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2 - IBMC

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II. Les navettes de transport du NADH et du FADH 2<br />

cytoplasmique<br />

1. La navette glycérol-phosphate<br />

CYTOSOL<br />

MATRICE<br />

L-Glycérol-P<br />

P-OCH 2<br />

-CHOH-CH 2<br />

OH<br />

L-Glycérol-P<br />

P-OCH 2 -CHOH-CH 2 OH<br />

QH 2<br />

O 2<br />

2 ATP<br />

NAD +<br />

c Glycérol-<br />

P DH<br />

NADH<br />

+ H +<br />

FAD<br />

FADH 2<br />

Q<br />

DHAP<br />

P-OCH 2<br />

-CO-CH 2<br />

OH<br />

DHAP<br />

P-OCH 2 -CO-CH 2 OH<br />

mGlycérol-P DH<br />

Bilan : NADH + H + + E-FAD NAD + + E-FADH 2<br />

Membrane<br />

cytoplasmique externemitochondriale<br />

Membrane<br />

cytoplasmique interne<br />

mitochondriale

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