| ECP | ectrodactyly-cleft palate [syndrome]; effector cell precursor; endocardial potential; eosinophil cat... |
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| EDF | eosinophil differentiation factor; erythroid differentiation factor; extradural fluid |
| EDN | electrodesiccation; eosinophil-derived neurotoxin |
| EO | eosinophil; ethylene oxide; eyes open |
| EOS | end of study; eosinophil; European Orthodontic Society |
| peroxidase | <enzyme> A haem enzyme that catalyses reduction of hydrogen peroxide by a substrate that loses two hydrogen atoms. Within cells, may be localised in peroxisomes. Coloured reaction products allow detection of the enzyme with high sensitivity, so peroxidase coupled antibodies are widely used in microscopy and ELISA. Lactoperoxidase is used in the catalytic surface labelling of cells by radioactive iodine. (18 Nov 1997) |
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| peroxidase reaction | Formation of indophenol blue by the action of an oxidizing enzyme present in certain cells and tissues when they are treated with a solution of alpha-naphthol and dimethylparaphenylenediamine; by this method, cells of the myelocyte series, which give a positive reaction, may be distinguished from those of the lymphocyte series, which give a negative reaction; endothelial leukocytes give a variable reaction, probably positive when they have phagocytised the debris of myeloid cells. Synonym: Nadi reaction. (05 Mar 2000) |
| peroxidase stain | <technique> A method for demonstrating peroxidase granules in some neutrophils and in eosinophils; the enzyme promotes the oxidation of benzidine by hydrogen peroxide; tissues treated with horseradish peroxidase can also have the enzyme detected in the electron microscope. (05 Mar 2000) |
| Rip1 peroxidase | <enzyme> Isolated from rhizobium; do not confuse with rip1 gene product Registry number: EC 1.11.1.- Synonym: rip1 gene product, peroxidase, rhizobium-induced peroxidase rip1 (26 Jun 1999) |
| cholera toxin, B subunit-horseradish peroxidase | <chemical> Conjugate of horseradish peroxidase and cholera toxin Synonym: bhrp, horseradish peroxidase-cholera toxin b subunit, cholera toxin-horseradish peroxidase, horseradish peroxidase-cholera toxin, ib4-hrp (26 Jun 1999) |
| 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) |
| wheat germ agglutinin-horseradish peroxidase conjugate | <chemical> The lectin wheatgerm agglutinin conjugated to the enzyme horseradish peroxidase. It is widely used for tracing neural pathways. Pharmacological action: molecular probes. (12 Dec 1998) |
| wheat peroxidase | <enzyme> Gene of this enzyme is neither pathogen- nor wound-induced in leaves but is constitutively expressed in roots; amino acid sequence given in first source Registry number: EC 1.11.1.- Synonym: triticum peroxidase (26 Jun 1999) |
| porphyrin cytochrome c peroxidase | <enzyme> From yeast; haem group of cytochrome c peroxidase (EC 1.11.1.5) replaced by protoporphyrin ix Registry number: EC 1.11.1.- Synonym: pcc-peroxidase (26 Jun 1999) |
| cytochrome C553 peroxidase | <enzyme> A haem group of cytochrome-c peroxidase (EC 1.11.1.5); catalytically active in both the oxidised and half-reduced states; from nitrosomonas europaea; partial amino acid sequence given in first source Registry number: EC 1.11.1.- (26 Jun 1999) |
| cytochrome-c peroxidase | <enzyme> A haemprotein which catalyses the oxidation of ferrocytochrome c to ferricytochrome c in the presence of hydrogen peroxide. Chemical name: Ferrocytochrome c:hydrogen-peroxide oxidoreductase Registry number: EC 1.11.1.5 (12 Dec 1998) |
| cytochrome peroxidase | A haemoprotein enzyme catalyzing the reaction between H2O2 and 2 ferrocytochrome c to yield 2ferricytochrome c and 2H2O. (05 Mar 2000) |
| progesterone-11HS-horseradish peroxidase | <chemical> Used as a tracer in an immunoassay for progesterone Synonym: p-11hs-hrp, progesterone-11hs-hrp (26 Jun 1999) |
| progesterone-3-(O-carboxymethyl oxime)-horseradish peroxidase | <chemical> Used as a tracer in an immunoassay for progesterone Synonym: progesterone-3-(o-carboxymethyl oxime)-hrp, p-3cmo-hrp (26 Jun 1999) |
| scopoletin peroxidase | <enzyme> Used to determine monoamine oxidase activity of thrombocytes Registry number: EC 1.11.- (26 Jun 1999) |