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Depiction of mitochondrial membranes. [1] Mitochondrial membrane transport proteins, also known as mitochondrial carrier proteins, are proteins which exist in the membranes of mitochondria. They serve to transport [2] molecules and other factors, such as ions, into or out of the organelles. Mitochondria contain both an inner and outer membrane ...
Many MC proteins preferentially catalyze the exchange of one solute for another ().A variety of these substrate carrier proteins, which are involved in energy transfer, have been found in the inner membranes of mitochondria and other eukaryotic organelles such as the peroxisome and facilitate the transport of inorganic ions, nucleotides, amino acids, keto acids and cofactors across the membrane.
The tricarboxylate transport protein is located within the inner mitochondria membrane. It provides a link between the mitochondrial matrix and cytosol by transporting citrate through the impermeable inner mitochondrial membrane in exchange for malate from the cytosol.
Phosphate carrier protein, mitochondrial is a protein that in humans is encoded by the SLC25A3 gene. [5] [6] The encoded protein is a transmembrane protein located in the mitochondrial inner membrane and catalyzes the transport of phosphate ions across it for the purpose of oxidative phosphorylation.
The TIM/TOM complex is a protein complex in cellular biochemistry which translocates proteins produced from nuclear DNA through the mitochondrial membrane for use in oxidative phosphorylation. In enzymology , the complex is described as an mitochondrial protein-transporting ATPase ( EC 7.4.2.3 ), or more systematically ATP phosphohydrolase ...
An electron transport chain (ETC [1]) is a series of protein complexes and other molecules which transfer electrons from electron donors to electron acceptors via redox reactions (both reduction and oxidation occurring simultaneously) and couples this electron transfer with the transfer of protons (H + ions) across a membrane.
The carrier preprotein is then inserted into the inner mitochondrial membrane in a potential-dependent fashion. [10] The membrane potential is necessary for both insertion of the precursor into the carrier translocase and lateral release of the protein into the lipid phase of the inner mitochondrial membrane, which completes protein translocation.
Proteins targeted to the outer membrane also contain internal targeting signals, not all of which have been identified, and include proteins that take on a β-barrel structure, [7] such as Tom40. Some proteins however, that are targeted to the outer mitochondrial membrane contain a hydrophobic tail domain that anchors the protein to the ...