| phosphodiester hydrolases | Enzymes (EC sub-subclass 3.1.4) cleaving phosphodiester bonds, such as those in cAMP or between nucleotides in nucleic acids, liberating smaller poly-or oligonucleotide units or mononucleotides but not inorganic phosphate. Synonym: phosphodiester hydrolases. (05 Mar 2000) |
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| phosphodiester linkage | <biochemistry> A chemical linkage in which two alcohols are esterically boundto a bridging molecule of phosphoric acid. (31 Dec 1997) |
| phosphodiesterase | <enzyme> An enzyme that cleaves phosphodiesters to give a phosphomonoester and a free hydroxyl group. Examples include RNase, DNase, phospholipases C and D and the enzymes that convert cyclic nucleotides to the monoester forms. In casual usage the cAMP phosphodiesterase is usually meant. (18 Nov 1997) |
| phosphodiesterase inhibitors | Compounds which inhibit or antagonise the biosynthesis or actions of phosphodiesterases. (12 Dec 1998) |
| phosphodiesterase-phosphomonoesterase | <enzyme> From fusarium moniliforme; hydrolyzes both phosphodiesters and phosphomonoesters Registry number: EC 3.1.- Synonym: pdmase (26 Jun 1999) |
| phosphodiesterases | Enzymes (EC sub-subclass 3.1.4) cleaving phosphodiester bonds, such as those in cAMP or between nucleotides in nucleic acids, liberating smaller poly-or oligonucleotide units or mononucleotides but not inorganic phosphate. Synonym: phosphodiester hydrolases. (05 Mar 2000) |
| phosphodimethylethanolamine N-methyltransferase | <enzyme> Final step in the sequential methylation of phosphoethanolamine to phosphocholine Registry number: EC 2.1.1- Synonym: pme2etn methyltransferase (26 Jun 1999) |
| phosphodismutase | One of a number of enzymes (mutases) (EC sub-subclass 5.4.2) that apparently catalyze intramolecular transfer because the donor is regenerated (e.g., phosphoglyceromutase, phosphoglucomutase). Synonym: phosphodismutase. (05 Mar 2000) |
| phosphoenolpyruvate | <biochemistry> An important metabolic intermediate. The enol (less stable) form of pyruvic acid is trapped as its phosphate ester, giving the molecule a high phosphate transfer potential. Formed from 2 phosphoglycerate by the action of enolase. (31 Dec 1997) |
| phosphoenolpyruvate carboxykinase | phosphoenolpyruvic acid carboxykinase |
| phosphoenolpyruvate carboxykinase (ATP) | <enzyme> An enzyme of the lyase class that catalyses the conversion of ATP and oxaloacetate to ADP, phosphoenolpyruvate, and carbon dioxide. The enzyme is found in some bacteria, yeast, and trypanosoma, and is important for the photosynthetic assimilation of carbon dioxide in some plants. Chemical name: ATP:oxaloacetate carboxy-lyase (transphosphorylating) Registry number: EC 4.1.1.49 (12 Dec 1998) |
| phosphoenolpyruvate carboxykinase (GTP) | <enzyme> An enzyme of the lyase class that catalyses the conversion of GTP and oxaloacetate to GDP, phosphoenolpyruvate, and carbon dioxide. This reaction is part of gluconeogenesis in the liver. The enzyme occurs in both the mitochondria and cytosol of mammalian liver. Chemical name: GTP:oxaloacetate carboxy-lyase (transphosphorylating) Registry number: EC 4.1.1.32 (12 Dec 1998) |
| phosphoenolpyruvate carboxylase | <enzyme> An enzyme with high affinity for carbon dioxide. It catalyses irreversibly the formation of oxaloacetate from phosphoenolpyruvate and carbon dioxide. This fixation of carbon dioxide in several bacteria and some plants is the first step in the biosynthesis of glucose. Chemical name: Orthophosphate:oxaloacetate carboxy-lyase (phosphorylating) Registry number: EC 4.1.1.31 (12 Dec 1998) |
| phosphoenolpyruvate carboxylase kinase | <enzyme> From bryophyllum fedtschenkoi plant and maise; phosphorylates phosphoenolpyruvate carboxylase on serine near the n-terminus; activity controlled by circadian rhythms Registry number: EC 2.7.10.- Synonym: pep carboxylase kinase, pepc kinase (26 Jun 1999) |
| phosphoenolpyruvate mutase | <enzyme> Isolated from t pyriformis; forms a carbon-phosphorus bond in the transformation of phosphoenolpyruvate to phosphonopyruvate Registry number: EC 5.4.2.9 Synonym: phosphoenolpyruvate phosphomutase (26 Jun 1999) |
Synonyms :
Synonyms : ATP-Dependent Phosphoenolpyruvate Carboxykinase, T. cruzi PEPCK, ATP Dependent Phosphoenolpyruvate Carboxykinase, Carboxykinase, ATP-Dependent Phosphoenolpyruvate, PEPCK, T. cruzi, PEPCK, Trypanosoma cruzi, Phosphoenolpyruvate Carboxykinase, ATP-Dependent
Synonyms : GTP-Dependent Phosphoenolpyruvate Carboxykinase, Carboxykinase, GTP-Dependent Phosphoenolpyruvate, GTP Dependent Phosphoenolpyruvate Carboxykinase, Phosphoenolpyruvate Carboxykinase, GTP-Dependent
Synonyms : Carboxylase, Phosphoenolpyruvate
Synonyms : Phosphoenolpyruvate-Glycose Phosphotransferase System, Hexose Phosphotransferases, Phosphoenolpyruvate, Phosphoenolpyruvate Glycose Phosphotransferase System, Phosphotransferase System, Phosphoenolpyruvate-Glycose
| phosphate |
Although an important trace element in the marine tank, excessive quantities can result in rampant algae growth! Control of phosphates is critical to maintaining a successful reef aquarium. Essential in the chain of formation of DNA, life would be impossible without limited controlled quantities. Incidently introduced through, some foodstuffs, untreated tap water, & some sources of carbon.
출처: members.aol.com/sierram/sierram3.htm
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| phosphodiester bond |
A bond between a two sugar groups and a phosphate group; such bonds form the sugar-phosphate-sugar backbone of DNA and RNA. A diester bond (between phosphoric acid and two sugar molecules) linking two nucleotides together to form the nucleotide polymers DNA and RNA.
출처: helios.bto.ed.ac.uk/bto/glossary/p.htm
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| phosphor- |
The special electrofluorescent coating used on the inside of a CRT screen that glows for a few milliseconds when struck by an electron beam. Because the illumination is so brief, it must be refreshed constantly to maintain an image.
출처: www.angelfire.com/ny3/diGi8tech/PGlossary.html
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| phosphor |
The special electrofluorescent coating used on the inside of a CRT screen that glows for a few milliseconds when struck by an electron beam. Because the illumination is so brief, it must be refreshed constantly to maintain an image.
출처: www.angelfire.com/ny3/diGi8tech/PGlossary.html
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| phosphorescent |
lucid; emitting light in the dark.
출처: www.biology.lsu.edu/heydrjay/ThomasSay/terms.html
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