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Literature summary for 3.2.1.21 extracted from

  • Mohapatra, P.K.; Patro, L.; Raval, M.K.; Ramaswamy, N.K.; Biswal, U.C.; Biswal, B.
    Senescence-induced loss in photosynthesis enhances cell wall beta-glucosidase activity (2010), Physiol. Plant., 138, 346-355.
    View publication on PubMed

Localization

Localization Comment Organism GeneOntology No. Textmining
cell wall
-
Arabidopsis thaliana 5618
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
58000
-
SDS-PAGE Arabidopsis thaliana

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana
-
-
-

Purification (Commentary)

Purification (Comment) Organism
ammonium sulfate precipitation, Concanavalin A-Sepharose column chromatography, Shodex-phenyl HIC-814 column chromatography, and Sephacryl S-200 gel filtration Arabidopsis thaliana

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Arabidopsis thaliana
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.9
-
crude extract, at pH 5.5 and 50°C Arabidopsis thaliana
148.5
-
after 164.5fold purification, at pH 5.5 and 50°C Arabidopsis thaliana

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2-nitrophenyl beta-D-glucopyranoside + H2O 83% activity compared to 4-nitrophenyl-beta-D-glucopyranoside Arabidopsis thaliana 2-nitrophenol + D-glucopyranose
-
?
4-nitrophenyl beta-D-glucopyranoside + H2O 100% activity Arabidopsis thaliana 4-nitrophenol + D-glucopyranose
-
?
additional information the enzyme does not hydrolyze 4-nitrophenyl-beta-D-galactoside, cellobiose, D-salicin, and galacturonic acid Arabidopsis thaliana ?
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
50
-
-
Arabidopsis thaliana

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
30 60
-
Arabidopsis thaliana

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
60 90 about 50% activity at 60°C, about 30% activity at 70°C, about 10% activity at 80°C, no activity at 90°C Arabidopsis thaliana

pH Optimum

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

pH Range

pH Minimum pH Maximum Comment Organism
4.5 6.5
-
Arabidopsis thaliana

Expression

Organism Comment Expression
Arabidopsis thaliana senescence-induced loss in photosynthesis enhances cell wall beta-glucosidase activity up