| mitobronitol | <chemical> 1,6-dibromo-1,6-dideoxy-d-mannitol. Brominated analog of mannitol which is an antineoplastic agent appearing to act as an alkylating agent. Pharmacological action: antineoplastic agent, alkylating. Chemical name: D-Mannitol, 1,6-dibromo-1,6-dideoxy- (12 Dec 1998) |
|---|---|
| mitochondria | <cell biology> A small intracellular organelle which is responsible for energy production and cellular respiration. See: cytochrome. (13 Nov 1997) |
| mitochondria, heart | The mitochondria of the myocardium. (12 Dec 1998) |
| mitochondria, liver | Mitochondria in hepatocytes. As in all mitochondria, there are an outer membrane and an inner membrane, together creating two separate mitochondrial compartments: the internal matrix space and a much narrower intermembrane space. In the liver mitochondrion, an estimated 67% of the total mitochondrial proteins is located in the matrix. (12 Dec 1998) |
| mitochondria, muscle | Mitochondria of skeletal and smooth muscle. It does not include myocardial mitochondria for which mitochondria, heart is available. (12 Dec 1998) |
| mitochondrial | Referring to mitochondria. (12 Dec 1998) |
| mitochondrial chromosome | The DNA component of mitochondria, the chief function of which is synthesis of adenosine triphosphate and the management of cellular energy; the chromosome contains some 16,000 base pairs arranged in a circle. The inheritance is matrilineal, and the mutation rate is unusually high; since each cell contains thousands of copies a mutant form may assume an almost continuous gradation as in a galtonian process. Most of the mutations known have their impact on the respiratory chain. (05 Mar 2000) |
| mitochondrial disease | <disease, neurology> An illnesse, frequently neurological, which can be ascribed to defects in mitochondrial function. If the defect is in the mitochondrial rather than the nuclear genome unusual patterns of inheritance can be observed. (18 Nov 1997) |
| mitochondrial encephalomyopathies | Brain diseases associated with disease of the muscles, accompanied by morphological changes in the muscle mitochondria and their metabolism. The mitochondrial encephalopathies are often multisystemic and vary considerably in age at onset, distribution of weakness, severity, and course. Mitochondrial cytochrome c oxidase deficiency appears to be implicated and often several mitochondrial enzymes are affected in the same patient. The brain lesions can be said to be clinical and morphological expressions of a mitochondrial defect. (12 Dec 1998) |
| mitochondrial gene | A functioning gene located not in the nucleus of a cell but in the mitochondrial chromosome. (05 Mar 2000) |
| mitochondrial genome | All of the DNA in the mitochondrial chromosome. (12 Dec 1998) |
| mitochondrial inheritance | The inheritance of a trait encoded in the mitochondrial genome. Because of the oddities of mitochondria, mitochondrial inheritance does not obey the classic rules of genetics. Persons with a mitochondrial disease may be male or female but they are always related in the maternal line and no male with the disease can transmit it to his children. (12 Dec 1998) |
| mitochondrial intermediate peptidase | <enzyme> Removes the octapeptide from the amino terminus of the intermediate protein processed from the protein precursor of certain mitochondrial proteins by the mitochondrial processing peptidase; smip from schizophyllum commune; rmip from rat; ymip from saccharomyces cerevisiae Registry number: EC 3.4.24.59 Synonym: mip peptidase, smip peptidase, rmip peptidase, ymip peptidase (26 Jun 1999) |
| mitochondrial matrix | The substance occupying the space enclosed by the inner membrane of a mitochondrion; it contains enzymes, filaments of DNA, ribosomes, granules, and inclusions of protein crystals, glycogen, and lipid. Synonym: mitochondrial matrix. (05 Mar 2000) |
| mitochondrial membrane | The double biomembrane surrounding the mitochondrion. (05 Mar 2000) |