| LIMM | lethal infantile mitochondrial myopathy |
|---|---|
| MA | malignant arrhythmia; management and administration; mandelic acid; masseter; Master of Arts; matern... |
| MELAS | mitochondrial encephalomyopathy-lactic acidosis- and stroke-like symptoms [syndrome] |
| MEM | macrophage electrophoretic mobility; malic enzyme, mitochondrial; minimal essential medium |
| MEP | maximum expiratory pressure; mean effective pressure; mepiridine; mitochondrial encephalopathy; moto... |
| mt DNA | Mitochondrial DNA |
|---|---|
| MELAS | Mitochondrial Encephalomyopathy with Lactic Acidosis and Stroke-like episodes |
| MELAS | Mitochondrial Encephalomyopathy, Lactic Acidosis, and Stroke-like episodes |
| MPT | Mitochondrial Permeability Transition |
| MBR | Mitochondrial benzodiazepine receptors |
| mitochondrial sheath | The spirally arranged mitochondria in the middle piece of a spermatozoon; may control movement of the tail. (05 Mar 2000) |
|---|---|
| mitochondrial swelling | Increase in volume of mitochondria due to an influx of fluid; it occurs in hypotonic solutions due to osmotic pressure and in isotonic solutions as a result of altered permeability of the membranes of respiring mitochondria. (12 Dec 1998) |
| disease, mitochondrial | Mutations (changes) in the mitochondrial chromosome are responsible for a number of disorders including an eye disease (Leber's hereditary optic atrophy), a type of epilepsy (called MERRF which stands for Myoclonus Epilepsy with Ragged Red Fibres), and a cause of dementia (called MELAS for Mitochondrial Encephalopathy, Lactic Acidosis and Stroke-like episodes). All mitochondrial diseases were entirely enigmatic before it was discovered that they were due to mutations not in regular chromosomes but the mitochondrial chromosome. (12 Dec 1998) |
| DNA, mitochondrial | Double-stranded DNA of mitochondria. In eukaryotes, the mitochondrial genome is circular and codes for ribosomal rnas, transfer rnas, and about 10 proteins. (12 Dec 1998) |
| arsenite(antimonate)-stimulated ATPase | <enzyme> Anion pump with 2 polypeptide components (arsa and arsb); arsa is the catalytic subunit of an oxyanion-translocating atpase; arsb protein has been localised in the inner membrane of E coli; arsc protein required for arsenate resistance; reduces arsenate to arsenite Registry number: EC 3.6.1.- Synonym: arsa protein, arsb protein, ars gene product, arsc protein, anion-translocating atpase, arsenical resistance pump, oxyanion pump, arsenate reductase (26 Jun 1999) |
| ATPase | <enzyme> An enzyme that hydrolyzes ATP into ADP and phosphate. (09 Oct 1997) |
| bicarbonate ATPase | <enzyme> Anion sensitive Registry number: EC 3.6.1.- Synonym: hco(3)-atpase, atpase, bicarbonate, cl atpase, atpase, chloride, chloride-bicarbonate atpase, anion-sensitive atpase (26 Jun 1999) |
| cadmium translocating ATPase | <enzyme> Cadmium-efflux atpase; e1,e2-translocating atpase is a generic name which includes all cation-transport atpases; do not confuse with lysine decarboxylase cada Registry number: EC 3.6.1.- Synonym: cada atpase, cd-e1,e2-translocating atpase (26 Jun 1999) |
| calcium ATPase | <enzyme> Usually used of the calcium pumping ATPase present in high concentration as an integral membrane protein of the sarcoplasmic reticulum of muscle. This pump lowers the cytoplasmic calcium level and causes contraction to stop. Normal function of the pump seems to require a local phospholipid environment from which cholesterol is excluded. (18 Nov 1997) |
| calcium magnesium-atpase | <enzyme> An enzyme that catalyses the hydrolysis of ATP and is activated by millimolar concentrations of either calcium or magnesium. Unlike calcium-transporting atpase it does not require the second divalent cation for its activity, and is not sensitive to orthovanadate. Registry number: EC 3.6.1.- (12 Dec 1998) |
| calcium-transporting atpase | <enzyme> An enzyme found in the sarcoplasmic reticulum vesicle membrane. During the relaxation of skeletal muscles and muscle rich in mitochondria, this enzyme catalyses the active transport of calcium into the sarcoplasmic reticulum vesicles from the sarcoplasm. It requires micromolar concentrations of calcium and utilises mgatp as a substrate. Chemical name: ATP phosphohydrolase (Calcium-transporting) Registry number: EC 3.6.1.38 (12 Dec 1998) |
| vacuolar ATPase | <enzyme> From eukaryotic endomembrane systems, including vacuoles, lysosomes, golgi apparatus, chromaffin granules and coated vesicles. One of three major classes of ion transport ATPase, characterised by a multi subunit structure and a lack of a phosphorylated intermediate. Found in archaebacteria but not eubacteria, in the intracellular acidic vacuoles and in some proton pumping epithelia (e.g. Intercalated cells of kidney). A complex enzyme encoded by several genes, involved in ion translocation but does not act via phosphorylated enzyme intermediate See: P-type ATPase. Registry number: EC 3.6.1.- Synonym: atpase, v-type, atpase, vacuolar, vacuolar atpase, v-atpase, vacuolar h+-atpase, vacuolar membrane h(+)-atpase, vha55 gene product, vma16 gene product (26 Jun 1999) |
| vacuolar calcium ATPase | <enzyme> Isolated from saccharomyces cerevisiae; genbank u36603 Registry number: EC 3.6.1.- Synonym: h(+)-ca(2+)-atpase, vacuolar (26 Jun 1999) |
| Rad3 ATPase-DNA helicase | <enzyme> Can unwind duplex regions as short as 11 base pairs in a partially duplex circular DNA substrate; on partially duplex linear substrates, the enzyme has a strict 5'--3' polarity with respect to the single strand to which it binds; nicked circular DNA is not utilised; from saccharomyces cerevisiae Registry number: EC 3.6.1.- Synonym: rad3 protein (26 Jun 1999) |
| magnesium-bicarbonate ATPase | <enzyme> Aspect of EC 3.6.1.3 Registry number: EC 3.6.1.- Synonym: mg-hco3-atpase, atpase, magnesium-bicarbonate (26 Jun 1999) |