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Mitochondrial complex I (proton pumping NADH:ubiquinone oxidoreductase) is the largest and most complicated component of the respiratory electron transfer chain. Despite its central role in biological energy conversion the structure and function of this membrane integral multiprotein complex is still poorly understood. Recent insights into the structure of complex I by X-ray crystallography have shown...
2-methyl-1,4-naphtoquinone 1 (vitamin K 3 , menadione) derivatives with different substituents at the 3-position were synthesized to tune their electrochemical properties. The thermodynamic midpoint potential (E 1/2 ) of the naphthoquinone derivatives yielding a semi radical naphthoquinone anion were measured by cyclic voltammetry in the aprotic solvent dimethoxyethane (DME). Using...
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