| uric acid oxidase | <enzyme> An enzyme that catalyses the conversion of urate and unidentified products. It is a copper protein. The initial products decompose to form allantoin. Chemical name: Urate:oxygen oxidoreductase Registry number: EC 1.7.3.3 (12 Dec 1998) |
|---|
| uric acid | <biochemistry> The final product of nitrogenous excretion in animals that require to conserve water, such as terrestrial insects or have limited storage space, such as birds and their eggs. Uric acid has very low water solubility and crystals may be deposited in, for example: butterflies wings to impart irridescence. Uric acid, a crystalline body, present in small quantity in the urine of man and most mammals. Combined in the form of urate of ammonia, it is the chief constituent of the urine of birds and reptiles, forming the white part. Traces of it are also found in the various organs of the body. It is likewise a common constituent, either as the free acid or as a urate, of urinary or renal calculi and of the so-called gouty concretions. From acid urines, uric acid is frequently deposited, on standing in a cool place, in the form of a reddish yellow sediment, nearly always crystalline. Chemically, it is composed of carbon, hydrogen, nitrogen, and oxygen, and by decomposition yields urea, among other products. It can be made synthetically by heating together urea and glycocoll. It was formerly called also lithic acid, in allusion to its occurrence in stone, or calculus. See: tophus. Structure: C5H4N4O3 Source: Websters Dictionary (18 Nov 1997) |
|---|---|
| uric acid infarct | <nephrology, paediatrics> Precipitates of uric acid distending renal collecting tubules in the newborn; since there is no necrosis, the term infarct is a misnomer. (20 Jun 2000) |
| uric | <nephrology> Of or pertaining to urine, obtained from urine. For example; uric acid. Origin: G. Ouron, urine (20 Jun 2000) |
| beta-aminoisobutyric acid oxidase | <enzyme> Fad-stimulated, probably forms methylmalonylsaemialdehyde Registry number: EC 1.4.3.- Synonym: baib-oxidase (26 Jun 1999) |
| phytanic acid alpha-oxidase | <enzyme> May be the genetic defect in refsum's disease Registry number: EC 1.14.99.- Synonym: phytanic acid alpha-hydroxylase (26 Jun 1999) |
| homogentisic acid oxidase | An iron-containing enzyme that catalyses the oxidative cleavage of the benzene ring in homogentisic acid by O2, forming 4-maleylacetoacetate; an absence or deficiency of this enzyme will result in alcaptonuria. Synonym: homogentisic acid oxidase. (05 Mar 2000) |
| N(6)-(6-carbamoylhexyl)-FAD-D-amino acid oxidase | <enzyme> A semi-synthetic oxidase; prepared by reacting the succinimido ester of n(6)-(6-carboxyhexyl)-fad with apo-d-amino acid oxidase from pig kidney in the presence of the benzoate Registry number: EC 1.4.3.- Synonym: nch-fad-daao (26 Jun 1999) |
| d-amino-acid oxidase | <enzyme> Chemical name: D-Amino-acid:oxygen oxidoreductase (deaminating) Registry number: EC 1.4.3.3 (12 Dec 1998) |
| dicarboxylic acid-CoA oxidase | <enzyme> Oxidises dicarboxylic acid CoA esters using molecular oxygen and producing hydrogen peroxide, ultimately producing a dicarboxylic acid with 2 fewer carbon atoms Registry number: EC 1.3.3.- Synonym: dicarboxylyl-CoA oxidase, dicarboxylic acid-coenzyme a oxidase (26 Jun 1999) |
| dihdroxyindole-carboxylic acid oxidase | <enzyme> Converts 5,6-dihydroxyindole-2-carboxylic acid to melanochrome in premelanosomes; no further information on mechanism 6/95 Registry number: EC 1.- Synonym: dhica oxidase, dhi2c oxidase (26 Jun 1999) |
| indoleacetic acid oxidase | <enzyme> Found in tomatoes Registry number: EC 1.11.- Synonym: iaa oxidase (26 Jun 1999) |
| 1-aminocyclopropane-1-carboxylic acid oxidase | <enzyme> The last enzyme in the ethylene pathway; converts aminocyclopropane-1-carboxylic acid + oxygen + ascorbate to ethylene + co2 + hcn + dehydroascorbate + 2h2o Registry number: EC 1.4.3.- Synonym: acc oxidase, 1-aminocyclopropane-1-carboxylate oxidase (26 Jun 1999) |
| 3-hydroxyanthranilic acid oxidase | <enzyme> Catalyses the oxidation of 3-hydroxyanthranilate to 1,2-benzoquinoneimine-3-carboxylate in presence of molecular oxygen Registry number: EC 1.10.3.5 (26 Jun 1999) |
| folic acid oxidase | <enzyme> Enzyme from human red blood cell membranes; catalyses oxidation of folic acid to pterin-6-aldehyde plus p-aminobenzoylglutamic acid in presence of h2o2; singlet oxygen is involved Registry number: EC 1.11.- (26 Jun 1999) |
| Rambourg's chromic acid-phosphotungstic acid stain | <technique> A stain for glycoproteins, used with an electron microscope, with which ultrathin tissue sections reveal complex carbohydrates in the same locations as shown by Rambourg's periodic acid-chromic methenamine-silver stain. (05 Mar 2000) |