Import of cytochrome c into mitochondria

Nicholson, Donald W. und Neupert, Walter (1989): Import of cytochrome c into mitochondria. Reduction of heme, mediated by NADH and flavin nucleotides, is obligatory for its covalent linkage to apocytochrome c. In: Proceedings of the National Academy of Sciences of the United States of America, Bd. 86, Nr. 12: S. 4340-4344

Abstract

The covalent attachment of heme to apocytochrome c, and therefore the import of cytochrome c into mitochondria, is dependent on both NADH plus a cytosolic cofactor that has been identified to be FMN or FAD. NADH in concert with flavin nucleotides mediates the reduction of heme. Heme in the reduced state is a prerequisite for its covalent attachment to apocytochrome c by the enzyme cytochrome c heme lyase and thus for subsequent translocation of cytochrome c across the outer mitochondrial membrane during import.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Medizin
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 1091-6490