EC Number |
Substrates |
Organism |
Products |
Reversibility |
---|
1.4.1.13 | more |
the FAD and 2[4Fe-4S]-containing enzyme does not act as glutamate synthase, which is supported by phylogenetic analyses. Rather, it catalyzes the NADPH-dependent reduction of oxygen to hydrogen peroxide and L-cystine to L-cysteine and also function as ferric and ferredoxin-NADP+ reductase. EhNO1 and EhNO2 show notable differences in substrate specificity and catalytic efficiency. EhNO1 has lower Km and higher kcat/Km values for ferric ion and ferredoxin than EhNO2, whereas EhNO2 prefers L-cystine as a substrate. EhNO1 and EhNO2 also reduce metronidazole |
Entamoeba histolytica |
? |
- |
? |
1.4.1.13 | more |
the FAD and 2[4Fe-4S]-containing enzyme does not act as glutamate synthase, which is supported by phylogenetic analyses. Rather, it catalyzes the NADPH-dependent reduction of oxygen to hydrogen peroxide and L-cystine to L-cysteine and also function as ferric and ferredoxin-NADP+ reductase. EhNO1 and EhNO2 show notable differences in substrate specificity and catalytic efficiency. EhNO1 has lower Km and higher kcat/Km values for ferric ion and ferredoxin than EhNO2, whereas EhNO2 prefers L-cystine as a substrate. EhNO1 and EhNO2 also reduce metronidazole |
Entamoeba histolytica HM1:IMSS cl 6 |
? |
- |
? |
1.4.1.13 | NH3 + 2-oxoglutarate + NADPH + H+ |
- |
Pyrococcus sp. |
L-glutamate + NADP+ |
- |
? |
1.4.1.13 | NH3 + 2-oxoglutarate + NADPH + H+ |
- |
Escherichia coli |
L-glutamate + NADP+ |
- |
? |
1.4.1.13 | NH3 + 2-oxoglutarate + NADPH + H+ |
- |
Klebsiella aerogenes |
L-glutamate + NADP+ |
- |
? |
1.4.1.13 | NH3 + 2-oxoglutarate + NADPH + H+ |
the specific activity of native enzyme using NH3 varies between 5% and 7% of the glutamine-dependent activity |
Escherichia coli |
L-glutamate + NADP+ |
- |
? |
1.4.1.13 | NH3 + 2-oxoglutarate + NADPH + H+ |
24% relative activity to L-glutamine with NADPH as electron donor and 6.3% relative activity to L-glutamine with NADH as electron donor |
Bacillus subtilis |
L-glutamate + NADP+ |
- |
? |
1.4.1.13 | NH3 + 2-oxoglutarate + NADPH + H+ |
the activity with 10 mM NH4+ ions is less than 2% that with L-glutamine |
Rhodospirillum rubrum |
L-glutamate + NADP+ |
- |
? |
1.4.1.13 | NH3 + 2-oxoglutarate + NADPH + H+ |
2% to 4% relative activity to L-glutamine |
Priestia megaterium |
L-glutamate + NADP+ |
- |
? |
1.4.1.13 | NH3 + 2-oxoglutarate + NADPH + H+ |
ammonia activity with 100 mM NH4Cl is about 6% of the glutamine activity with 5 mM L-glutamine |
Thiobacillus thioparus |
L-glutamate + NADP+ |
- |
? |