Requires Mg2+ for maximal activity . This is the final step in the sucrose-biosynthesis pathway. The enzyme is highly specific for sucrose 6-phosphate, with fructose 6-phosphate unable to act as a substrate . Belongs in the haloacid dehydrogenase (HAD) superfamily. The F of sucrose 6F-phosphate is used to indicate that the fructose residue of sucrose carries the substituent.
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