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Literature summary for 3.1.3.B9 extracted from

  • Sakamoto, S.; Fujikawa, Y.; Tanaka, N.; Esaka, M.
    Molecular cloning and characterization of L-galactose-1-phosphate phosphatase from tobacco (Nicotiana tabacum) (2012), Biosci. Biotechnol. Biochem., 76, 1155-1162.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expressed in Escherichia coli and in tobacco BY-2 cells Nicotiana tabacum

Localization

Localization Comment Organism GeneOntology No. Textmining
cytosol
-
Nicotiana tabacum 5829
-
nucleus
-
Nicotiana tabacum 5634
-

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ inhibits activity Nicotiana tabacum
Li+ inhibits activity Nicotiana tabacum
Mg2+ required Nicotiana tabacum

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
58000
-
GST-NtGPPase fusion protein Nicotiana tabacum

Organism

Organism UniProt Comment Textmining
Nicotiana tabacum
-
-
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.0035
-
substrate: myo-inositol 1-phosphate, pH 7.5, 30°C Nicotiana tabacum
0.0376
-
substrate: L-galactose 1-phosphate, pH 7.5, 30°C Nicotiana tabacum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-galactose 1-phosphate + H2O
-
Nicotiana tabacum L-galactose + phosphate
-
?
additional information enzyme also dephosphorylates myo-inositol 1-phosphate Nicotiana tabacum ?
-
?

Synonyms

Synonyms Comment Organism
L-galactose-1-phosphate phosphatase
-
Nicotiana tabacum
NtGPPase
-
Nicotiana tabacum

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
assay at Nicotiana tabacum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
-
Nicotiana tabacum

General Information

General Information Comment Organism
malfunction tobacco BY-2 cells over-expressing NtGPPase have a higher content of L-ascorbic acid 13 days after subculture compared to control cells Nicotiana tabacum