EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
1.7.5.1 | Salmonella enterica subsp. enterica serovar Typhimurium | A0A0H3N903 | respiratory nitrate reductase 1 alpha chain | - |
1.7.5.1 | Salmonella enterica subsp. enterica serovar Typhimurium SL1344 | A0A0H3N903 | respiratory nitrate reductase 1 alpha chain | - |
EC Number | Synonyms | Comment | Organism |
---|---|---|---|
1.7.5.1 | NarG | - |
Salmonella enterica subsp. enterica serovar Typhimurium |
EC Number | General Information | Comment | Organism |
---|---|---|---|
1.7.5.1 | physiological function | under nitrate-rich conditions, the nar and nap genes encoding a membrane-bound form and a periplasmic form of nitrate reductase, as well as NO-regulated genes encoding flavohaemoglobin, flavorubredoxin and hybrid cluster protein are induced following transition from the oxic to anoxic state, and 20% of nitrate consumed in steady-state is released as N2O when nitrite has accumulated to millimolar levels. In a narG mutant lacking membrane-bound nitrate reductase, the steady-state rate of N2O production was about 30-fold lower than that of the wild-type. A combination of nitrate-sufficiency, nitrite accumulation and an active Nar-type nitrate reductase leads to NO and thence N2O production, and this can account for up to 20% of the nitrate catabolized | Salmonella enterica subsp. enterica serovar Typhimurium |
1.7.99.4 | physiological function | under nitrate-rich conditions, the nar and nap genes encoding a membrane-bound form and a periplasmic form of nitrate reductase, as well as NO-regulated genes encoding flavohaemoglobin, flavorubredoxin and hybrid cluster protein are induced following transition from the oxic to anoxic state, and 20% of nitrate consumed in steady-state is released as N2O when nitrite has accumulated to millimolar levels. The kinetics of nitrate consumption, nitrite accumulation and N2O production are similar to those of wild-type in nitrate-sufficient cultures of a nap mutant. Under nitrate-limited conditions, periplasmic enzyme nap, but not nar, is upregulated following transition from oxic to anoxic metabolism and very little N2O production was observedA combination of nitrate-sufficiency, nitrite accumulation and an active Nar-type nitrate reductase leads to NO and thence N2O production, and this can account for up to 20% of the nitrate catabolized | Salmonella enterica subsp. enterica serovar Typhimurium |