| HO | Haem oxygenase |
|---|---|
| HO-1 | Haem oxygenase-1 |
| haem | 1. <biochemistry> Compounds of iron complexed in a porphyrin (tetrapyrrole) ring that differ in side chain composition. Haems are the prosthetic groups of cytochromes and are found in most oxygen carrier proteins. 2. <prefix> haem-, eaning relating to blood. Origin: G. Haima (21 Jun 2000) |
|---|---|
| haem a | A derivative of haem found in cytochrome aa3. (05 Mar 2000) |
| haem A-farnesyltransferase | <enzyme> Required for synthesis of cytochrome oxidase and haem a synthesis; found in mitochondria of saccharomyces cerevisiae; has been sequenced Registry number: EC 2.5.1.- Synonym: cox10 gene product, cox10 protein (26 Jun 1999) |
| haem c | A derivative of haem found in cytochromes c, b4, and f. (05 Mar 2000) |
| haem oxygenase (decyclizing) | <enzyme> A mixed function oxidase enzyme which during haemoglobin catabolism catalyses the degradation of haem to ferrous iron, carbon monoxide and biliverdin in the presence of molecular oxygen and reduced NADPH. The enzyme is induced by metals, particularly cobalt. Chemical name: Haem,hydrogen-donor:oxygen oxidoreductase (alpha-methene-oxidizing, hydroxylating) Registry number: EC 1.14.99.3 (12 Dec 1998) |
| haem polymerase | <enzyme> Malarial enzyme forms haemozoin from haem derived from haemoglobin; no information on mechanism 2/92 Registry number: EC 2.- Synonym: haem polymerase (26 Jun 1999) |
| cytochrome C1 haem lyase | <enzyme> A mitochondrial haem lyase from saccharomyces cerevisiae; mw about 31 kD; facilitates covalent attachment of haem to the apoforms of c-type cytochromes Registry number: EC 4.99.- Synonym: yeast cc1hl (26 Jun 1999) |
| non-haem iron protein | <biochemistry> Any protein containing iron but not any haem iron; e.g., NADH dehydrogenase. They are often found in oxidation-reduction reactions, and contain iron but no porphyrin groups. (17 Jul 2002) |
| haem- |
heme: a complex red organic pigment containing iron and other atoms to which oxygen binds
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