Wolinella succinogenesquinol:fumarate reductase and its comparison toE. colisuccinate:quinone reductase
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چکیده
منابع مشابه
Analysis of nitrate reductase mRNA expression and nitrate reductase activity in response to nitrogen supply
Nitrate is one of the major sources of nitrogen for the growth of plants. It is taken up by plant roots and transported to the leaves where it is reduced to nitrite in the. The main objective of this research was to investigate stimulatory effects of sodium nitrate, potassium nitrate, ammonia and urea on the production/generation of the nitrate reductase mRNA in Triticum aestivum plants. The pl...
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Thioredoxin plays a crucial role in a wide number of physiological processes, which span from reduction of nucleotides to deoxyriboucleotides to the detoxification from xenobiotics, oxidants and radicals. The redox function of Thioredoxin is critically dependent on the enzyme Thioredoxin NADPH Reductase (TrxR). In view of its indirect involvement in the above mentioned physio/pathological proce...
متن کاملThe purification and some equilibrium properties of the nitrite reductase of the bacterium Wolinella succinogenes.
The bacterium Wolinella succinogenes produces a nitrite reductase enzyme that can be purified to homogeneity in high yield by a combination of detergent extraction, hydroxyapatite chromatography and Mr fractionation. Nitrite reductase activity is found to be present in both a high- and a low-Mr fraction. The high-Mr fraction has been shown to consist of the low-Mr nitrite reductase enzyme assoc...
متن کاملTwo structurally and kinetically distinct forms of Wolinella succinogenes nitrite reductase.
It is shown that the oxidized form of the hexa-haem nitrite reductase of Wolinella succinogenes exists in two structurally and functionally distinct forms, termed 'resting' and 'redox-cycled'. The nitrite reductase as initially isolated, termed 'resting', has five low-spin ferrihaem groups and one high-spin ferrihaem group. The reduction of these haem groups by Na2S2O4 occurs in two kinetically...
متن کاملElectron paramagnetic resonance observations on the cytochrome c-containing nitrous oxide reductase from Wolinella succinogenes.
Nitrous oxide reductase from Wolinella succinogenes, an enzyme containing one heme c and four Cu atoms/subunit of Mr = 88,000, was studied by electron paramagnetic resonance (EPR) at 9.2 GHz from 6 to 80 K. In the oxidized state, low spin ferric cytochrome c was observed with gz = 3.10 and an axial Cu resonance was observed with g parallel = 2.17 and g perpendicular = 2.035. No signals were det...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 2003
ISSN: 0014-5793
DOI: 10.1016/s0014-5793(03)01100-1