Compound as reactive (1)
keto-D-tagatose + ATP → keto-D-tagatose 6-phosphate + H+ + ADP
Compound as product (2)
NAD+ + galactitol → NADH + keto-D-tagatose + H+
NAD+ + D-altritol → NADH + keto-D-tagatose + H+
Reversible reaction (2)
keto-D-tagatose ↔ keto-D-sorbose
keto-D-tagatose + ATP ↔ D-tagatofuranose 6-phosphate + H+ + ADP