| 4-hydroxyproline oxidase | A flavoenzyme that catalyses the conversion of 4-hydroxyproline to d'-pyrroline-3-hydroxy-5-carboxylate using FAD; this enzyme appears to be deficient in individuals with hyperhydroxyprolinaemia, an enzyme that catalyses the reaction of 4-hydroxyproline with NAD+ to form NADH and 4-oxoproline. Synonym: 4-oxoproline reductase. (05 Mar 2000) |
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| 4-phenylenediamine oxidase | <enzyme> When used as assay for ceruloplasmin, index *ceruloplasmin Registry number: EC 1.4.- Synonym: polyphenylenediamine oxidase, ppd oxidase, p-phenylenediamine oxidase (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) |
| L-aspartate oxidase | <enzyme> E coli enzyme; forms unstable product, iminoaspartate; b protein of quinolinate synthetase Registry number: EC 1.4.3.16 Synonym: b-protein, quinolinate synthetase, l-aspartate - fumarate oxidoreductase (26 Jun 1999) |
| formyl sterol oxidase | <enzyme> Converts sterol 4-aldehyde to a carboxylic acid in presence of NADH or NADPH Registry number: EC 1.2.1.- (26 Jun 1999) |
| fructosyl lysine oxidase | <enzyme> Isolated from fusarium oxysporum; mw 50 kD; catalyses the h2o2-producing deglycating oxidation of n(alpha/epsilon)-fructosyl-n(alpha/epsilon) )-z-lysine Registry number: EC 1.4.3.- (26 Jun 1999) |
| L-galactonolactone oxidase | <enzyme> Flavin-containing enzyme from yeast which utilises oxygen as electron acceptor; forms ascorbic acid Registry number: EC 1.3.3.24 Synonym: galactono-gamma-lactone oxidase, l-galactono-1,4-lactone-oxygen 3-oxidoreductase (26 Jun 1999) |
| L-gulonolactone oxidase | <enzyme> Forms ascorbic acid Registry number: EC 1.1.3.8 Synonym: l-gulonooxidase, l-gulono-gamma-lactone dehydrogenase, l-gulono-gamma-lactone oxidase (26 Jun 1999) |
| lignoceroyl-CoA oxidase | <enzyme> Catalyses the beta-oxidation of lignoceroyl-CoA Registry number: EC 1.3.3.- (26 Jun 1999) |
| L-lysine oxidase | <enzyme> Converts l-lysine to 2-oxo-6-aminohexanoate Registry number: EC 1.4.3.14 Synonym: l-lysine-alpha oxidase (26 Jun 1999) |
| L-tryptophan 2',3'-oxidase | <enzyme> Specifically catalyses the alpha,beta-dehydrogenation of l- tryptophan derivatives; from chromobacterium violaceum Registry number: EC 1.3.99.- Synonym: l-tryptophan - oxygen 2',3'-oxidoreductase, l-trp-2',3'-oxidase (26 Jun 1999) |
| lysyl oxidase | <enzyme> Extracellular enzyme that deaminates lysine and hydroxylysine residues in collagen or elastin to form aldehydes, that then interact with each other or with other lysyl side chains to form crosslinks. (18 Nov 1997) |
| accelerated reaction | A response occurring in a shorter time than expected; the cutaneous manifestations occurring during the period between the second and tenth day following smallpox vaccination; because it is intermediate between a primary reaction and an immediate reaction, it is regarded as evidence of some degree of resistance. Synonym: vaccinoid reaction. (05 Mar 2000) |
| acid reaction | Any test by which an acid reaction is recognised such as the change of blue litmus paper to red, an excess of hydrogen ions over hydroxide ions in aqueous solution indicated by a pH value less than 7 (at 22캜). Compare: dissociation constant of water. (05 Mar 2000) |
| acute-phase reaction | <immunology, rheumatology> Refers to the changes in synthesis of certain proteins within the serum during an inflammatory response, which provides rapid protection for the host against microorganisms via non-specific defense mechanisms. It consists of fever, an increase in inflammatory humoral factors, and an increased synthesis by hepatocytes of a number of proteins or glycoproteins usually found in the plasma; the reaction is mediated by endogenous pyrogens, the hypothalamus, adrenal hormones, and other factors. (12 Jul 2000) |