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Literature summary for 2.6.1.16 extracted from

  • Moriguchi, M.; Yamamoto, K.; Kawai, H.; Tochikura, T.
    The partial purification of by L-glutamine D-fructose 6-phosphate amidotransferase from Baker's yeast (1976), Agric. Biol. Chem., 40, 1655-1656.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
dithiothreitol 1 mM, activates 1.8fold Saccharomyces cerevisiae

General Stability

General Stability Organism
complete loss of activity after treatment with ammonium sulfate, 30-50% saturation Saccharomyces cerevisiae
dithiothreitol, D-fructose 6-phosphate, D-glucose 6-phosphate or L-glutamine, 1 mM, increases thermal stability at 37°C Saccharomyces cerevisiae
freezing and thawing has no effect on activity Saccharomyces cerevisiae

Inhibitors

Inhibitors Comment Organism Structure
Mercuric chloride 84% inhibition at 1 mM Saccharomyces cerevisiae
N-ethylmaleimide 78% inhibition at1 mM Saccharomyces cerevisiae
p-chloromercuribenzoate 84% inhibition at 0.1 mM Saccharomyces cerevisiae
UDP-N-acetylglucosamine 40% inhibition at 1 mM Saccharomyces cerevisiae

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
L-glutamine + D-fructose 6-phosphate Saccharomyces cerevisiae
-
L-glutamate + D-glucosamine 6-phosphate
-
?

Organism

Organism UniProt Comment Textmining
Saccharomyces cerevisiae
-
-
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.00783
-
-
Saccharomyces cerevisiae

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-glutamine + D-fructose 6-phosphate
-
Saccharomyces cerevisiae L-glutamate + D-glucosamine 6-phosphate
-
?
L-glutamine + D-fructose 6-phosphate specific for: L-glutamine Saccharomyces cerevisiae L-glutamate + D-glucosamine 6-phosphate
-
?

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
37
-
90 min, complete loss of activity without stabilizing agent. Dithiothreitol, D-fructose 6-phosphate, D-glucose 6-phosphate or L-glutamine, 1 mM, increase thermal stability at 37°C Saccharomyces cerevisiae

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
potassium phosphate buffer Saccharomyces cerevisiae