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2.6.1.16: glutamine-fructose-6-phosphate transaminase (isomerizing)

This is an abbreviated version!
For detailed information about glutamine-fructose-6-phosphate transaminase (isomerizing), go to the full flat file.

Word Map on EC 2.6.1.16

Reaction

L-glutamine
+
D-fructose 6-phosphate
=
L-glutamate
+
D-glucosamine 6-phosphate

Synonyms

2-amino-2-deoxy-D-glucose-6-phosphate ketol-isomerase, BsglmS, EC 5.3.1.19, G-6-P synthase, Gfa1, Gfa1p, GFAT, GFAT1, GFAT2, GFPT1, GlcN-6-P synthase, GlmS, glmS ribozyme, glucosamine 6-phosphate synthase, glucosamine 6-phosphate synthetase, glucosamine phosphate isomerase (glutamine-forming), glucosamine synthase, glucosamine-6-P synthase, glucosamine-6-phosphate isomerase (glutamine-forming), glucosamine-6-phosphate synthase, glucosamine-6-phosphate synthetase, glucosamine-6P synthase, glucosamine:fructose-6-phosphate aminotransferase, glutamine-fructose 6-phosphate amidotransferase, glutamine-fructose 6-phosphate aminotransferase, glutamine-fructose-6-phosphate aminotransferase, glutamine-fructose-6-phosphate transaminase 1, glutamine: fructose-6-phosphate amidotransferase, glutamine: fructose-6-phosphate amidotransferase 1, glutamine: fructose-6-phosphate aminotransferase, glutamine:fructose-6-phosphate amidotransferase, glutamine:fructose-6-phosphate aminotransferase, hexosephosphate aminotransferase, isomerase, glucosamine phosphate (glutamine-forming), L-glutamine D-fructose 6-phosphate amidotransferase, L-glutamine fructose 6-phosphate transamidase, L-glutamine: D-fructose-6-phosphate amidotransferase, L-glutamine: L-fructose-6-phosphate amidotransferase, L-glutamine:D-fructose-6-phosphate amidotransferase, L-glutamine:D-fructose-6-phosphate amidotransferase (hexose isomerizing), L-glutamine:D-fructose-6-phosphate amidotransferase (hexose-isomerizing), L-glutamine:L-fructose-6-phosphate amidotransferase

ECTree

     2 Transferases
         2.6 Transferring nitrogenous groups
             2.6.1 Transaminases
                2.6.1.16 glutamine-fructose-6-phosphate transaminase (isomerizing)

General Stability

General Stability on EC 2.6.1.16 - glutamine-fructose-6-phosphate transaminase (isomerizing)

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GENERAL STABILITY
ORGANISM
UNIPROT
LITERATURE
can be concentrated by precipitation with 2.3 M ammonium sulfate with some concomitant loss of activity
-
complete loss of activity after treatment with ammonium sulfate, 30-50% saturation
-
dithiothreitol, D-fructose 6-phosphate, D-glucose 6-phosphate or L-glutamine, 1 mM, increases thermal stability at 37°C
-
extremely unstable during purification
-
freezing and thawing has no effect on activity
-
glucose 6-phosphate, 12 mM, required as protective agent during purification
-
inactivated by freezing and thawing
-
inactivated when exposed to a solution of pH 5.5 or below
isopropanol, 1%, stabilizes during purification
-
sucrose needed as stabilizing agent
-
very unstable
-