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Literature summary for 2.4.1.9 extracted from

  • Charoenwongpaiboon, T.; Sitthiyotha, T.; Na Ayutthaya, P.P.; Wangpaiboon, K.; Chunsrivirot, S.; Hengsakul Prousoontorn, M.; Pichyangkura, R.
    Modulation of fructooligosaccharide chain length and insight into the product binding motif of Lactobacillus reuteri 121 inulosucrase (2019), Carbohydr. Polym., 209, 111-121 .
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expressed in Escherichia coli BL21(DE3) cells Limosilactobacillus reuteri

Protein Variants

Protein Variants Comment Organism
D479A the mutant shows 80% of wild type transglycosylation activity. For hydrolytic activity, the catalytic turnover rate (kcat) of the mutant is slightly lower than that of the wild type enzyme Limosilactobacillus reuteri
D689A for hydrolytic activity, the catalytic turnover rate (kcat) of the mutant is slightly lower than that of the wild type enzyme Limosilactobacillus reuteri
N414A the mutation does not affect fructooligosaccharide production but causes the production of shorter oligosaccharides compared to the wild type Limosilactobacillus reuteri
N543A the mutant shows 67% of wild type transglycosylation activity. For hydrolytic activity, the catalytic turnover rate (kcat) of the mutant is slightly lower than that of the wild type enzyme Limosilactobacillus reuteri
N555A the mutant shows 75% of wild type transglycosylation activity. For hydrolytic activity, the catalytic turnover rate (kcat) of the mutant is slightly lower than that of the wild type enzyme Limosilactobacillus reuteri
N561A the mutant enzyme incompletely hydrolyzes sucrose at 50°C though equivalent initial enzymatic activity is used Limosilactobacillus reuteri
R483A the mutant shows 73% of wild type transglycosylation activity. For hydrolytic activity, the catalytic turnover rate (kcat) of the mutant is slightly lower than that of the wild type enzyme Limosilactobacillus reuteri
W551A the mutant shows 58% of wild type transglycosylation activity. For hydrolytic activity, the catalytic turnover rate (kcat) of the mutant is slightly lower than that of the wild type enzyme. The mutant enzyme incompletely hydrolyzes sucrose at 50°C though equivalent initial enzymatic activity is used Limosilactobacillus reuteri

Organism

Organism UniProt Comment Textmining
Limosilactobacillus reuteri
-
-
-
Limosilactobacillus reuteri 121
-
-
-

Purification (Commentary)

Purification (Comment) Organism
Toyopearl AF-Chelate-650M column chromatography Limosilactobacillus reuteri

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
additional information the enzyme also hydrolyzes sucrose to D-fructose and D-glucose Limosilactobacillus reuteri ?
-
-
additional information the enzyme also hydrolyzes sucrose to D-fructose and D-glucose Limosilactobacillus reuteri 121 ?
-
-
sucrose + sucrose
-
Limosilactobacillus reuteri 1-kestose + nystose + fructooligosaccharides
-
?
sucrose + sucrose
-
Limosilactobacillus reuteri 121 1-kestose + nystose + fructooligosaccharides
-
?

Synonyms

Synonyms Comment Organism
INU
-
Limosilactobacillus reuteri

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
50
-
-
Limosilactobacillus reuteri

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5 6
-
Limosilactobacillus reuteri