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Literature summary for 3.2.1.21 extracted from

  • Ahn, Y.O.; Shimizu, B.; Sakata, K.; Gantulga, D.; Zhou, C.; Zhou, Z.; Bevan, D.R.; Esen, A.
    Scopolin-hydrolyzing beta-glucosidases in roots of Arabidopsis (2010), Plant Cell Physiol., 51, 132-43.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
protein PBPI binding protein, interacts with beta-glucosidases and activates them Arabidopsis thaliana
protein PBPII binding protein, interacts with beta-glucosidases and activates them Arabidopsis thaliana

Cloned(Commentary)

Cloned (Comment) Organism
cDNA expressed in insect cells, Baculovirus expression system Arabidopsis thaliana
cDNA is expressed in insect cells, Baculovirus expression system Arabidopsis thaliana

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.73
-
scopolin native enzyme, pH 6, 37°C Arabidopsis thaliana
0.81
-
scopolin recombinant enzyme, pH 6, 37°C Arabidopsis thaliana
5.8
-
esculin native enzyme, pH 6, 37°C Arabidopsis thaliana
9.7
-
esculin recombinant enzyme, pH 6, 37°C Arabidopsis thaliana

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
59700
-
BGLU 21, calculated from sequence Arabidopsis thaliana
59700
-
BGLU 23, calculated from sequence Arabidopsis thaliana
59800
-
BGLU 22, calculated from seuqence Arabidopsis thaliana
63000
-
SDS-PAGE, recombinant glycosylated protein Arabidopsis thaliana

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
scopolin + H2O Arabidopsis thaliana
-
scopoletin + beta-D-glucose
-
?
scopolin + H2O Arabidopsis thaliana
-
scopoletin + D-glucose
-
?

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana Q9C525
-
-
Arabidopsis thaliana Q9C8Y9
-
-
Arabidopsis thaliana Q9SR37
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
glycoprotein
-
Arabidopsis thaliana

Source Tissue

Source Tissue Comment Organism Textmining
root seedling Arabidopsis thaliana
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-MU-glucoside + H2O
-
Arabidopsis thaliana ?
-
?
DIMBOA-glucoside + H2O
-
Arabidopsis thaliana ?
-
?
esculin + H2O
-
Arabidopsis thaliana ?
-
?
scopolin + H2O
-
Arabidopsis thaliana scopoletin + beta-D-glucose
-
?
scopolin + H2O
-
Arabidopsis thaliana scopoletin + D-glucose
-
?

Synonyms

Synonyms Comment Organism
beta-glucosidase
-
Arabidopsis thaliana
BGLU21
-
Arabidopsis thaliana
BGLU22
-
Arabidopsis thaliana
BGLU23
-
Arabidopsis thaliana

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
35
-
-
Arabidopsis thaliana

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
40
-
95% activity Arabidopsis thaliana
50
-
dramatical decrease of activity above 50°C Arabidopsis thaliana

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.5
-
-
Arabidopsis thaliana

pH Stability

pH Stability pH Stability Maximum Comment Organism
5 7.5
-
Arabidopsis thaliana

Expression

Organism Comment Expression
Arabidopsis thaliana BGLU22 by cold and mannitol down
Arabidopsis thaliana BGLU23 by NaCl and mannitol down
Arabidopsis thaliana BGLU21 by cold, 2,4-dichlorophenoxyacetate and methyl jasmonate up
Arabidopsis thaliana BGLU22 by NaCl, 2,4-dichlorophenoxyacetate and methyl jasmonate up
Arabidopsis thaliana BGLU23 by 2,4-dichlorophenoxyacetate and methyl jasmonate up