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Protease complex of the mitochondrial inner membrane, consisting of at least two subunits, involved in processing of both nuclear- and mitochondrially-encoded proteins targeted to the intermembrane space. A multi-subunit complex embedded in the mitochondrial inner membrane that mediates insertion of carrier proteins into the inner membrane. A heterotetrameric complex located in the mitochondrial inner membrane that possesses di-trans,poly-cis-decaprenylcistransferase activity; involved in ubiquinone biosynthesis. In S. pombe it is a heterotetramer of Dlp1 and Dps1. A large complex of the mitochondrial outer membrane that mediates transport of proteins into all mitochondrial compartments. The double lipid bilayer enclosing the mitochondrion and separating its contents from the cell cytoplasm; includes the intermembrane space. Site of contact between the inner and outer mitochondrial membrane found in neuronal mitochondria; may play a role in maintaining the structural integrity of the inner and outer boundary membranes. A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration. One of two stalks that connect the catalytic core of the hydrogen-transporting ATP synthase to the mitochondrial membrane-associated F0 proteins; rotates within the catalytic core during catalysis. Loosely bound to one surface of the mitochondrial outer membrane, but not integrated into the hydrophobic region. Loosely bound to one surface of the mitochondrial inner membrane, but not integrated into the hydrophobic region. The lipid bilayer surrounding an organelle. Any constituent part of a mitochondrial membrane, either of the lipid bilayers that surround the mitochondrion and form the mitochondrial envelope. Any of the inward folds of the mitochondrial inner membrane. Their number, extent, and shape differ in mitochondria from different tissues and organisms. They appear to be devices for increasing the surface area of the mitochondrial inner membrane, where the enzymes of electron transport and oxidative phosphorylation are found. Their shape can vary with the respiratory state of the mitochondria. Either of the lipid bilayers that surround the mitochondrion and form the mitochondrial envelope. A protein complex located in the mitochondrial inner membrane that forms part of the mitochondrial respiratory chain. Contains about 10 polypeptide subunits including four redox centers: cytochrome b/b6, cytochrome c1 and an 2Fe-2S cluster. Catalyzes the oxidation of ubiquinol by oxidized cytochrome c1. The peripheral segment of respiratory chain complex I located in the mitochondrion. Respiratory chain complex I is an enzyme of the respiratory chain, consisting of at least 34 polypeptide chains. The electrons of NADH enter the chain at this complex. The complete complex is L-shaped, with a horizontal arm lying in the membrane and a vertical arm that projects into the matrix. The mitochondrial membrane segment of respiratory chain complex I. Respiratory chain complex I is an enzyme of the respiratory chain, consisting of at least 34 polypeptide chains. The electrons of NADH enter the chain at this complex. The complete complex is L-shaped, with a horizontal arm lying in the membrane and a vertical arm that projects into the matrix. A protein complex located in the mitochondrial inner membrane that forms part of the mitochondrial respiratory chain. Contains the 13 polypeptide subunits of cytochrome c oxidase, including cytochrome a and cytochrome a3. Catalyzes the oxidation of reduced cytochrome c by dioxygen (O2). The hexamer, comprising three alpha and three beta subunits, that possesses the catalytic activity of the mitochondrial hydrogen-transporting ATP synthase. A protein complex that links the endoplasmic reticulum with mitochondria and may have a role in promoting exchange of calcium and phospholipids between the two organelles. The complex is also associated with actively replicating mitochondrial DNA nucleoids, and may further coordinate mitochondrial genome replication and membrane growth. A proton-transporting ATP synthase complex found in the mitochondrial membrane. The protein transport machinery of the mitochondrial inner membrane that contains three essential Tim proteins: Tim17 and Tim23 are thought to build a preprotein translocation channel while Tim44 interacts transiently with the matrix heat-shock protein Hsp70 to form an ATP-driven import motor. Sites of close apposition of the inner and outer mitochondrial membrane. Protease complex of the mitochondrial inner membrane that is involved in mitochondrial protein turnover and in processing of proteins imported into mitochondria. Any constituent part of the cytoplasm, all of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. Protease complex of the mitochondrial inner membrane whose catalytic residues lie on the intermembrane space side of the inner membrane; involved in mitochondrial protein turnover. Contains a subunit belonging to the AAA family of ATP-dependent metalloproteases. Protein complex located on the matrix side of the mitochondrial inner membrane and associated with the presequence translocase complex; hydrolyzes ATP to provide the force to drive import of proteins into the mitochondrial matrix. The protein complexes that form the mitochondrial electron transport system (the respiratory chain), associated with the inner mitochondrial membrane. The respiratory chain complexes transfer electrons from an electron donor to an electron acceptor and are associated with a proton pump to create a transmembrane electrochemical gradient. A protein complex located in the mitochondrial inner membrane that forms part of the mitochondrial respiratory chain. It contains about 25 different polypeptide subunits, including NADH dehydrogenase (ubiquinone), flavin mononucleotide and several different iron-sulfur clusters containing non-heme iron. The iron undergoes oxidation-reduction between Fe(II) and Fe(III), and catalyzes proton translocation linked to the oxidation of NADH by ubiquinone. Double layer of lipid molecules that encloses all cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins. Located such that some or all of the gene product itself penetrates at least one phospholipid bilayer of a mitochondrial membrane. May also refer to the state of being buried in the bilayer with no exposure outside the bilayer. A protein complex located in the mitochondrial inner membrane that forms part of the mitochondrial respiratory chain. Contains the four polypeptide subunits of succinate dehydrogenase, flavin-adenine dinucleotide and iron-sulfur. Catalyzes the oxidation of succinate by ubiquinone. Connects the TCA cycle with the respiratory chain. A large complex of the mitochondrial outer membrane that mediates sorting of some imported proteins to the outer membrane and their assembly in the membrane; functions after import of incoming proteins by the mitochondrial outer membrane translocase complex. Located in the mitochondrial inner membrane such that some covalently attached portion of the gene product, for example part of a peptide sequence or some other covalently attached moiety such as a GPI anchor, spans or is embedded in one or both leaflets of the membrane. Any constituent part of a cell, the basic structural and functional unit of all organisms. A constituent part of an intracellular organelle, an organized structure of distinctive morphology and function, occurring within the cell. Includes constituent parts of the nucleus, mitochondria, plastids, vacuoles, vesicles, ribosomes and the cytoskeleton but excludes the plasma membrane. Any constituent part of a mitochondrion, a semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration. One of two stalks that connect the catalytic core of the hydrogen-transporting ATP synthase to the mitochondrial membrane-associated F0 proteins; is thought to prevent futile rotation of the catalytic core. Located in the mitochondrial outer membrane such that some covalently attached portion of the gene product, for example part of a peptide sequence or some other covalently attached moiety such as a GPI anchor, spans or is embedded in one or both leaflets of the membrane. All non-F1 subunits of the mitochondrial hydrogen-transporting ATP synthase, including integral and peripheral mitochondrial inner membrane proteins. The catalytic sector of the mitochondrial hydrogen-transporting ATP synthase; it comprises the catalytic core and central stalk, and is peripherally associated with the mitochondrial inner membrane when the entire ATP synthase is assembled. Any constituent part of a membrane, a double layer of lipid molecules that encloses all cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins. The external (cytoplasmic face) of the mitochondrial outer membrane.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: mitochondrial membrane part
Acc: GO:0044455
Aspect: Cellular Component
Desc: Any constituent part of a mitochondrial membrane, either of the lipid bilayers that surround the mitochondrion and form the mitochondrial envelope.
Proteins in PDR annotated with:
   This term: 0
   Term or descendants: 712 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0044455 - mitochondrial membrane part (interactive image map)
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