منابع مشابه
Redox-Linked Conformation Change and Electron Transfer Between Monoheme C-Type Cytochromes and Oxides
Electron transfer between redox active proteins and mineral oxides is important in a variety of natural as well as technological processes, including electron transfer from dissimilatory metal-reducing bacteria to minerals. One of the pathways that could trigger electron transfer between proteins and minerals is redox-linked conformation change. We present electrochemical evidence that mitochon...
متن کاملEffects of protein-protein and protein-lipid interactions on heme site conformation in the mitochondrial b cytochromes.
Removal of lipid from detergent-solubilized succinate cytochrome c reductase by a mild method leads to a series of changes in the optical and EPR spectra of the b cytochromes. This culminates in a state that resembles purified b cytochromes from the same source and bisimidazole ferriheme model complexes. Reconstitution of the lipid-depleted complex with phospholipid restores the native spectra ...
متن کاملCytochromes of aquatic fungi.
The cytochrome systems of two classes of aquatic fungi, the Oomycetes and Chytridiomycetes, were studied by means of reduced-minus-oxidized difference spectra at room and at low temperature. At room temperature, all of these fungi have a c-type cytochrome with an absorption maximum at 551 mmu and a b-type cytochrome at 564 mmu. The Oomycetes have a-type cytochromes at 605 mmu, and the Chytridio...
متن کاملCytochromes c of Acidithiobacillus ferrooxidans.
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...
متن کاملThiosulphate oxidation and cytochromes in Thiobacillus X. 1. Fractionation of bacterial extracts and properties of cytochromes.
In a preliminary communication (Trudinger, 1958) the separation of some soluble cytochromes of the autotrophic sulphur bacterium Thiobacillue X was briefly reported. Addition of thiosulphate to intact cells results in the rapid reduction of the cytochromes and the present work was undertaken to attempt to characterize the cytochromes and to obtain some information on the electron-transport chai...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1968
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)93454-x