Environmental Engineering Reference
In-Depth Information
taBle 25.1
relation between catalytic reactions of inorganic cores of enzymes in vivo or related inorganic compounds in vitro
elements
Oxide or sulfide
enzyme
related minerals
enzymatic reaction(s)
reaction(s)
reference
Ca, Mn, and O
Calcium and manganese
oxide
Water-oxidizing complex
in Photosystem II
Birnessite, Hollandite
2H 2 O → 4H + + O 2 + 4e
2H 2 O → 4H + + O 2 + 4e
[40-43]
Fe and S
Iron sulfide
Nitrogenase
Pyrite
N 2 + 6e + 6H + → 2NH 3
N 2 + 6e + 6H + → 2NH 3
[44]
Fe and O
Iron oxide
Hydrolyzing phosphoester
Hematite
Hydrolyzing phosphoester
Hydrolyzing phosphoester
[45, 46]
Fe and S
Iron sulfide
Hydrogenase
Pyrite
2H + + 2e → H 2
2H + + 2e → H 2
[47]
Cu and S
Nickel and iron and sulfide
Nitrous oxide reductase
or oxidase
Chalcocite (Cu 2 S); covellite CuS
N 2 O + 2H + + 2e → N 2 + H 2 O
reduction of nitrogen oxides
compounds
[48]
Mo and S
Molybdenum sulfide
Hydrogenase
Molybdenite
2H + + 2e ↔ H 2
2H + + 2e ↔ H 2
[49]
Mo and S
Molybdenum sulfide
DMSO reductase
Molybdenite
DMSO + 2H + → DMS + H 2 O
SO 2 → S
[50]
W and S
Tangestan sulfide
DMSO reductase
Tungstenite
DMSO + 2H + → DMS + H 2 O
SO 2 → S
[50]
Ni, Fe, and S
Nickel and iron and sulfide
Hydrogenase and
dehydrogenase
Pentlandite
2H + + 2e ↔ H 2
2H + + 2e ↔ H 2
[51, 52]
V, S
Vanadium and sulfide
Nitrogenase/hydrogenase
Colimaite
N 2 + 6e + 6H + → 2NH 3
2H + + 2e → H 2
[53, 54]
2H + + 2e → H 2
Mo, Fe, and S
Molybdenum iron sulfide
Nitrogenase/hydrogenase
Femolite
N 2 + 6e + 6H + → 2NH 3
2H + + 2e → H 2
[55, 56]
2H + + 2e → H 2
 
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