EC 6.3.1.2: glutamine synthetase

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CatLog read 130 records for EC 6.3.1.2 from 7 papers, for 8 organisms. Names in these papers: glutamine synthetase, cytosolic glutamine synthetase GLN1;3, cytosolic glutamine synthetase GLN1;4, glutamine synthetase (ExiGS) and 6 more.

Read from the paper by an AI model and checked against the paper by a second, separate AI run; code converted the units.

CatLog also holds 396 records for EC 6.3.1.2 that are not yet re-read: from its earlier version, built from the enzyme databases and partly checked against the papers. All records for EC 6.3.1.2 in Browse.

Papers

Papers with records for EC 6.3.1.2
Paper	Organisms	Records
Kinetic and mutagenic studies of the role of the active site residues Asp-50 and Glu-327 of Escherichia coli glutamine synthetase	Escherichia coli	48
Mutational analysis of Asp51 of Anabaena azollae glutamine synthetase. D51E mutation confers resistance to the active site inhibitors L-methionine-DL-sulfoximine and phosphinothricin	Anabaena azollae	20
doi:10.1080/00021369.1987.10868070	Bifidobacterium bifidum, Bifidobacterium breve and 1 more	18
Gln49 and Ser174 residues play critical roles in determining the catalytic efficiencies of plant glutamine synthetase	Arabidopsis thaliana	16
Kinetic properties and ammonium-dependent regulation of cytosolic isoenzymes of glutamine synthetase in Arabidopsis	Arabidopsis thaliana	14
Characterization of an L-phosphinothricin resistant glutamine synthetase from Exiguobacterium sp. and its improvement	Exiguobacterium sp.	8
Characterization and improved properties of Glutamine synthetase from Providencia vermicola by site-directed mutagenesis	Providencia vermicola	6

Records

Records for EC 6.3.1.2 read from the paper
Enzyme	Organism	Substrate	k_cat (s⁻¹)	K_m (mM)	k_cat/K_m (mM⁻¹ s⁻¹)	Conditions	Paper	Open record
cytosolic glutamine synthetase GLN1;1 (GS1)	Arabidopsis thaliana	adenosine 5'-triphosphate	—	0.3	—	pH 7.8, 30 °C	PMID 14757761	Open record: cytosolic glutamine synthetase GLN1;1 (GS1), adenosine 5'-triphosphate
cytosolic glutamine synthetase GLN1;1 (GS1)	Arabidopsis thaliana	L-glutamate	—	1.1	—	pH 7.8, 30 °C	PMID 14757761	Open record: cytosolic glutamine synthetase GLN1;1 (GS1), L-glutamate
cytosolic glutamine synthetase GLN1;2 (GS1)	Arabidopsis thaliana	adenosine 5'-triphosphate	—	1.1	—	pH 7.8, 30 °C	PMID 14757761	Open record: cytosolic glutamine synthetase GLN1;2 (GS1), adenosine 5'-triphosphate
cytosolic glutamine synthetase GLN1;2 (GS1)	Arabidopsis thaliana	ammonium	—	2.45	—	pH 7.8, 30 °C	PMID 14757761	Open record: cytosolic glutamine synthetase GLN1;2 (GS1), ammonium
cytosolic glutamine synthetase GLN1;2 (GS1)	Arabidopsis thaliana	L-glutamate	—	3.8	—	pH 7.8, 30 °C	PMID 14757761	Open record: cytosolic glutamine synthetase GLN1;2 (GS1), L-glutamate
cytosolic glutamine synthetase GLN1;3	Arabidopsis thaliana	ammonium	7.1	1.333	5.5	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;3, ammonium
cytosolic glutamine synthetase GLN1;3	Arabidopsis thaliana	L-glutamate	7.02	4.17	1.8	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;3, L-glutamate
cytosolic glutamine synthetase GLN1;3variant A174S	Arabidopsis thaliana	ammonium	6.19	0.334	19.9	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;3 variant A174S, ammonium
cytosolic glutamine synthetase GLN1;3variant A174S	Arabidopsis thaliana	L-glutamate	7.97	3.2	2.5	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;3 variant A174S, L-glutamate
cytosolic glutamine synthetase GLN1;3variant K49Q	Arabidopsis thaliana	ammonium	7.23	0.45	16.6	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;3 variant K49Q, ammonium
cytosolic glutamine synthetase GLN1;3variant K49Q	Arabidopsis thaliana	L-glutamate	6.59	3.2	2.1	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;3 variant K49Q, L-glutamate
cytosolic glutamine synthetase GLN1;3variant K49Q/A174S	Arabidopsis thaliana	ammonium	6.83	0.456	15.6	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;3 variant K49Q/A174S, ammonium
cytosolic glutamine synthetase GLN1;3variant K49Q/A174S	Arabidopsis thaliana	L-glutamate	8.08	2.4	3.4	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;3 variant K49Q/A174S, L-glutamate
cytosolic glutamine synthetase GLN1;3 (GS1)	Arabidopsis thaliana	adenosine 5'-triphosphate	—	0.85	—	pH 7.8, 30 °C	PMID 14757761	Open record: cytosolic glutamine synthetase GLN1;3 (GS1), adenosine 5'-triphosphate
cytosolic glutamine synthetase GLN1;3 (GS1)	Arabidopsis thaliana	ammonium	—	1.21	—	pH 7.8, 30 °C	PMID 14757761	Open record: cytosolic glutamine synthetase GLN1;3 (GS1), ammonium
cytosolic glutamine synthetase GLN1;3 (GS1)	Arabidopsis thaliana	L-glutamate	—	3.9	—	pH 7.8, 30 °C	PMID 14757761	Open record: cytosolic glutamine synthetase GLN1;3 (GS1), L-glutamate
cytosolic glutamine synthetase GLN1;4	Arabidopsis thaliana	ammonium	2.96	0.12	26.5	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;4, ammonium
cytosolic glutamine synthetase GLN1;4	Arabidopsis thaliana	L-glutamate	4.18	0.67	6.5	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;4, L-glutamate
cytosolic glutamine synthetase GLN1;4variant Q49K	Arabidopsis thaliana	ammonium	5.33	0.453	12.3	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;4 variant Q49K, ammonium
cytosolic glutamine synthetase GLN1;4variant Q49K	Arabidopsis thaliana	L-glutamate	4.96	1.14	4.6	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;4 variant Q49K, L-glutamate
cytosolic glutamine synthetase GLN1;4variant Q49K/S174A	Arabidopsis thaliana	ammonium	2.81	0.736	3.9	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;4 variant Q49K/S174A, ammonium
cytosolic glutamine synthetase GLN1;4variant Q49K/S174A	Arabidopsis thaliana	L-glutamate	2.97	1.43	2.1	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;4 variant Q49K/S174A, L-glutamate
cytosolic glutamine synthetase GLN1;4variant S174A	Arabidopsis thaliana	ammonium	2.16	0.119	20.2	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;4 variant S174A, ammonium
cytosolic glutamine synthetase GLN1;4variant S174A	Arabidopsis thaliana	L-glutamate	2.29	0.83	2.8	pH 7.8, 30 °C	PMID 16338958	Open record: cytosolic glutamine synthetase GLN1;4 variant S174A, L-glutamate
cytosolic glutamine synthetase GLN1;4 (GS1)	Arabidopsis thaliana	adenosine 5'-triphosphate	—	0.4	—	pH 7.8, 30 °C	PMID 14757761	Open record: cytosolic glutamine synthetase GLN1;4 (GS1), adenosine 5'-triphosphate
cytosolic glutamine synthetase GLN1;4 (GS1)	Arabidopsis thaliana	ammonium	—	0.048	—	pH 7.8, 30 °C	PMID 14757761	Open record: cytosolic glutamine synthetase GLN1;4 (GS1), ammonium
cytosolic glutamine synthetase GLN1;4 (GS1)	Arabidopsis thaliana	L-glutamate	—	0.6	—	pH 7.8, 30 °C	PMID 14757761	Open record: cytosolic glutamine synthetase GLN1;4 (GS1), L-glutamate
cytosolic glutamine synthetase GS1 (native, from Arabidopsis cell culture)	Arabidopsis thaliana	adenosine 5'-triphosphate	—	0.56	—	pH 7.8, 30 °C	PMID 14757761	Open record: cytosolic glutamine synthetase GS1 (native, from Arabidopsis cell culture), adenosine 5'-triphosphate
cytosolic glutamine synthetase GS1 (native, from Arabidopsis cell culture)	Arabidopsis thaliana	ammonium	—	0.58	—	pH 7.8, 30 °C	PMID 14757761	Open record: cytosolic glutamine synthetase GS1 (native, from Arabidopsis cell culture), ammonium
cytosolic glutamine synthetase GS1 (native, from Arabidopsis cell culture)	Arabidopsis thaliana	L-glutamate	—	4.4	—	pH 7.8, 30 °C	PMID 14757761	Open record: cytosolic glutamine synthetase GS1 (native, from Arabidopsis cell culture), L-glutamate
glutamine synthetase	Anabaena azollae	adenosine 5'-triphosphateTable 2	—	0.21	—	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase, adenosine 5'-triphosphate
glutamine synthetase	Anabaena azollae	adenosine 5'-triphosphatein the text	—	—	193	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase, adenosine 5'-triphosphate
glutamine synthetase	Anabaena azollae	ammoniumTable 2	—	0.05	—	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase, ammonium
glutamine synthetase	Anabaena azollae	ammoniumin the text	—	—	435	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase, ammonium
glutamine synthetase	Anabaena azollae	L-glutamateTable 2	42	1.5	28 calc.	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase, L-glutamate
glutamine synthetase	Anabaena azollae	L-glutamatein the text	—	—	27.8	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase, L-glutamate
glutamine synthetasevariant D51A	Anabaena azollae	adenosine 5'-triphosphate	—	0.05	—	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase variant D51A, adenosine 5'-triphosphate
glutamine synthetasevariant D51A	Anabaena azollae	ammonium	—	12.45	—	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase variant D51A, ammonium
glutamine synthetasevariant D51A	Anabaena azollae	L-glutamate	2.6	0.32	8.1 calc.	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase variant D51A, L-glutamate
glutamine synthetasevariant D51E	Anabaena azollae	adenosine 5'-triphosphateTable 2	—	10.6	—	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase variant D51E, adenosine 5'-triphosphate
glutamine synthetasevariant D51E	Anabaena azollae	adenosine 5'-triphosphatein the text	—	—	0.03	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase variant D51E, adenosine 5'-triphosphate
glutamine synthetasevariant D51E	Anabaena azollae	ammonium	—	0.55	—	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase variant D51E, ammonium
glutamine synthetasevariant D51E	Anabaena azollae	L-glutamateTable 2	0.33	16	0.021 calc.	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase variant D51E, L-glutamate
glutamine synthetasevariant D51E	Anabaena azollae	L-glutamatein the text	—	—	0.02	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase variant D51E, L-glutamate
glutamine synthetasevariant D51N	Anabaena azollae	adenosine 5'-triphosphate	—	0.12	—	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase variant D51N, adenosine 5'-triphosphate
glutamine synthetasevariant D51N	Anabaena azollae	ammonium	—	0.92	—	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase variant D51N, ammonium
glutamine synthetasevariant D51N	Anabaena azollae	L-glutamate	0.96	0.85	1.1 calc.	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase variant D51N, L-glutamate
glutamine synthetasevariant D51S	Anabaena azollae	adenosine 5'-triphosphate	—	0.07	—	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase variant D51S, adenosine 5'-triphosphate
glutamine synthetasevariant D51S	Anabaena azollae	ammonium	—	5.95	—	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase variant D51S, ammonium
glutamine synthetasevariant D51S	Anabaena azollae	L-glutamate	13.1	0.37	35 calc.	pH 7.5, 30 °C	PMID 10583418	Open record: glutamine synthetase variant D51S, L-glutamate
glutamine synthetase	Bifidobacterium bifidum	adenosine 5'-triphosphate	—	2	—	pH 6.5, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, adenosine 5'-triphosphate
glutamine synthetase	Bifidobacterium bifidum	adenosine 5'-triphosphate	—	2	—	pH 5.5, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, adenosine 5'-triphosphate
glutamine synthetase	Bifidobacterium bifidum	ammonia	—	0.56	—	pH 6.5, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, ammonia
glutamine synthetase	Bifidobacterium bifidum	ammonia	—	0.77	—	pH 5.5, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, ammonia
glutamine synthetase	Bifidobacterium bifidum	L-glutamate	—	25	—	pH 6.5, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, L-glutamate
glutamine synthetase	Bifidobacterium bifidum	L-glutamate	—	1.1	—	pH 5.5, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, L-glutamate
glutamine synthetase	Bifidobacterium breve	adenosine 5'-triphosphate	—	1.7	—	pH 6, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, adenosine 5'-triphosphate
glutamine synthetase	Bifidobacterium breve	adenosine 5'-triphosphate	—	2.3	—	pH 5.5, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, adenosine 5'-triphosphate
glutamine synthetase	Bifidobacterium breve	ammonia	—	0.59	—	pH 6, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, ammonia
glutamine synthetase	Bifidobacterium breve	ammonia	—	0.69	—	pH 5.5, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, ammonia
glutamine synthetase	Bifidobacterium breve	L-glutamate	—	21	—	pH 6, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, L-glutamate
glutamine synthetase	Bifidobacterium breve	L-glutamate	—	1.3	—	pH 5.5, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, L-glutamate
glutamine synthetase	Bifidobacterium pseudolongum	adenosine 5'-triphosphate	—	1.5	—	pH 6, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, adenosine 5'-triphosphate
glutamine synthetase	Bifidobacterium pseudolongum	adenosine 5'-triphosphate	—	2.5	—	pH 5.5, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, adenosine 5'-triphosphate
glutamine synthetase	Bifidobacterium pseudolongum	ammonia	—	0.69	—	pH 6, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, ammonia
glutamine synthetase	Bifidobacterium pseudolongum	ammonia	—	0.71	—	pH 5.5, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, ammonia
glutamine synthetase	Bifidobacterium pseudolongum	L-glutamate	—	18	—	pH 6, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, L-glutamate
glutamine synthetase	Bifidobacterium pseudolongum	L-glutamate	—	2.1	—	pH 5.5, 37 °C	doi:10.1080/00021369.1987.10868070	Open record: glutamine synthetase, L-glutamate
glutamine synthetase	Escherichia coli	adenosine 5'-triphosphateTable 1	—	6 × 10⁻⁴	—	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase, adenosine 5'-triphosphate
glutamine synthetase	Escherichia coli	adenosine 5'-triphosphateTable 1	—	0.4	—	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase, adenosine 5'-triphosphate
glutamine synthetase	Escherichia coli	adenosine 5'-triphosphateTable 2	—	—	3.3 × 10³	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase, adenosine 5'-triphosphate
glutamine synthetase	Escherichia coli	adenosine 5'-triphosphateTable 2	—	—	100	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase, adenosine 5'-triphosphate
glutamine synthetase	Escherichia coli	ammoniumTable 1	—	0.1	—	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase, ammonium
glutamine synthetase	Escherichia coli	ammoniumTable 1	—	0.1	—	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase, ammonium
glutamine synthetase	Escherichia coli	ammoniumTable 2	—	—	20	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase, ammonium
glutamine synthetase	Escherichia coli	ammoniumTable 2	—	—	500	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase, ammonium
glutamine synthetase	Escherichia coli	L-glutamateTable 1	2	0.05	40 calc.	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase, L-glutamate
glutamine synthetase	Escherichia coli	L-glutamateTable 1	50	5.5	9.1 calc.	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase, L-glutamate
glutamine synthetase	Escherichia coli	L-glutamateTable 2	—	—	40	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase, L-glutamate
glutamine synthetase	Escherichia coli	L-glutamateTable 2	—	—	9.1	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase, L-glutamate
glutamine synthetasevariant D50A	Escherichia coli	adenosine 5'-triphosphateTable 1	—	0.0036	—	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50A, adenosine 5'-triphosphate
glutamine synthetasevariant D50A	Escherichia coli	adenosine 5'-triphosphateTable 1	—	0.6	—	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50A, adenosine 5'-triphosphate
glutamine synthetasevariant D50A	Escherichia coli	adenosine 5'-triphosphateTable 2	—	—	800	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50A, adenosine 5'-triphosphate
glutamine synthetasevariant D50A	Escherichia coli	adenosine 5'-triphosphateTable 2	—	—	50	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50A, adenosine 5'-triphosphate
glutamine synthetasevariant D50A	Escherichia coli	ammoniumTable 1	—	44	—	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50A, ammonium
glutamine synthetasevariant D50A	Escherichia coli	ammoniumTable 1	—	54	—	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50A, ammonium
glutamine synthetasevariant D50A	Escherichia coli	ammoniumTable 2	—	—	0.1	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50A, ammonium
glutamine synthetasevariant D50A	Escherichia coli	ammoniumTable 2	—	—	0.5	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50A, ammonium
glutamine synthetasevariant D50A	Escherichia coli	L-glutamateTable 1	3	0.2	15 calc.	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50A, L-glutamate
glutamine synthetasevariant D50A	Escherichia coli	L-glutamateTable 1	29	8	3.6 calc.	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50A, L-glutamate
glutamine synthetasevariant D50A	Escherichia coli	L-glutamateTable 2	—	—	15	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50A, L-glutamate
glutamine synthetasevariant D50A	Escherichia coli	L-glutamateTable 2	—	—	3.6	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50A, L-glutamate
glutamine synthetasevariant D50E	Escherichia coli	adenosine 5'-triphosphateTable 1	—	0.31	—	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50E, adenosine 5'-triphosphate
glutamine synthetasevariant D50E	Escherichia coli	adenosine 5'-triphosphateTable 1	—	0.6	—	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50E, adenosine 5'-triphosphate
glutamine synthetasevariant D50E	Escherichia coli	adenosine 5'-triphosphateTable 2	—	—	30	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50E, adenosine 5'-triphosphate
glutamine synthetasevariant D50E	Escherichia coli	adenosine 5'-triphosphateTable 2	—	—	0.2	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50E, adenosine 5'-triphosphate
glutamine synthetasevariant D50E	Escherichia coli	ammoniumTable 1	—	1.2	—	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50E, ammonium
glutamine synthetasevariant D50E	Escherichia coli	ammoniumTable 1	—	0.1	—	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50E, ammonium
glutamine synthetasevariant D50E	Escherichia coli	ammoniumTable 2	—	—	8.3	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50E, ammonium
glutamine synthetasevariant D50E	Escherichia coli	ammoniumTable 2	—	—	1	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50E, ammonium
glutamine synthetasevariant D50E	Escherichia coli	L-glutamateTable 1	10	5.4	1.9 calc.	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50E, L-glutamate
glutamine synthetasevariant D50E	Escherichia coli	L-glutamateTable 1	0.1	54	0.0019 calc.	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50E, L-glutamate
glutamine synthetasevariant D50E	Escherichia coli	L-glutamateTable 2	—	—	1.9	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50E, L-glutamate
glutamine synthetasevariant D50E	Escherichia coli	L-glutamateTable 2	—	—	0.002	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant D50E, L-glutamate
glutamine synthetasevariant E327A	Escherichia coli	adenosine 5'-triphosphateTable 1	—	0.001	—	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant E327A, adenosine 5'-triphosphate
glutamine synthetasevariant E327A	Escherichia coli	adenosine 5'-triphosphateTable 1	—	0.16	—	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant E327A, adenosine 5'-triphosphate
glutamine synthetasevariant E327A	Escherichia coli	adenosine 5'-triphosphateTable 2	—	—	1 × 10³	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant E327A, adenosine 5'-triphosphate
glutamine synthetasevariant E327A	Escherichia coli	adenosine 5'-triphosphateTable 2	—	—	200	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant E327A, adenosine 5'-triphosphate
glutamine synthetasevariant E327A	Escherichia coli	ammoniumTable 1	—	2.5	—	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant E327A, ammonium
glutamine synthetasevariant E327A	Escherichia coli	ammoniumTable 1	—	13	—	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant E327A, ammonium
glutamine synthetasevariant E327A	Escherichia coli	ammoniumTable 2	—	—	0.4	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant E327A, ammonium
glutamine synthetasevariant E327A	Escherichia coli	ammoniumTable 2	—	—	2	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant E327A, ammonium
glutamine synthetasevariant E327A	Escherichia coli	L-glutamateTable 1	1	0.04	25 calc.	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant E327A, L-glutamate
glutamine synthetasevariant E327A	Escherichia coli	L-glutamateTable 1	25	2	12 calc.	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant E327A, L-glutamate
glutamine synthetasevariant E327A	Escherichia coli	L-glutamateTable 2	—	—	25	pH 6.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant E327A, L-glutamate
glutamine synthetasevariant E327A	Escherichia coli	L-glutamateTable 2	—	—	12.5	pH 7.5, 25 °C	PMID 7904829	Open record: glutamine synthetase variant E327A, L-glutamate
glutamine synthetase (ExiGS)	Exiguobacterium sp.	hydroxylamine	1.39	5.6	0.249	pH 7, 35 °C	PMID 28175947	Open record: glutamine synthetase (ExiGS), hydroxylamine
glutamine synthetase (ExiGS)	Exiguobacterium sp.	L-glutamine	1.62	12	0.135	pH 7, 35 °C	PMID 28175947	Open record: glutamine synthetase (ExiGS), L-glutamine
glutamine synthetase (ExiGS)variant E60A	Exiguobacterium sp.	hydroxylamine	8.72	4.57	1.91	pH 7, 45 °C	PMID 28175947	Open record: glutamine synthetase (ExiGS) variant E60A, hydroxylamine
glutamine synthetase (ExiGS)variant E60A	Exiguobacterium sp.	L-glutamine	9.27	8.88	1.04	pH 7, 45 °C	PMID 28175947	Open record: glutamine synthetase (ExiGS) variant E60A, L-glutamine
glutamine synthetase (ExiGS)variant E60A/R64G	Exiguobacterium sp.	hydroxylamine	8.58	5.67	1.51	pH 7, 50 °C	PMID 28175947	Open record: glutamine synthetase (ExiGS) variant E60A/R64G, hydroxylamine
glutamine synthetase (ExiGS)variant E60A/R64G	Exiguobacterium sp.	L-glutamine	8.96	6.73	1.33	pH 7, 50 °C	PMID 28175947	Open record: glutamine synthetase (ExiGS) variant E60A/R64G, L-glutamine
glutamine synthetase (ExiGS)variant R64G	Exiguobacterium sp.	hydroxylamine	12	3.93	3.06	pH 7, 40 °C	PMID 28175947	Open record: glutamine synthetase (ExiGS) variant R64G, hydroxylamine
glutamine synthetase (ExiGS)variant R64G	Exiguobacterium sp.	L-glutamine	13.4	9.82	1.36	pH 7, 40 °C	PMID 28175947	Open record: glutamine synthetase (ExiGS) variant R64G, L-glutamine
glutamine synthetase (PveGS)	Providencia vermicola	adenosine 5'-diphosphate disodium salt	9.14	2.52 × 10⁻⁴	3.63 × 10⁴	pH 8, 35 °C	PMID 30353099	Open record: glutamine synthetase (PveGS), adenosine 5'-diphosphate disodium salt
glutamine synthetase (PveGS)	Providencia vermicola	Hydroxylamine	17	15.7	1.08	pH 8, 35 °C	PMID 30353099	Open record: glutamine synthetase (PveGS), Hydroxylamine
glutamine synthetase (PveGS)	Providencia vermicola	L-Glutamine	30.5	32.6	0.936	pH 8, 35 °C	PMID 30353099	Open record: glutamine synthetase (PveGS), L-Glutamine
glutamine synthetase (PveGS)variant S54A	Providencia vermicola	adenosine 5'-diphosphate disodium salt	15.2	1.02 × 10⁻⁴	1.49 × 10⁵	pH 7, 35 °C	PMID 30353099	Open record: glutamine synthetase (PveGS) variant S54A, adenosine 5'-diphosphate disodium salt
glutamine synthetase (PveGS)variant S54A	Providencia vermicola	Hydroxylamine	19.6	4.6	4.27	pH 7, 35 °C	PMID 30353099	Open record: glutamine synthetase (PveGS) variant S54A, Hydroxylamine
glutamine synthetase (PveGS)variant S54A	Providencia vermicola	L-Glutamine	41.9	23.8	1.76	pH 7, 35 °C	PMID 30353099	Open record: glutamine synthetase (PveGS) variant S54A, L-Glutamine