| arginase | <enzyme> A ureahydrolase that catalyses the hydrolysis of arginine and canavanine to yield l-ornithine and urea. Chemical name: L-Arginine amidinohydrolase Registry number: EC 3.5.3.1 (12 Dec 1998) |
|---|---|
| arginase deficiency | <biochemistry> Arginase is the fifth enzyme of the urea cycle and catalyses the hydrolysis of arginine to ornithine and urea as the final step in the detoxification of ammonia. Deficiency of the enzyme results in hyperargininaemia and episodic hyperammonaemia, leading to moderate to severe mental retardation and spasticity. at least two isozymes of arginase exist in man. AI (the enzyme deficient in the disorder) is cytosolic and found primarily in liver and red blood cells, whereas AII is mitochondrial and found predominantly in kidney but also to a lesser extent in liver, brain, and other tissues. While AII activity appears to be induced in AI deficiency, it is only partially effective in maintaining urea cycle function. The normal in vivo function of AII is unclear. Arginase deficiency is diagnosed by observing high arginine concentrations on either qualitative or quantitative plasma or urine amino acid analysis. The diagnosis is confirmed by finding markedly decreased or absent arginase activity in an isotopic red blood cell enzymatic assay. The AI gene has been cloned, sequenced, and localised to human chromosome band 6q23. (17 Dec 1997) |
| monomethoxypolyethylene glycol-arginase | <chemical> Monomethylethylene glycol and arginase are attached covalently Pharmacological action: antineoplastic agent Synonym: mm-peg-arginase (26 Jun 1999) |
|---|
Synonyms : Arginase A1, Arginase A4, Hepatic Proliferation Inhibitor, Liver Immunoregulatory Protein, Liver-Derived Inhibitory Protein, Liver-Derived Lymphocyte Proliferation Inhibiting Protein, Immunoregulatory Protein, Liver, Inhibitor, Hepatic Proliferation
| arginase |
Enzyme which enhances the infection-fighting ability of the body's defense system (macrophages).
Ãâó: niazi.com/Omega/glossary.htm
|
|---|---|
| arginase deficiency |
an autosomal recessive aminoacidopathy involving the biosynthesis of urea; arginine is elevated in blood and urine and may cause secondary cystinuria; oroticaciduria is common, but hyperammonemia is rare. Clinical signs include psychomotor retardation, hepatomegaly, and scalp discoloration. Called also argininemia and hyperargininemia.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|