8.2: The Light-Dependent Reactions of Photosynthesis
The cytochrome complex, an enzyme composed of two protein complexes, transfers the electrons from the carrier molecule plastoquinone (Pq) to the protein plastocyanin (Pc), thus enabling both the transfer of protons across the thylakoid membrane and …
The assembly, regulation and function of the mitochondrial ... - Nature
2021年10月7日 · Zara, V., Conte, L. & Trumpower, B. L. Evidence that the assembly of the yeast cytochrome bc1 complex involves the formation of a large core structure in the inner mitochondrial membrane.
Cytochrome Complexes - HyperPhysics
A cytochrome complex plays a key part in electron transport associated with the membranes of the thylakoids in the process of photosynthesis. It accepts electrons from Photosystem II through plastoquinone and contributes to proton transport across the membrane.
Biochemistry, Electron Transport Chain - StatPearls - NCBI Bookshelf
2023年9月4日 · Complex III, also known as cytochrome c reductase, is made up of cytochrome b, Rieske subunits (containing two Fe-S clusters), and cytochrome c proteins. A cytochrome is a protein involved in electron transfer that contains a heme group.
Cytochrome Complex - an overview | ScienceDirect Topics
The cytochrome complexes are electron-transferring proteins containing iron porphyrin (heme) groups. The iron atoms undergo reversible changes in valency from the ferrous to the ferric form and vice versa. Each of the reactions at complex I, III, and cytochrome oxidase (complex IV) are associated with the ejection of protons from the ...
Cytochrome Complexes: Evolution, Structures, Energy Transduction, and ...
There is an extensive description of the molecular structures of cytochromes and cytochrome complexes from eukaryotic and prokaryotic sources, bacterial, plant and animal.
Cytochrome Complex - an overview | ScienceDirect Topics
Cytochrome c (cytochrome complex) is a small hemeprotein located in the mitochondrial inner membrane. Under physiological conditions, as a component of the mitochondrial ETC, cytochrome c is involved in oxidative phosphorylation and production of ATP [133].
Electron-Transport Chains and Their Proton Pumps
Two protons are pumped per electron in the cytochrome b-c 1 complex, however, and there is good evidence for a so-called Q-cycle, in which ubiquinone is recycled through the complex in an ordered way that makes this two-for-one transfer possible.
Cytochrome c : functions beyond respiration - Nature
Cytochrome c is one of the mitochondrial proteins that is released into the cytosol when the cell is activated by an apoptotic stimulus. In the cytosol, cytochrome c engages the apoptotic...
Cytochrome Complex - an overview | ScienceDirect Topics
A Cytochrome Complex is defined as a protein complex involved in electron transfer processes within cells. It consists of multiple subunits, such as membrane and cytoplasmic components, and plays a crucial role in transferring electrons between different cellular components.
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