| phosphorus, dietary | Phosphorus used in foods or obtained from food. This element is a major intracellular component which plays an important role in many biochemical pathways relating to normal physiological functions. High concentrations of dietary phosphorus can cause nephrocalcinosis which is associated with impaired kidney function. Low concentrations of dietary phosphorus cause an increase in calcitriol in the blood and osteoporosis. (12 Dec 1998) |
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| phosphorus-32 | Radioactive phosphorus isotope; beta emitter with half-life of 14.28 days; used as tracer in metabolic studies and in the treatment of certain diseases of the osseous and haematopoietic systems. (05 Mar 2000) |
| phosphorus-33 | A radioactive isotope of phosphorus with a half-life of 25.3 days; used as a tracer in metabolic studies. (05 Mar 2000) |
| phosphorus-oxygen lyases | <enzyme> Enzymes that catalyze the cleavage of a phosphorus-oxygen bond by means other than hydrolysis or oxidation. Registry number: EC 4.6 (12 Dec 1998) |
| phosphoryl | 1. <chemistry> The radical PO, regarded as the typical nucleus of certain compounds. 2. <prefix> Prefix incorrectly used to signify a phosphate (e.g., phosphorylcholine) in place of the correct O-phosphono-or phospho-. Source: Websters Dictionary (21 Jun 2000) |
| phosphorylase | <enzyme> Enzyme that catalyses the sequential removal of glycosyl residues from glycogen to yield one glucose-1-phosphate per reaction. Its activity is controlled by phosphorylation (by phosphorylase kinase). (21 Jun 2000) |
| phosphorylase a | <enzyme> The phosphorylated and more active form of phosphorylase that functions as a regulatory enzyme during glycogen breakdown. The phosphate groups are hydrolytically removed by phosphorylase phosphatase to form phosphorylase b and orthophosphate. Registry number: EC 2.4.1.- (12 Dec 1998) |
| phosphorylase b | <enzyme> The relatively inactive form of phosphorylase that is reactivated to form phosphorylase a by phosphorylase kinase, which catalyses the enzymatic phosphorylation of the serine residues at the expense of ATP. Registry number: EC 2.4.1.- (12 Dec 1998) |
| phosphorylase kinase | <enzyme> The enzyme that regulates the activity of phosphorylase and glycogen synthetase by addition of phosphate groups. A large and complex enzyme, itself regulated by phosphorylation. Integrates the hormonal and calcium signals in muscle. (18 Nov 1997) |
| phosphorylase kinase phosphatase | <enzyme> Aspect of phosphoprotein phosphatase EC 3.1.3.16 Registry number: EC 3.1.3.- (26 Jun 1999) |
| phosphorylase phosphatase | <enzyme> An enzyme that deactivates glycogen phosphorylase a by releasing inorganic phosphate and phosphorylase b, the inactive form. Chemical name: (Phosphorylase a) phosphohydrolase Registry number: EC 3.1.3.17 (12 Dec 1998) |
| phosphorylase-rupturing enzyme | <enzyme> An enzyme that deactivates glycogen phosphorylase a by releasing inorganic phosphate and phosphorylase b, the inactive form. Chemical name: (Phosphorylase a) phosphohydrolase Registry number: EC 3.1.3.17 (12 Dec 1998) |
| phosphorylases | 1. General term for enzymes transferring an inorganic phosphate group to some organic acceptor, hence belonging to the transferases. 2. Specifically, enzymes that release a single glucosyl residue from a polyglucose as d-glucose 1-phosphate, the phosphate coming from inorganic orthophosphate; e.g., phosphophorylase, sucrose phosphorylases, cellobiose phosphorylases. (05 Mar 2000) |
| phosphorylation | <biochemistry> The creation of a phosphate derivative of an organic molecule. This isusually achieved by transferring a phosphate group from ATP. (09 Oct 1997) |
| phosphorylation of proteins | <biochemistry> Addition of phosphate groups to hydroxyl groups on proteins (side chains s, T or Y) catalysed by a protein kinase often specific) with ATP as phosphate donor. Activity of proteins is often regulated by phosphorylation. (18 Nov 1997) |
Synonyms :
Synonyms : Lyases, Phosphorus-Oxygen, Phosphorus Oxygen Lyases
Synonyms :
Synonyms :
Synonyms : Glycogen Phosphorylase Kinase, Phosphorylase b Kinase, Kinase, Glycogen Phosphorylase, Kinase, Phosphorylase, Kinase, Phosphorylase b, Phosphorylase Kinase, Glycogen, b Kinase, Phosphorylase
| phosphorylation |
(Fos for i la shun) - The addition of a phosphate group
출처: student.biology.arizona.edu/honors2000/group10/Glo...
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| phosphorus |
A highly reactive, poisonous, nonmetallic element occurring naturally in phosphates, especially apatite, which is found as a white, or yellowish, translucent waxy substance, having a characteristic disagreeable smell and a faint glow.
출처: www.zulumoon.com/glossary/P-glossary.htm
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| phosphorus |
An element necessary for normal body functions, especially bone formation.
출처: www.kidneyoptions.com/medicalterm.html
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| phosphate |
A salt composed of the most highly oxidized acid of phosphorus, and forms an important and extensive series of compounds.
출처: www.zulumoon.com/glossary/P-glossary.htm
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| phosphatase |
a specific class of enzymes that catalyses (ie speeds up) the removal of phosphate groups from proteins. See also kinases.
출처: www.biotechshares.com/glossary.htm
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