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Literature summary extracted from

  • Montanini, B.; Betti, M.; Marquez, A.J.; Balestrini, R.; Bonfante, P.; Ottonello, S.
    Distinctive properties and expression profiles of glutamine synthetase from a plant symbiotic fungus (2003), Biochem. J., 373, 357-368.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

EC Number Cloned (Comment) Organism
6.3.1.2 expressed in Escherichia coli BL21(DE3) Tuber borchii

Inhibitors

EC Number Inhibitors Comment Organism Structure
6.3.1.2 L-glutamine
-
Tuber borchii
6.3.1.2 L-methionine sulfoximine 50% inhibition at 47 mM Tuber borchii
6.3.1.2 L-phosphinothricin 50% inhibition at 0.5 mM Tuber borchii
6.3.1.2 Mg2+
-
Tuber borchii

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
6.3.1.2 0.17
-
ATP 37°C, pH 7.5 Tuber borchii
6.3.1.2 0.75
-
NH4+ 37°C, pH 7.5 Tuber borchii

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
6.3.1.2 39700
-
calculated from amino acid sequence Tuber borchii
6.3.1.2 42000
-
purified recombinant protein containing a hexahistidine-tag Tuber borchii
6.3.1.2 340000
-
gel filtration, minor peak at 175000 Da Tuber borchii

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
6.3.1.2 ATP + glutamate + NH4+ Tuber borchii central enzyme of nitrogen metabolism, involved in nitrogen assimilation pathway ADP + phosphate + L-glutamine
-
?

Organism

EC Number Organism UniProt Comment Textmining
6.3.1.2 Tuber borchii Q86ZU6 strain ATCC 95640
-

Purification (Commentary)

EC Number Purification (Comment) Organism
6.3.1.2 recombinant protein Tuber borchii

Source Tissue

EC Number Source Tissue Comment Organism Textmining
6.3.1.2 mycelium
-
Tuber borchii
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
6.3.1.2 ATP + glutamate + NH4+
-
Tuber borchii ADP + phosphate + L-glutamine
-
?
6.3.1.2 ATP + glutamate + NH4+ central enzyme of nitrogen metabolism, involved in nitrogen assimilation pathway Tuber borchii ADP + phosphate + L-glutamine
-
?