Ligand 4-methylumbelliferyl alpha-D-galactoside

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Basic Ligand Information

Molecular Structure
Picture of 4-methylumbelliferyl alpha-D-galactoside (click for magnification)
Molecular Formula
BRENDA Name
InChIKey
C16H18O8
4-methylumbelliferyl alpha-D-galactoside
YUDPTGPSBJVHCN-CHUNWDLHSA-N
Synonyms:
4-methylumbelliferyl-alpha-D-galactopyranoside, 4-methylumbelliferyl-alpha-galactopyranoside, 4-methylumbelliferyl alpha-D-galactopyranoside

Roles as Enzyme Ligand

Substrate in Enzyme-catalyzed Reactions (7 results)

EC NUMBER
LITERATURE
REACTION DIAGRAM
REACTION
ENZYME 3D STRUCTURE
show the reaction diagram
4-methylumbelliferyl alpha-D-galactopyranoside + H2O = 4-methylumbelliferone + alpha-D-galactopyranose
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show the reaction diagram
4-methylumbelliferyl-alpha-D-galactopyranoside + H2O = 4-methylumbelliferone + alpha-D-galactopyranose
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Product in Enzyme-catalyzed Reactions (1 result)

EC NUMBER
LITERATURE
REACTION DIAGRAM
REACTION
ENZYME 3D STRUCTURE
-
show the reaction diagram
4-methylumbelliferyl D-N-acetylneuraminyl-alpha-(2->3)-D-galactopyranoside + H2O = 4-methylumbelliferol + N-acetylneuraminate + 4-methylumbelliferyl alpha-D-galactopyranoside
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Enzyme Kinetic Parameters

kcat Value (Turnover Number) (1 result)

COMMENTARY
EC NUMBER
LITERATURE
TURNOVER NUMBER [1/S]
TURNOVER NUMBER MAXIMUM [1/S]
50°C, pH 4.5
49.8
-

KM Value (16 results)

COMMENTARY
EC NUMBER
KM VALUE [MM]
KM VALUE MAXIMUM [MM]
LITERATURE
50°C, pH 4.5
0.5
-
alpha-galactosidase A
2.9
-
alpha-galactosidase B
6.8
-
mutant enzyme Q279E and R301Q
2.8
-
pH 4.6, 37°C, mutant M51I
4
-
pH 4.6, 37°C, wild-type
4.5
-
pH 4.6, mutant enzyme E66D
2.3
-
pH 4.6, mutant enzyme S65A
3.4
-
pH 4.6, mutant enzyme S65T
3.5
-
pH 4.6, wild-type enzyme
2.3
-
wild-type enzyme
2.2
-

References & Links

Links to other databases for 4-methylumbelliferyl alpha-D-galactoside

ChEBI
PubChem
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PubChem