100% (24.1 ± 0.5 μmol min⁻¹ mg⁻¹).

^b ND, not detected.