| phosphotransferases | <enzyme> A rather large group of enzymes that transfers a phosphate group from a donor to an acceptor. They are important in metabolism and comprise not only those transferring phosphate but also diphosphate, nucleotidyl residues, and others. These have also been subdivided according to the acceptor group. Registry number: EC 2.7 Alcohol group acceptor: A group of enzymes that transfers a phosphate group onto an alcohol group acceptor. Registry number: EC 2.7.1 Carboxyl group acceptor: A class of enzymes that transfers phosphate groups and has a carboxyl group as an acceptor. Registry number: EC 2.7.2 Nitrogenous group acceptor: A group of enzymes that catalyses the transfer of a phosphate group onto a nitrogenous group acceptor. Registry number: EC 2.7.3 Paired acceptors: A group of enzymes that transfers two phosphate groups from a donor such as ATP to two different acceptors. Registry number: EC 2.7.9 Phosphate group acceptor: A group of enzymes that catalyses the transfer of a phosphate group onto a phosphate group acceptor. Registry number: EC 2.7.4 Phosphomutases: A group of enzymes that catalyze an intramolecular transfer of a phosphate group. It has been shown in some cases that the enzyme has a functional phosphate group, which can act as the donor. These were previously listed under phosphotransferases (ec 2.7.-). Registry number: EC 5.4.2 (04 Jul 1999) |
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| phosphotriose isomerase | <biochemistry, enzyme> An isomerizing enzyme that during glycolysis, catalyses the reversible interconversion of d-glyceraldehyde 3-phosphate to dihydroxyacetone phosphate and viceversa. A reaction of importance in glycolysis and gluconeogenesis. A deficiency in humans causes congenital nonspherocytic haemolytic anaemia and severe neurological deficits. Synonym: phosphotriose isomerase. Chemical name: D-Glyceraldehyde-3-phosphate ketol isomerase Registry number: EC 5.3.1.1 (12 Dec 1998) |
| phosphotungstic acid | <chemical> Tungsten hydroxide oxide phosphate. A white or slightly yellowish-green, slightly efflorescent crystal or crystalline powder. It is used as a reagent for alkaloids and many other nitrogen bases, for phenols, albumin, peptone, amino acids, uric acid, urea, blood, and carbohydrates. Chemical name: Tungsten hydroxide oxide phosphate (12 Dec 1998) |
| phosphotungstic acid haematoxylin | A stain with broad application in cytology and histology; nuclei, mitochrondria, fibrin, neuroglial fibrils, and cross-striations of skeletal and cardiac muscle stain blue; cartilage ground substance, bone reticulum, and elastin appear in shades of yellow-orange and brownish red; also useful for demonstrating abnormal or diseased astrocytes, often in combination with periodic acid-Schiff stain and Luxol fast blue. Synonym: Mallory's phosphotungstic acid haematoxylin stain. (05 Mar 2000) |
| phosphotungstic acid stain | <technique> The first general stain used for electron microscopy; a selective stain for extracellular components such as elastin, collagen, and basement membrane mucopolysaccharides; it can be followed by uranyl acetate or lead. Synonym: PTA stain. (05 Mar 2000) |
| phosphotyrosine | <biochemistry> Strictly speaking, tyrosine phosphate, but normally refers to the phosphate ester of a protein tyrosine residue. Present in very small amounts in tissues, but believed to be important in systems that regulate growth control and is therefore of interest in studies of malignancy. The src gene product (pp60(src)) was one of the first kinases shown to phosphorylate at a tyrosine residue. (18 Nov 1997) |
| phosphovitin | <chemical> An egg yolk phosphoglycoprotein which contains about 90% of the yolk protein phosphorus. It is synthesised in the liver of the hen and transferred to the developing oocyte, where it is bound to lipoproteins within the yolk granules. Chemical name: Phosvitins (12 Dec 1998) |
| phosphuresis | Excretion of excessive amounts of phosphate in the urine. Origin: phospho-+ G. Ouresis, urination (05 Mar 2000) |
| phosphuret | <chemistry> A phosphide. Source: Websters Dictionary (01 Mar 1998) |
| phosphureted | <chemistry> Impregnated, or combined, with phosphorus. Alternative forms: phosphuretted] Phosphureted hydrogen. <chemistry> See Phosphine. Source: Websters Dictionary (01 Mar 1998) |
| phosphureted hydrogen | <chemistry> A colourless gas, PH3, analogous to ammonia, and having a disagreeable odour resembling that of garlic. Synonym: hydrogen phosphide, and formerly, phosphureted hydrogen. It is the most important compound of phosphorus and hydrogen, and is produced by the action of caustic potash on phosphorus. It is spontaneously inflammable, owing to impurities, and in burning produces peculiar vortical rings of smoke. Source: Websters Dictionary (01 Mar 1998) |
| phosphuria | <nephrology> The excessive discharge of phosphates in the urine. Origin: NL. See Phosphate, and Urine. (01 Mar 1998) |
| phosvitin | <chemical> An egg yolk phosphoglycoprotein which contains about 90% of the yolk protein phosphorus. It is synthesised in the liver of the hen and transferred to the developing oocyte, where it is bound to lipoproteins within the yolk granules. Chemical name: Phosvitins (12 Dec 1998) |
Synonyms : Choline Phosphate, Phosphocholine, Chloride, Choline Phosphate, Chloride, Phosphorylcholine, Phosphate Chloride, Choline, Phosphate, Choline
Synonyms : Phosphorylserine, Seryl Phosphate, Phosphate, Serine, Phosphate, Seryl
Synonyms : Phosphate, Threonine
Synonyms : Kinase, ATP Phosphotransferases
Synonyms :
| phospholipid |
A lipid or glyceride that contains a phosphate group. The phosphate group imparts a polar side to the molecule, while the lipid end remains relatively non-polar. Phospholipids are the main form of lipid in cell membranes.
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| phosphorous |
An important trace element in the marine tank. Phosphorous is an element that helps composed ATP (adenosine triphosphate) which is a building block for genetic material, specifically DNA (deoxyribonucleic acid).
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| phosphorous |
One of the nine macronutrients. It is a component of nucleic acid (genetic material), of ADP and ATP (which are vehicles of energy transfer in and amongst cells), and of several coenzymes (which activate biochemical processes). It is responsible for root development, as well as flower and fruit formation. Phosphorus deficiencies are difficult to identify, but you may see a reddening or general darkening of the foliage. Chicken manure is phosphorus rich, more so than other manures. ...
Ãâó: www.earthandtable.com/glossary/plants/essentialele...
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| phosphate |
Phosphate --in the form of rock phosphate-- is a dry organic fertilizer used to boost phosphorous levels in the soil. Rock phosphate is slow to dissolve in water, so adding it will benefit the soil over a period of years. The phosphate found in many synthetic fertilizers is usually from rock phosphate treated with sulfuric acid to make it more soluble and thus more readily available to plants (called superphosphate).
Ãâó: www.earthandtable.com/glossary/soil/amendments.htm...
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| phosphate |
a substance (called an electrolyte) that carries an electrical charge when dissolved in blood. Most of the body's phosphate (about 85%) is found in bones. The rest of it is stored in tissues throughout the body. (Electrolytes are minerals found naturally in the body. They include potassium, calcium, sodium, and magnesium. ...
Ãâó: www.opendoorclinic.org/hivglossary.htm
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