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Electron transport chain enzyme activity in patients' muscle specimens.
| ETC complexes | Activity (nmol/min/mg) | ||
|---|---|---|---|
| Controls | P2 | P3 | |
| Complex I NASH-FeCN reductase |
449.6 | 508.4 | 422.7 |
| Complex II Succinate dehydrogenase |
162.8 | 189.6 | 443.7 |
| Complex II + III Succinate-cytochrome c reductase |
485.4 | 509.8 | 638.8 |
| Complex IV Cytochrome c oxidase |
377.0 | 254.4 | 192.2 |
| Complex V ATP synthase | 11357.6 | 13154.7 | 6310.4 |
| Citrate synthase | 1459.0 | 1678.4 | 1931.8 |
