Bifunctional glutamine-synthetase adenylyltransferase/deadenyltransferase; Involved in the regulation of glutamine synthetase GlnA, a key enzyme in the process to assimilate ammonia. When cellular nitrogen levels are high, the C-terminal adenylyl transferase (AT) inactivates GlnA by covalent transfer of an adenylyl group from ATP to specific tyrosine residue of GlnA, thus reducing its activity. Conversely, when nitrogen levels are low, the N-terminal adenylyl removase (AR) activates GlnA by removing the adenylyl group by phosphorolysis, increasing its activity. The regulatory region of [...]

NAD-glutamate dehydrogenase; Derived by automated computational analysis using gene prediction method: Protein Homology.

Nitrite reductase; Derived by automated computational analysis using gene prediction method: Protein Homology; Belongs to the nitrite and sulfite reductase 4Fe-4S domain family.

Converts 2-oxoglutarate to glutamate; in Escherichia coli this enzyme plays a role in glutamate synthesis when the cell is under energy restriction; uses NADPH; forms a homohexamer; Derived by automated computational analysis using gene prediction method: Protein Homology; Belongs to the Glu/Leu/Phe/Val dehydrogenases family.

Glutamine--fructose-6-phosphate aminotransferase; Catalyzes the first step in hexosamine metabolism, converting fructose-6P into glucosamine-6P using glutamine as a nitrogen source.

Carbamoyl phosphate synthase large subunit; Four CarB-CarA dimers form the carbamoyl phosphate synthetase holoenzyme that catalyzes the production of carbamoyl phosphate; CarB is responsible for the amidotransferase activity; Derived by automated computational analysis using gene prediction method: Protein Homology.

Glycine dehydrogenase; The glycine cleavage system catalyzes the degradation of glycine. The P protein binds the alpha-amino group of glycine through its pyridoxal phosphate cofactor; CO(2) is released and the remaining methylamine moiety is then transferred to the lipoamide cofactor of the H protein; Belongs to the GcvP family.

Glutamine synthetase; Derived by automated computational analysis using gene prediction method: Protein Homology; Belongs to the glutamine synthetase family.

Carbamoyl phosphate synthase small subunit; Derived by automated computational analysis using gene prediction method: Protein Homology; Belongs to the CarA family.