Ligand lactulose

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Basic Ligand Information

Molecular Structure
Picture of lactulose (click for magnification)
Molecular Formula
BRENDA Name
InChIKey
C12H22O11
lactulose
JCQLYHFGKNRPGE-FCVZTGTOSA-N
Synonyms:
4-O-beta-D-galactopyranosyl-D-fructose, 4-O-beta-D-galactopyranosyl-D-fructoside

Roles as Enzyme Ligand

In Vivo Substrate in Enzyme-catalyzed Reactions (3 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
lactulose + H2O = D-fructose + D-galactose
show the reaction diagram
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4-O-beta-D-galactopyranosyl-D-fructoside + H2O = beta-D-galactose + D-fructose
show the reaction diagram
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2 lactulose = lactose + epilactose
show the reaction diagram
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In Vivo Product in Enzyme-catalyzed Reactions (1 result)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
lactose = lactulose
show the reaction diagram
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Substrate in Enzyme-catalyzed Reactions (14 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
lactulose + O2 = ?
show the reaction diagram
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lactulose + acceptor = ?
show the reaction diagram
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UDP-galactose + lactulose = UDP + beta-D-galactosyl-1,3-lactulose
show the reaction diagram
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sucrose + lactulose = D-fructose + lactulosucrose
show the reaction diagram
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lactulose + H2O = ?
show the reaction diagram
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lactulose + H2O = D-galactose + D-fructose
show the reaction diagram
-
4-O-beta-D-galactopyranosyl-D-fructoside + H2O = beta-D-galactose + D-fructose
show the reaction diagram
-
2 lactulose = lactose + epilactose
show the reaction diagram
-

Product in Enzyme-catalyzed Reactions (3 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE

Enzyme Kinetic Parameters

kcat Value (Turnover Number) (7 results)

EC NUMBER
TURNOVER NUMBER [1/S]
TURNOVER NUMBER MAXIMUM [1/S]
COMMENTARY
LITERATURE
0.151
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KM Value (13 results)

EC NUMBER
KM VALUE [MM]
KM VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
67
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-

References & Links

Links to other databases for lactulose

ChEBI
PubChem
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PubChem