| phosphatidylcholine | <biochemistry> The major phospholipid of most mammalian cell membranes where the 1 acyl residue is normally saturated and the 2 acyl residue unsaturated. Choline is attached to phosphatidic acid by a phosphodiester linkage. Major synthetic route is from diacyl glycerol and CDP choline. Forms monolayers at an air water interface and forms bilayer structures (liposomes) if dispersed in aqueous medium. A zwitterion over a wide pH range. Readily hydrolysed in dilute alkali. (31 Dec 1997) |
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| phosphatidylcholine-ceramide phosphocholine transferase | <enzyme> Cdpcholine is not a donor; imvolved in sphingomyelin synthesis Registry number: EC 2.7.8.- Synonym: pc-cer-pch transferase, sphingomyelin synthase (26 Jun 1999) |
| phosphatidylcholine-sterol o-acyltransferase | <enzyme> An enzyme secreted from the liver into the plasma of many mammalian species. It catalyses the esterification of the hydroxyl group of lipoprotein cholesterol by the transfer of a fatty acid from the c-2 position of lecithin. In familial lecithin:cholesterol acyltransferase deficiency disease, the absence of the enzyme results in an excess of unesterified cholesterol in plasma. Chemical name: Phosphatidylcholine:sterol O-acyltransferase Registry number: EC 2.3.1.43 (12 Dec 1998) |
| phosphatidylcholines | <biochemistry> Derivatives of phosphatidic acids in which the phosphoric acid is bound in ester linkage to a choline moiety. Complete hydrolysis yields 1 mole of glycerol, phosphoric acid and choline and 2 moles of fatty acids. (12 Dec 1998) |
| phosphatidylethanolamine | <biochemistry> A major structural phospholipid in mammalian systems. Tends to be more abundant than phosphatidylcholine in the internal membranes of the cell and is an abundant component of prokaryotic membranes. Ethanolamine is attached to phosphatidic acid by a phosphodiester linkage. Synthesis from diacyl glycerol and CDP-ethanolamine. The condensation product of a phosphatidic acid and ethanolamine; found in biomembranes. See: cephalin. (05 Mar 2000) |
| phosphatidylethanolamine cytidylyltransferase | <enzyme> A key enzyme in the biosynthesis of cephaline. It catalyses the reaction of phosphoethanolamine and CTP to form CDP-ethanolamine and pyrophosphate. (05 Mar 2000) |
| phosphatidylethanolamine N-acyltransferase | <enzyme> Transfers acyl groups from sn-1 position of membrane phospholipids to the amino group of ethanolamine phospholipids Registry number: EC 2.3.1- Synonym: penatfase, n-acylphosphatidylethanolamine synthase, nape synthase (26 Jun 1999) |
| phosphatidylethanolamine-ceramide phosphoethanolamine transferase | <enzyme> Cdpethanolamine is not a donor; involved in sphingomyelin synthesis Registry number: EC 2.7.8.- Synonym: pe-cer-pet transferase (26 Jun 1999) |
| phosphatidylethanolamine-dolichol acyltransferase | <enzyme> Forms dolichyl oleate from dioleoyl phosphatidylethanolamine Registry number: EC 2.3.1.- Synonym: pe - dolichol acyltransferase, dolichol acyltransferase (26 Jun 1999) |
| phosphatidylethanolamines | <biochemistry> Derivatives of phosphatidic acids in which the phosphoric acid is bound in ester linkage to an ethanolamine moiety. Complete hydrolysis yields 1 mole of glycerol, phosphoric acid and ethanolamine and 2 moles of fatty acids. (12 Dec 1998) |
| phosphatidylglycerol | <biochemistry> A phosphatidic acid in which a second glycerol molecule replaces the usual choline, or ethanolamine or serine; a constituent in human amniotic fluid that denotes foetal lung maturity when present in the last trimester. (05 Mar 2000) |
| phosphatidylglycerol - membrane-oligosaccharide glycerophosphotransferase | <enzyme> Transfers phosphoglycerol residues from phosphatidylglycerol to membrane-derived oligosaccharides of E coli Registry number: EC 2.7.8.20 Synonym: phosphoglycerol transferase I, phosphoglyceroltransferase, phosphoglycerol transferase (26 Jun 1999) |
| phosphatidylglycerol glyceryl transferase | <enzyme> Converts prolipoprotein to glyceryl-prolipoprotein in E coli murein-lipoprotein biosynthetic pathway Registry number: EC 2.4.99.- Synonym: glyceryltransferase, phosphatidylglycerol - prolipoprotein diacylglyceryl transferase, umpa gene product, e. Coli, prolipoprotein diacylglyceryl transferase, lgt gene product (26 Jun 1999) |
| phosphatidylglycerols | <biochemistry> A nitrogen-free class of lipids present in animal and particularly plant tissues and composed of one mole of glycerol and 1 or 2 moles of phosphatidic acid. Members of this group differ from one another in the nature of the fatty acids released on hydrolysis. (12 Dec 1998) |
| phosphatidylinositol | <biochemistry> A phosphatidic acid combined with inositol found in biomembranes and a precursor to certain cellular signals. Sometimes referred to as inositide. It is a very important minor phospholipid in eukaryotes, involved in signal transduction processes. Contains myo inositol linked through the 1 hydroxyl group to phosphatidic acid. The 4 phosphate (PIP) and 4, 5 bisphosphate derivatives PIP2) are formed and broken down in membranes by the action of specific kinases and phosphatases (futile cycles). Signal sensitive phospholipase C enzymes remove the inositol moiety, in particular from 1,4,5 trisphosphate (PIP2) as inositol 1,4,5 triphosphate (Ins P3: IP3). Both the diacyl glycerol and products act as second messengers. Synonym: phosphoinositide. (20 Sep 2002) |
Synonyms : HCNP Precursor Protein, Hippocampal Cholinergic Neurostimulating Peptide Precursor, Phosphatidylethanolamine-Binding Protein, Raf Kinase Inhibitor Protein
Synonyms : Cephalin N-Methyltransferase, PHET Methyltransferase II, Phosphatidylethanolamine Methyltransferase, Phosphatidylethanolamine N-Methyltransferase-2, Phosphatidylethanolamine-Methyltransferase II, Phospholipid Methyltransferase II, Methyltransferase II, PHET
Synonyms : Ethanolamineglycerophospholipids, Phosphoglycerides, Ethanolamine
Synonyms : Phosphatidyl Glycerol, Glycerol, Phosphatidyl, Phosphoglycerides, Glycerol
Synonyms : Phosphatidylinositol 4, 5-Biphosphate, PtIns 4, 5-P2, 4, 5-Biphosphate, Phosphatidylinositol, 4, 5-Diphosphate, Phosphatidylinositol, Phosphatidylinositol 4, 5 Biphosphate, Phosphatidylinositol 4, 5 Bisphosphate, Phosphatidylinositol 4, 5 Diphosphate
| phosphorescence |
a fluorescence that persists after the bombarding radiation has ceased
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| phosphorous acid |
hypophosphorous acid: a clear or yellow monobasic acid (H3PO2)
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| phosphorus |
a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms morning star: a planet (usually Venus) seen just before sunrise in the eastern sky
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| phosphatase |
any of a group of enzymes that act as a catalyst in the hydrolysis of organic phosphates
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| phospho- |
Phosphorus, (from the Greek language Phosphoros meaning "light bearing"), is the chemical element in the periodic table that has the symbol P and atomic number 15. A multivalent, nonmetal of the nitrogen group, phosphorus is commonly found in inorganic phosphate rocks and in all living cells. Due to its high reactivity, it is never found as a free element in nature. ...
출처: en.wikipedia.org/wiki/Phospho
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