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Literature summary for 1.2.1.9 extracted from

  • Avilan, L.; Maberly, S.; Mekhalfi, M.; Plateau, J.; Puppo, C.; Gontero, B.
    Regulation of glyceraldehyde-3-phosphate dehydrogenase in the eustigmatophyte Pseudocharaciopsis ovalis is intermediate between a chlorophyte and a diatom (2012), Eur. J. Phycol., 47, 207-215.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
NADP+ there is a 1.5fold increase of enzyme activity with NADP+ at concentrations higher than 0.5 mM Asterionella formosa
NADP+ there is a small increase of enzyme activity with NADP+ at concentrations higher than 0.5 mM Chlamydomonas reinhardtii
NADP+ there is a small increase of enzyme activity with NADP+ at concentrations higher than 0.5 mM Pseudocharaciopsis ovalis

Inhibitors

Inhibitors Comment Organism Structure
NADPH NADPH causes a large inhibition in enzyme activity even at very low concentrations (0.01-0.02?mM) Asterionella formosa
NADPH under oxidized conditions, NADPH causes a large inhibition in enzyme activity even at very low concentrations (0.01-0.02 mM) Pseudocharaciopsis ovalis

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
D-glyceraldehyde 3-phosphate + NADP+ + H2O Chlamydomonas reinhardtii
-
3-phospho-D-glycerate + NADPH + H+
-
?
D-glyceraldehyde 3-phosphate + NADP+ + H2O Pseudocharaciopsis ovalis
-
3-phospho-D-glycerate + NADPH + H+
-
?
D-glyceraldehyde 3-phosphate + NADP+ + H2O Asterionella formosa
-
3-phospho-D-glycerate + NADPH + H+
-
?

Organism

Organism UniProt Comment Textmining
Asterionella formosa
-
-
-
Chlamydomonas reinhardtii
-
-
-
Pseudocharaciopsis ovalis
-
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
D-glyceraldehyde 3-phosphate + NADP+ + H2O
-
Chlamydomonas reinhardtii 3-phospho-D-glycerate + NADPH + H+
-
?
D-glyceraldehyde 3-phosphate + NADP+ + H2O
-
Pseudocharaciopsis ovalis 3-phospho-D-glycerate + NADPH + H+
-
?
D-glyceraldehyde 3-phosphate + NADP+ + H2O
-
Asterionella formosa 3-phospho-D-glycerate + NADPH + H+
-
?

Synonyms

Synonyms Comment Organism
NADPH-dependent GAPDH
-
Chlamydomonas reinhardtii
NADPH-dependent GAPDH
-
Pseudocharaciopsis ovalis
NADPH-dependent GAPDH
-
Asterionella formosa

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.2 8.1
-
Asterionella formosa
8 9
-
Chlamydomonas reinhardtii
8 9
-
Pseudocharaciopsis ovalis

Cofactor

Cofactor Comment Organism Structure
NADP+
-
Chlamydomonas reinhardtii
NADP+
-
Pseudocharaciopsis ovalis
NADP+
-
Asterionella formosa

Expression

Organism Comment Expression
Chlamydomonas reinhardtii the enzyme is down-regulated in the dark down
Pseudocharaciopsis ovalis the enzyme is down-regulated in the dark down
Asterionella formosa the enzyme is not down-regulated in the dark additional information