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Literature summary for 5.1.3.31 extracted from

  • Uechi, K.; Takata, G.; Fukai, Y.; Yoshihara, A.; Morimoto, K.
    Gene cloning and characterization of L-ribulose 3-epimerase from Mesorhizobium loti and its application to rare sugar production (2013), Biosci. Biotechnol. Biochem., 77, 511-515.
    View publication on PubMed

Application

Application Comment Organism
synthesis rare sugar production Mesorhizobium loti

Cloned(Commentary)

Cloned (Comment) Organism
-
Mesorhizobium loti

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
58
-
D-psicose pH 8.0, 60°C Mesorhizobium loti
140
-
D-tagatose pH 8.0, 60°C Mesorhizobium loti
230
-
L-xylulose pH 8.0, 60°C Mesorhizobium loti
291
-
L-ribulose pH 8.0, 60°C Mesorhizobium loti

Organism

Organism UniProt Comment Textmining
Mesorhizobium loti N0DP12
-
-
Pseudomonas cichorii O50580
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Mesorhizobium loti

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
D-fructose
-
Pseudomonas cichorii D-psicose
-
r
D-fructose relative activity with D-fructose is 4.1% compared to L-ribulose, relative activity with D-psicose is 2.3% compared to L-ribulose Mesorhizobium loti D-psicose
-
r
D-psicose relative activity with D-fructose is 4.1% compared to L-ribulose, relative activity with D-psicose is 2.3% compared to L-ribulose Mesorhizobium loti D-fructose
-
r
D-ribulose relative activity with D-ribulose is 20% compared to L-ribulose, relative activity with D-xylulose is 5.4% compared to L-ribulose Mesorhizobium loti D-xylulose
-
r
D-tagatose
-
Pseudomonas cichorii D-sorbose
-
r
D-tagatose relative activity with D-tagatose is 24% compared to L-ribulose, relative activity with D-sorbose is 6% compared to L-ribulose Mesorhizobium loti D-sorbose
-
r
L-ribulose
-
Pseudomonas cichorii L-xylulose
-
r
L-ribulose
-
Mesorhizobium loti L-xylulose
-
r
L-xylulose
-
Mesorhizobium loti L-ribulose
-
r

Synonyms

Synonyms Comment Organism
ketose 3-epimerase
-
Pseudomonas cichorii
ketose 3-epimerase
-
Mesorhizobium loti
L-RE
-
Mesorhizobium loti
L-ribulose 3-epimerase
-
Mesorhizobium loti
L-TE
-
Pseudomonas cichorii

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
60
-
assay at Pseudomonas cichorii
70
-
-
Mesorhizobium loti

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
0.0057
-
D-psicose pH 8.0, 60°C Mesorhizobium loti
0.057
-
D-tagatose pH 8.0, 60°C Mesorhizobium loti
0.14
-
L-xylulose pH 8.0, 60°C Mesorhizobium loti
0.22
-
L-ribulose pH 8.0, 60°C Mesorhizobium loti

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
assay at Pseudomonas cichorii
8
-
sodium phosphate buffer Mesorhizobium loti

kcat/KM [mM/s]

kcat/KM Value [1/mMs-1] kcat/KM Value Maximum [1/mMs-1] Substrate Comment Organism Structure
0.000093
-
L-ribulose pH 7.5, 60°C Pseudomonas cichorii
0.000098
-
D-psicose pH 8.0, 60°C Mesorhizobium loti
0.00017
-
D-psicose pH 7.5, 60°C Pseudomonas cichorii
0.00018
-
D-tagatose pH 7.5, 60°C Pseudomonas cichorii
0.00041
-
D-tagatose pH 8.0, 60°C Mesorhizobium loti
0.00061
-
L-xylulose pH 8.0, 60°C Mesorhizobium loti
0.00076
-
L-ribulose pH 8.0, 60°C Mesorhizobium loti