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Information on EC 4.2.1.159 - dTDP-4-dehydro-6-deoxy-alpha-D-glucopyranose 2,3-dehydratase

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EC Tree
     4 Lyases
         4.2 Carbon-oxygen lyases
             4.2.1 Hydro-lyases
                4.2.1.159 dTDP-4-dehydro-6-deoxy-alpha-D-glucopyranose 2,3-dehydratase
IUBMB Comments
The enzyme participates in the biosynthesis of several deoxysugars, including beta-L-4-epi-vancosamine, alpha-L-megosamine, L- and D-olivose, D-oliose, D-mycarose, forosamine and beta-L-digitoxose. In vitro the intermediate can undergo a spontaneous decomposition to maltol [2,3].
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The enzyme appears in viruses and cellular organisms
Synonyms
D-olivose, D-oliose and D-mycarose 2,3-dehydratase, EryBV, evaA, jadO, megBVI, mtmV, oleV, spnO, TDP-4-keto-6-deoxy-D-glucose 2,3-dehydratase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
dTDP-2,6-dideoxy-D-glycero-hex-2-enos-4-ulose = dTDP-3,4-didehydro-2,6-dideoxy-alpha-D-glucose
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(1b), spontaneous
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dTDP-4-dehydro-6-deoxy-alpha-D-glucopyranose = dTDP-2,6-dideoxy-D-glycero-hex-2-enos-4-ulose + H2O
show the reaction diagram
(1a)
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dTDP-4-dehydro-6-deoxy-alpha-D-glucopyranose = dTDP-3,4-didehydro-2,6-dideoxy-alpha-D-glucose + H2O
show the reaction diagram
overall reaction
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