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2 sucrose
D-glucose + beta-D-fructofuranosyl-(2,6)-beta-D-fructofuranosyl-(2,1)-alpha-D-glucopyranoside
sucrose + (2,6-beta-D-fructosyl)n
alpha-D-glucose + (2,6-beta-D-fructosyl)n+1
sucrose + (2,6-beta-D-fructosyl)n
D-glucose + (2,6-beta-D-fructosyl)n+1
sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
sucrose + alpha-D-glucosyl-(1->2)-[(2->6)-alpha-D-fructosyl]n
D-glucose + alpha-D-glucosyl-(1->2)-[(2->6)-alpha-D-fructosyl]n+1
sucrose + beta-D-fructofuranosyl-[(2,6)beta-D-fructofuranosyl-]n alpha-D-glucopyranoside
D-glucose + beta-D-fructofuranosyl-[(2,6)beta-D-fructofuranosyl-]n+1 alpha-D-glucopyranoside
sucrose + lactose
D-glucose + O-beta-D-galactopyranosyl-(1,4)-O-beta-D-glucopyranosyl-(1,2)-beta-D-fructofuranoside
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levansucrase transfers the fructosyl moiety of sucrose to lactose to form lactosucrose
i.e. lactosucrose or 4G-beta-D-galactosylsucrose
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?
sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
additional information
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2 sucrose
D-glucose + beta-D-fructofuranosyl-(2,6)-beta-D-fructofuranosyl-(2,1)-alpha-D-glucopyranoside
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2 sucrose
D-glucose + beta-D-fructofuranosyl-(2,6)-beta-D-fructofuranosyl-(2,1)-alpha-D-glucopyranoside
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sucrose + (2,6-beta-D-fructosyl)n
alpha-D-glucose + (2,6-beta-D-fructosyl)n+1
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capacity to produce extracellular homopolysaccharides of fructose, modulation of the composition of the biofilms that form on teeth
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?
sucrose + (2,6-beta-D-fructosyl)n
alpha-D-glucose + (2,6-beta-D-fructosyl)n+1
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capacity to produce extracellular homopolysaccharides of fructose, modulation of the composition of the biofilms that form on teeth
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sucrose + (2,6-beta-D-fructosyl)n
D-glucose + (2,6-beta-D-fructosyl)n+1
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sucrose + (2,6-beta-D-fructosyl)n
D-glucose + (2,6-beta-D-fructosyl)n+1
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?
sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
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enzyme is probably involved in initiation and progression of dental caries and periodontal diseases
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?
sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
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enzyme is probably involved in initiation and progression of dental caries and periodontal diseases
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?
sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
Aerobacter levanicum
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levan biosynthesis
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?
sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
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activity is affected by sacU mutation
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?
sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
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activity is affected by sacU mutation
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?
sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
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activity is affected by sacU mutation
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?
sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
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synthesis of a high-molecular-mass fructan of the levan type
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?
sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
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translocation of the enzyme is a rate-limiting step
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?
sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
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sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
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transgenic plants
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sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
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transgenic plants
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sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
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biosynthesis of fructans, important in assimilate partitioning and possibly in stress tolerance in plants
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?
sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
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key enzyme for the formation of the graminans and phleins
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?
sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
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?
sucrose + (2,6-beta-D-fructosyl)n
glucose + (2,6-beta-D-fructosyl)n+1
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sucrose + alpha-D-glucosyl-(1->2)-[(2->6)-alpha-D-fructosyl]n
D-glucose + alpha-D-glucosyl-(1->2)-[(2->6)-alpha-D-fructosyl]n+1
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sucrose + alpha-D-glucosyl-(1->2)-[(2->6)-alpha-D-fructosyl]n
D-glucose + alpha-D-glucosyl-(1->2)-[(2->6)-alpha-D-fructosyl]n+1
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sucrose + alpha-D-glucosyl-(1->2)-[(2->6)-alpha-D-fructosyl]n
D-glucose + alpha-D-glucosyl-(1->2)-[(2->6)-alpha-D-fructosyl]n+1
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sucrose + alpha-D-glucosyl-(1->2)-[(2->6)-alpha-D-fructosyl]n
D-glucose + alpha-D-glucosyl-(1->2)-[(2->6)-alpha-D-fructosyl]n+1
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sucrose + beta-D-fructofuranosyl-[(2,6)beta-D-fructofuranosyl-]n alpha-D-glucopyranoside
D-glucose + beta-D-fructofuranosyl-[(2,6)beta-D-fructofuranosyl-]n+1 alpha-D-glucopyranoside
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sucrose + beta-D-fructofuranosyl-[(2,6)beta-D-fructofuranosyl-]n alpha-D-glucopyranoside
D-glucose + beta-D-fructofuranosyl-[(2,6)beta-D-fructofuranosyl-]n+1 alpha-D-glucopyranoside
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-
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?
sucrose + beta-D-fructofuranosyl-[(2,6)beta-D-fructofuranosyl-]n alpha-D-glucopyranoside
D-glucose + beta-D-fructofuranosyl-[(2,6)beta-D-fructofuranosyl-]n+1 alpha-D-glucopyranoside
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-
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?
sucrose + beta-D-fructofuranosyl-[(2,6)beta-D-fructofuranosyl-]n alpha-D-glucopyranoside
D-glucose + beta-D-fructofuranosyl-[(2,6)beta-D-fructofuranosyl-]n+1 alpha-D-glucopyranoside
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-
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sucrose + beta-D-fructofuranosyl-[(2,6)beta-D-fructofuranosyl-]n alpha-D-glucopyranoside
D-glucose + beta-D-fructofuranosyl-[(2,6)beta-D-fructofuranosyl-]n+1 alpha-D-glucopyranoside
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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?
sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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?
sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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?
sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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?
sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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?
sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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?
sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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?
sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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?
sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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?
sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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?
sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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-
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sucrose + [beta-D-fructofuranosyl-(2->6)]n alpha-D-glucopyranoside
D-glucose + [beta-D-fructofuranosyl-(2->6)]n+1 alpha-D-glucopyranoside
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additional information
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Aerobacter levanicum
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6-beta-D-fructosyl)n is levan
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additional information
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levansucrase catalyzes three distinct reactions depending on the fructosyl acceptor molecule, including polymerization, transfructosylation, and hydrolysis. Wide substrate specificity of levansucrase toward monosaccharides, disaccharides, and aromatic and alkyl alcohols, producing diverse sucrose analogues, hetero-oligosaccharides (especially lactosucrose), and fructosides, overview
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additional information
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levansucrase catalyzes the synthesis of levan from sucrose, but it may also transfer the fructosyl moiety from sucrose to acceptor molecules included in the reaction medium
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additional information
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levan synthesis from sucrose, structure analysis by NMR spectrometry, overview. Levan size analysis by gel filtration. As sucrose concentration increases, the average molecular weight of the low dextran distribution decreases, at 4°C compared to 37°C, the low molecular weight distribution region increases in size at any given substrate concentration, and a maximum of 20.64 kDa is obtained at 200 g/l
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additional information
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levansucrase catalyzes three distinct reactions depending on the fructosyl acceptor molecule, including polymerization, transfructosylation, and hydrolysis. Wide substrate specificity of levansucrase toward monosaccharides, disaccharides, and aromatic and alkyl alcohols, producing diverse sucrose analogues, hetero-oligosaccharides (especially lactosucrose), and fructosides, overview
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additional information
?
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levan synthesis from sucrose, structure analysis by NMR spectrometry, overview. Levan size analysis by gel filtration. As sucrose concentration increases, the average molecular weight of the low dextran distribution decreases, at 4°C compared to 37°C, the low molecular weight distribution region increases in size at any given substrate concentration, and a maximum of 20.64 kDa is obtained at 200 g/l
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additional information
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in Lactobacillus sanfranciscensis TMW 1.392, sucrose metabolism and formation of fructan and 1-kestose is dependent on the activity of a single enzyme, levansucrase
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additional information
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in Lactobacillus sanfranciscensis TMW 1.392, sucrose metabolism and formation of fructan and 1-kestose is dependent on the activity of a single enzyme, levansucrase
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additional information
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levan synthesis from sucrose
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additional information
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levan synthesis from sucrose
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additional information
?
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levansucrase catalyzes three distinct reactions depending on the fructosyl acceptor molecule, including polymerization, transfructosylation, and hydrolysis. Wide substrate specificity of levansucrase toward monosaccharides, disaccharides, and aromatic and alkyl alcohols, producing diverse sucrose analogues, hetero-oligosaccharides (especially lactosucrose), and fructosides, overview
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additional information
?
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levan, a polymer of fructose linked by fructofurano side bonds, is produced by the transfructosylation reaction of levansucrase
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additional information
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the product levan has not a major impact on biofilm formation
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additional information
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thermo-responsive expression and differential secretion of the enzyme. The extracellular levansucrase is encoded by two functional genes, lscB and lscC. Transcription of lscB and lscC is temperature-dependent. Quantification of Lsc in supernatants and cellular protein samples of mutants defective in either lscB or lscC confirm that LscB secretion at low temperature is due to a combination of thermo-regulated transcription and secretion. LscC accumulates in the periplasmic space
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additional information
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isozyme Lsc3 synthesizes a high molecular weight fructan polymer, levan, from sucrose, but it also shows formation of fructooligosaccharides with potential prebiotic effects from both sucrose and raffinose, degrees of polymerization up to five, overview. Formation of fructooligosaccharides is enhanced by increased sucrose or raffinose concentrations of 600 mM and higher. Analysis of product in underivatized form by fully automated chip-based nanoelectrospray ionization, nanoESI, high-capacity ion trap mass spectrometry, HCT-MS. Structural analysis by tandem mass spectrometry, MS/MS, employing collision-induced dissociation at low energies, overview
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additional information
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isozyme Lsc3 synthesizes a high molecular weight fructan polymer, levan, from sucrose, but it also shows formation of fructooligosaccharides with potential prebiotic effects from both sucrose and raffinose, degrees of polymerization up to five, overview. Formation of fructooligosaccharides is enhanced by increased sucrose or raffinose concentrations of 600 mM and higher. Analysis of product in underivatized form by fully automated chip-based nanoelectrospray ionization, nanoESI, high-capacity ion trap mass spectrometry, HCT-MS. Structural analysis by tandem mass spectrometry, MS/MS, employing collision-induced dissociation at low energies, overview
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additional information
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Q60114
production of low molecular weight levan in permeabilized recombinant E. coli cells
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additional information
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6-beta-D-fructosyl)n is levan
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additional information
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levan biosynthesis and fructooligosaccharide biosynthesis
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additional information
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levan biosynthesis and fructooligosaccharide biosynthesis
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