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Information on EC 2.4.1.246 - mannosylfructose-phosphate synthase

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EC Tree
     2 Transferases
         2.4 Glycosyltransferases
             2.4.1 Hexosyltransferases
                2.4.1.246 mannosylfructose-phosphate synthase
IUBMB Comments
This enzyme, from the soil proteobacterium and plant pathogen Agrobacterium tumefaciens strain C58, requires Mg2+ or Mn2+ for activity. GDP-mannose can be replaced by ADP-mannose but with a concomitant decrease in activity. The product of this reaction is dephosphorylated by EC 3.1.3.79 (mannosylfructose-phosphate phosphatase) to form the non-reducing disaccharide mannosylfructose, which is the major endogenous osmolyte produced by several alpha-proteobacteria in response to osmotic stress. The F in the product name is used to indicate that the fructose residue of sucrose carries the substituent.
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The expected taxonomic range for this enzyme is: Agrobacterium tumefaciens
Synonyms
MFPS, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
GDP-mannose + D-fructose 6-phosphate = GDP + beta-D-fructofuranosyl-alpha-D-mannopyranoside 6F-phosphate
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PATHWAY SOURCE
PATHWAYS
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