L-fucose isomerase

Requires a divalent metal ion (the enzyme from the bacterium Escherichia coli prefers Mn2+). The enzyme binds the closed form of the sugar and catalyses ring opening to generate a form of open-chain conformation that facilitates the isomerization reaction, which proceeds via an ene-diol mechanism. The enzyme from Escherichia coli can also convert D-arabinose to D-ribulose. The enzyme from the thermophilic bacterium Caldicellulosiruptor saccharolyticus also converts D-altrose to D-psicose and L-galactose to L-tagatose.

• Supplier: Creative Enzymes
• Product #: EXWM-5464
• CAS: 60063-83-4