| phospholipase B | There are reports that phospholipase B is a mixture of phospholipase A1 and phospholipase A2. See: lysophospholipase. (05 Mar 2000) |
|---|---|
| phospholipase c | <enzyme> An enzyme found in the alpha-toxin of clostridium welchii and other strains of clostridia and bacilli. It hydrolyzes glycerophosphatidates with the formation of 1,2-diacylglycerol and a phosphorylated nitrogenous base such as choline. Chemical name: Phosphatidylcholine cholinephosphohydrolase Registry number: EC 3.1.4.3 (12 Dec 1998) |
| phospholipase d | <enzyme> An enzyme found mostly in plant tissue. It hydrolyzes glycerophosphatidates with the formation of a phosphatidic acid and a nitrogenous base such as choline. This enzyme also catalyses transphosphatidylation reactions. Chemical name: Phosphatidylcholine phosphatidohydrolase Registry number: EC 3.1.4.4 (12 Dec 1998) |
| phospholipases | <enzyme> A class of enzymes that catalyze the hydrolysis of phosphoglycerides or glycerophosphatidates. Registry number: EC 3.1.- (12 Dec 1998) |
| phospholipases a | <enzyme> Phosphatide acylhydrolases. Catalyze the hydrolysis of one of the acyl groups of phosphoglycerides or glycerophosphatidates. Phospholipase a1 hydrolyzes the acyl group attached to the 1-position (ec 3.1.1.32) and phospholipase a2 hydrolyzes the acyl group attached to the 2-position (ec 3.1.1.4). Registry number: EC 3.1.1.- (12 Dec 1998) |
| phospholipid | <biochemistry> The major structural lipid of most cellular membranes (except the chloroplast which has galactolipids). Contain phosphate, usually as a diester. Examples include phosphatidyl phospholipids, plasmalogens and sphingomyelins. (18 Nov 1997) |
| phospholipid bilayer | <biochemistry> A lamellar organisation of phospholipids that are packed as a bilayer with hydrophobic acyl tails inwardly directed and polar head groups on the outside surfaces. It is this bilayer that forms the basis of membranes in cells, though in most cellular membranes a very substantial proportion of the area may be occupied by integral proteins. The triple layered appearance of membranes seen in electron microscopy is thought to arise because the osmium tetroxide binds to the polar regions leaving a central, unstained, hydrophobic region. (31 Dec 1997) |
| phospholipid ethers | Phospholipids which have an alcohol moiety in ethereal linkage with a saturated or unsaturated aliphatic alcohol. They are usually derivatives of phosphoglycerols or phosphatidates. The other two alcohol groups of the glycerol backbone are usually in ester linkage. These compounds are widely distributed in animal tissues. (12 Dec 1998) |
| phospholipid syndrome | <syndrome> The combination of antiphospholipid antibodies and the presence of either arterial or venous occlusive events such as thrombosis. (05 Mar 2000) |
| phospholipid transfer protein | <protein> Cytoplasmic proteins that bind phospholipids and facilitate their transfer between cellular membranes. May also cause net transfer from the site of synthesis. (18 Nov 1997) |
| phospholipid-hydroperoxide glutathione peroxidase | <enzyme> Selenoenzyme found in biological materials; different from glutathione peroxidase EC 1.11.1.9 Registry number: EC 1.11.1.- Synonym: pH-gperoxidase (26 Jun 1999) |
| phospholipids | Lipids containing one or more phosphate groups, particularly those derived from either glycerol (phosphoglycerides see glycerophosphates) or sphingosine (sphingolipids). They are polar lipids that are of great importance for the structure and function of cell membranes and are the most abundant of membrane lipids, although not stored in large amounts in the system. (12 Dec 1998) |
| phosphomannomutase | <enzyme> Catalyses reversibly the conversion of d-mannose 1-phosphate to d-mannose 6-phosphate; encoded by algc gene in pseudomonas aeruginosa; rfbk has similarity to acyl carrier proteins Registry number: EC 5.4.2.8 Synonym: algc protein, rfbk gene product, rfbk protein, pmma gene product, pmm2 gene product, pmm1 gene product (26 Jun 1999) |
| phosphomannose | <biochemistry> Mannose derivative formed by phosphorylation in the Golgi complex of certain mannose residues on N glycan chains of lysosomal enzymes. Believed to function as targetting signal that causes entry of these enzymes to the lysosomes. The receptor (215 kD) is enriched in specialised pre lysosomes. (18 Nov 1997) Previous: mannosamine, mannosans, mannose, mannose-1-phosphate guanylyltransferaseNext: mannose-6-phosphate isomerase, mannose-6-phosphate receptorsphosphomannose -->mannose-6-phosphate isomerase <enzyme> An enzyme that catalyses the reversible isomerization of d-mannose-6-phosphate to form d-fructose-6-phosphate, an important step in glycolysis. Chemical name: D-Mannose-6-phosphate ketol isomerase Registry number: EC 5.3.1.8 (12 Dec 1998) Previous: mannose, mannose-1-phosphate guanylyltransferase, mannose-6-phosphateNext: mannose-6-phosphate receptors, mannose-6-phosphate reductasephosphomannose -->mannose-6-phosphate receptors Receptors in Golgi apparatus to which newly synthesised proteins that are destined to enter lysosomes bind. (05 Mar 2000) Previous: mannose-1-phosphate guanylyltransferase, mannose-6-phosphate, mannose-6-phosphate isomeraseNext: mannose-6-phosphate reductase, mannosephosphate isomerasephosphomannose -->mannose-6-phosphate reductase <enzyme> Involved in biosynthesis of mannitol in celery Registry number: EC 1.1.1.224 Synonym: manp reductase (26 Jun 1999) |
| phosphomannose isomerase-guanosine diphospho-D-mannose pyrophosphorylase | <chemical> Encoded by alfa gene; from pseudomonas aeruginosa; similar to pssm protein; amino acid sequence given in first source;see also separate records for EC 2.7.7.13 (GDPmannose pyrophosphorylase) and EC 5.3.1.8 (mannosephosphate isomerase) Synonym: pmi-GMP, alga protein (26 Jun 1999) |
Synonyms : Phosphatidate 1-Acylhydrolase, 1-Acylhydrolase, Phosphatidate, A, Phospholipases, A1, Lecithinase, A1, Phospholipase, A2, Lecithinase, A2, Phospholipase, Phosphatidate 1 Acylhydrolase
Synonyms : 1-Alkyl-2-Acylphosphatidates, 1 Alkyl 2 Acylphosphatidates, Ethers, Glycerol Phosphate, Ethers, Glycerophosphate, Ethers, Phospholipid, Phosphate Ethers, Glycerol, Phosphatidates, Ether, Phospholipids, Ether
Synonyms : Aminophospholipid Flippase, Aminophospholipid Transfer Proteins, Aminophospholipid Translocase, Aminophospholipid Translocator, Aminophospholipid Transporter, Lecithin Transfer Protein, Nonspecific Phospholipid Transfer proteins, Phosphatidyl Transfer Protein
Synonyms :
Synonyms : Phosphonates, Phosphonic Acid Esters, Acid Esters, Phosphonic, Acids, Phosphonic, Esters, Phosphonic Acid
| 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
|
|---|---|
| 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
|
| phosphorescent |
lucid; emitting light in the dark.
출처: www.biology.lsu.edu/heydrjay/ThomasSay/terms.html
|
| phosphorylation |
The creation of a phosphate derivative of an organic molecule. This is usually achieved by transferring a phosphate group (-PO 4 ) from ATP to another molecule.
출처: www.nutrabio.com/Definitions/definitions_p.htm
|
| phosphorylation |
the addition of a phosphate group to a compound by an enzyme (eg, thymidine kinase, tyrosine kinase). Phosphorylation is an essential step in many cellular processes.
출처: www.aegis.com/pubs/beta/2000/BE000419.html
|