Ligand maltoheptaose

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Basic Ligand Information

Molecular Structure
Picture of maltoheptaose (click for magnification)
Molecular Formula
BRENDA Name
InChIKey
C42H72O36
maltoheptaose
BNABBHGYYMZMOA-AHIHXIOASA-N
Synonyms:
1,4-alpha-D-amyloheptaose, alpha-D-glucopyranosyl-(1-4)-alpha-D-glucopyranosyl-(1-4)-alpha-D-glucopyranosyl-(1-4)-alpha-D-glucopyranosyl-(1-4)-alpha-D-glucopyranosyl-(1-4)-alpha-D-glucopyranosyl-(1-4)-alpha-D-glucopyranose, alpha-D-maltoheptaose, alpha-D-maltoheptaside, D-maltoheptaose, Glc-alpha-1,4-Glc-alpha-1,4-Glc-alpha-1,4-Glc-alpha-1,4-Glc-alpha-1,4-Glc-alpha-1,4-Glc, linear maltoheptaose, malto-heptaose, maltodextrin G7, maltoheptaoside, maltotheptaose

Roles as Enzyme Ligand

In Vivo Substrate in Enzyme-catalyzed Reactions (4 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
maltoheptaose + H2O = maltose + D-glucose
show the reaction diagram
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malto-heptaose + 6 H2O = 7 alpha-D-glucose
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In Vivo Product in Enzyme-catalyzed Reactions (2 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE

Substrate in Enzyme-catalyzed Reactions (76 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
D-maltoheptaose + O2 = ?
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D-maltoheptaose + acceptor = ?
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acetyl-CoA + maltoheptaose = CoA + acetyl-maltoheptaose
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UDP-glucose + maltoheptaose = UDP + ?
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1,4-alpha-D-amyloheptaose + (1,6-alpha-D-glucopyranosyl)n = dextran
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maltoheptaose = cyclo-(-6)-alpha-D-Glc-(1-4)-alpha-D-Glc-(1-4)-alpha-D-Glc-(1-4)-alpha-D-Glc-(1-4)-alpha-D-Glc-(1-) + ?
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sucrose + maltoheptaose = ?
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acarbose + maltoheptaose = acarviosyl-(1->4)-alpha-maltoheptaose + maltose
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maltoheptaose + H2O = ?
show the reaction diagram
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Maltoheptaose = ?
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maltoheptaose + H2O = maltotriose
show the reaction diagram
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maltoheptaose + H2O = ?
show the reaction diagram
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maltoheptaose + H2O = maltotriose + maltose + D-glucose
show the reaction diagram
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maltoheptaose + H2O = maltotetraose + maltotriose
show the reaction diagram
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Maltoheptaose = ?
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Product in Enzyme-catalyzed Reactions (28 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
ADP-alpha-D-glucose + maltohexaose = ADP + maltoheptaose
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sucrose + maltopentaose = D-fructose + maltohexaose + maltoheptaose
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maltoheptaosyltrehalose + H2O = maltoheptaose + alpha,alpha'-trehalose
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maltooctaose + H2O = maltoheptaose + beta-D-glucose
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Glc-alpha-1,4-Glc-alpha-1,4-Glc-alpha-1,4-Glc-alpha-1,4-(Glc-alpha-1,6)Glc-alpha-1,4-Glc-alpha-1,4-Glc + H2O = Glc-alpha-1,4-Glc-alpha-1,4-Glc-alpha-1,4-Glc-alpha-1,4-Glc-alpha-1,4-Glc-alpha-1,4-Glc + D-glucose
show the reaction diagram
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4-nitrophenyl alpha-D-maltoheptaoside + H2O = 4-nitrophenol + alpha-D-maltoheptaose
show the reaction diagram
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Activator in Enzyme-catalyzed Reactions (2 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
stimulating effect of maltooligosaccharides on the conversion of amylose, 15 mM, relative activity 124%
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stimulates, stimulation pattern of MtrA is similar to that of MtrB
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Inhibitor in Enzyme-catalyzed Reactions (2 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
40% inhibition at 15 mM
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Enzyme Kinetic Parameters

kcat Value (Turnover Number) (64 results)

EC NUMBER
TURNOVER NUMBER [1/S]
TURNOVER NUMBER MAXIMUM [1/S]
COMMENTARY
LITERATURE
4.09
-
pH 6.5, 85C, recombinant enzyme

KM Value (110 results)

EC NUMBER
KM VALUE [MM]
KM VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
6.02
-
100 mM ethanolamine buffer, pH 10.5
0.51
-
0.1 M ethanolamine buffer at pH 9.4
0.0017
-
-
7.41
-
pH 6.5, 85C, recombinant enzyme
0.1
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pH 5.0, 35C

Ki Value (1 result)

EC NUMBER
KI VALUE [MM]
KI VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
1.25
-
pH 5.0, 40C

References & Links

Links to other databases for maltoheptaose

ChEBI
PubChem
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PubChem