La Phosphorylation oxydative - IBMC
La Phosphorylation oxydative - IBMC
La Phosphorylation oxydative - IBMC
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NADH FMN Fe-S Q Fe-S<br />
Cyt b<br />
Succinate FAD Fe-S<br />
-0,4<br />
NADH<br />
Complexe I<br />
-0,2<br />
NAD +<br />
NADH-ubiquinone<br />
réductase<br />
Cyt c 1 Cyt c Cyt a Cyt a 3 O 2<br />
Trajet<br />
des<br />
électrons<br />
ΔG°’<br />
(kcal / mol)<br />
50<br />
40<br />
0<br />
0,2<br />
Succinate<br />
Fumarate<br />
Complexe II<br />
Q<br />
Complexe III<br />
30<br />
0,4<br />
Succinate-ubiquinone<br />
réductase<br />
Cyt c<br />
Complexe IV<br />
20<br />
0,6<br />
Ubiquinol-cytochrome c<br />
réductase<br />
Cytochrome c<br />
oxydase<br />
1/2 O 2<br />
+ 2 H +<br />
10<br />
E°’ (V)<br />
H 2<br />
O