Bacterial cytochromes c biogenesis.
نویسندگان
چکیده
منابع مشابه
Biogenesis of mitochondrial c-type cytochromes.
Cytochromes c and c1 are essential components of the mitochondrial respiratory chain. In both cytochromes the heme group is covalently linked to the polypeptide chain via thioether bridges. The location of the two cytochromes is in the intermembrane space; cytochrome c is loosely attached to the surface of the inner mitochondrial membrane, whereas cytochrome c1 is firmly anchored to the inner m...
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In mitochondria, two mono heme c-type cytochromes are essential electron shuttles of the respiratory chain. They are characterized by the covalent attachment of their heme C to a CXXCH motif in the apoproteins. This post-translational modification occurs in the intermembrane space compartment. Dedicated assembly pathways have evolved to achieve this chemical reaction that requires a strict redu...
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Biogenesis of respiratory cytochromes is defined as consisting of the posttranslational processes that are necessary to assemble apoprotein, heme, and sometimes additional cofactors into mature enzyme complexes with electron transfer functions. Different biochemical reactions take place during maturation: (i) targeting of the apoprotein to or through the cytoplasmic membrane to its subcellular ...
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Cytochrome c oxidase is the key player in cellular respiration, catalysing the reduction of molecular oxygen to water via its internal heme and copper redox centres. Biogenesis of the enzyme is a complex process involving up to 30 accessory proteins in higher eukaryotes. Factors directly involved in cofactor recruitment and insertion into the two core structural subunits I and II are also prese...
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The chemolithoautotrophic Gram-negative bacterium Acidithiobacillus ferrooxidans is versatile and can grow on a number of electron donors and acceptors. In the A. ferrooxidans ATCC 23270 genome, computer analysis identified 11 genes encoding putative cytochromes c. At least eight putative cytochromes c were differentiated on gels in ATCC 33020 cells grown on ferrous iron or sulfur. All these cy...
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ژورنال
عنوان ژورنال: Genes & Development
سال: 1992
ISSN: 0890-9369
DOI: 10.1101/gad.6.2.268