العربية
中国
Français
Deutsch
Ελληνική
हिन्दी
Italiano
日本語
Português
Русский
EspañolNITRATE REDUCTASE
'Nitrate reductase' enzymes are a group of enzymes which reduce nitrate to nitrite.
★ Nitrate reductase (1)- is a large and complex enzyme ; has multiple subunits and ~ 800 kD. Contains bound FAD, Mo, and cytochrome 557 and has ferredoxin Fe4S4 center. It is NADH/NADPH-dependent according to organism. Mo is bound to a cofactor containing a pteridine ring to form molybdopterin.
★ Nitrite reductase (2, 3, 4) catalyzes the last three steps in the reduction of nitrate to NH3. Contains one ferredoxin Fe2S2 center and one molecule of siroheme (partially reduced Fe porphyrin) and the electron donor for each step is ferredoxin.
★
★
★ Nitrate reductase (1)- is a large and complex enzyme ; has multiple subunits and ~ 800 kD. Contains bound FAD, Mo, and cytochrome 557 and has ferredoxin Fe4S4 center. It is NADH/NADPH-dependent according to organism. Mo is bound to a cofactor containing a pteridine ring to form molybdopterin.
★ Nitrite reductase (2, 3, 4) catalyzes the last three steps in the reduction of nitrate to NH3. Contains one ferredoxin Fe2S2 center and one molecule of siroheme (partially reduced Fe porphyrin) and the electron donor for each step is ferredoxin.
| Contents |
| External links |
External links
★
★
This article provided by Wikipedia. To edit the contents of this article, click here for original source.
psst.. try this: add to faves
