5.3.1.25: L-fucose isomerase

This is an abbreviated version!
For detailed information about L-fucose isomerase, go to the full flat file.

Reaction

Synonyms

D-Arabinose (L-Fucose) isomerase, D-Arabinose isomerase, EC 5.3.1.3, FcsI, FucI, Fucose isomerase, Isomerase, L-fucose, L-Fucose isomerase, L-fucose ketol-isomerase

ECTree

     5 Isomerases

         5.3 Intramolecular oxidoreductases

             5.3.1 Interconverting aldoses and ketoses, and related compounds

                5.3.1.25 L-fucose isomerase

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Results	in table
3878	AA Sequence
2	Application
1	CAS Registry Number
6	Cloned(Commentary)
3	Crystallization (Commentary)
1	General Information
1	General Stability
26	Inhibitors
15	kcat/KM [mM/s]
31	KM Value [mM]
11	Metals/Ions
14	Molecular Weight [Da]
17	Natural Substrates/ Products (Substrates)
39	Organism
6	Pathway
18	PDB ID
7	pH Optimum
2	pH Range
27	Protein Variants
9	Purification (Commentary)
2	Reaction
3	Reaction Type
29	Reference
8	Source Tissue
24	Specific Activity [micromol/min/mg]
2	Storage Stability
39	Substrates and Products (Substrate)
11	Subunits
10	Synonyms
1	Systematic Name
2	Temperature Optimum [°C]
1	Temperature Range [°C]
2	Temperature Stability [°C]
16	Turnover Number [1/s]

Systematic Name

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Systematic Name on EC 5.3.1.25 - L-fucose isomerase

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SYSTEMATIC NAME

IUBMB Comments

L-fucose aldose-ketose-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 [3]. The enzyme from Escherichia coli can also convert D-arabinose to D-ribulose [1]. The enzyme from the thermophilic bacterium Caldicellulosiruptor saccharolyticus also converts D-altrose to D-psicose and L-galactose to L-tagatose [4].