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Literature summary for 1.1.1.49 extracted from

  • Hauschild, R.; von Schaewen, A.
    Differential regulation of glucose-6-phosphate dehydrogenase isoenzyme activities in potato (2003), Plant Physiol., 133, 47-62.
    View publication on PubMedView publication on EuropePMC

Activating Compound

Activating Compound Comment Organism Structure
additional information light and metabolizable sugars induce the cytosolic isozyme by increased de novo protein synthesis, while the plastidic isozymes are unaffected Solanum tuberosum
paraquat activates plastidic isozymes by 10fold by direct action on the enzyme, no activation of the cytosolic isozyme Solanum tuberosum

Cloned(Commentary)

Cloned (Comment) Organism
cytosolic isozyme, DNA sequence determination, expression in Escherichia coli Solanum tuberosum

Inhibitors

Inhibitors Comment Organism Structure
3-(3,4-dichlorophenyl)-1,1'-dimethyl urea cytosolic isozyme, inhibition by uncoupling of photosynthetic electron transport Solanum tuberosum
cycloheximide
-
Solanum tuberosum
additional information the cytosolic isoyzme is not affected by osmotic change, phosphate sequestration, or ocidative stress Solanum tuberosum

Localization

Localization Comment Organism GeneOntology No. Textmining
cytosol
-
Solanum tuberosum 5829
-
plastid plastidic isozymes P1 and P2 are regulated by redox regulation Solanum tuberosum 9536
-

Metals/Ions

Metals/Ions Comment Organism Structure
additional information no effect on cytosolic isozyme by H2O2, FeCl3, NH4Cl, NaNO2, NaNO3, sulfate or endothall, okadaic acid and NaF Solanum tuberosum
nitrate activates plastidic isozymes by 10fold by direct action on the enzyme Solanum tuberosum
nitrite activates plastidic isozymes by 10fold by direct action on the enzyme Solanum tuberosum
sulfate activates plastidic isozymes by 10fold by direct action on the enzyme Solanum tuberosum

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
D-glucose 6-phosphate + NADP+ Solanum tuberosum differential regulation of isozymes, the cytosolic enzyme is regulated by sugar availability at transcriptional level, while the plastidic isozymes are regulated by redox mechanism D-glucono-1,5-lactone 6-phosphate + NADPH + H+
-
?

Organism

Organism UniProt Comment Textmining
Solanum tuberosum
-
4 weeks-old plants, isozymes in plastid, P1 and P2, and cytosol
-

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Solanum tuberosum
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
assay under nitrogen atmosphere Solanum tuberosum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
D-glucose 6-phosphate + NADP+
-
Solanum tuberosum D-glucono-1,5-lactone 6-phosphate + NADPH + H+
-
?
D-glucose 6-phosphate + NADP+ differential regulation of isozymes, the cytosolic enzyme is regulated by sugar availability at transcriptional level, while the plastidic isozymes are regulated by redox mechanism Solanum tuberosum D-glucono-1,5-lactone 6-phosphate + NADPH + H+
-
?

Synonyms

Synonyms Comment Organism
G6PDH
-
Solanum tuberosum
glucose-6-phosphate dehydrogenase
-
Solanum tuberosum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8
-
assay at Solanum tuberosum

Cofactor

Cofactor Comment Organism Structure
NADP+
-
Solanum tuberosum