| 4-hydroxy-5-polyprenylbenzoate hydroxylase | <enzyme> Involved in ubiquinone biosynthesis Registry number: EC 1.14.13.- Synonym: 4-oh-5-ppb hydroxylase (26 Jun 1999) |
|---|---|
| 5-formyl-3-hydroxy-2-methylpyridine-4-carboxylic acid dehydrogenase | <enzyme> Nad+ dependent; from pseudomonas ma-1 grown on pyridoxine; involved in vitamin b6 degradation Registry number: EC 1.1.1.- Synonym: fhmpc dehydrogenase (26 Jun 1999) |
| 5-hydroxy-N-methylpyroglutamic acid synthetase | <enzyme> Methylamine plus alpha-ketoglutarate gives 5-hydroxy-n-methylpyroglutamic acid Registry number: EC 4.2.1.- (26 Jun 1999) |
| 5-hydroxy tryptamine antagonists | Agents which block serotonin receptors and hence interfere with the biological actions of serotonin (5-HT). (05 Mar 2000) |
| 7 alpha-hydroxy-4-cholesten-3-one-12 alpha monooxygenase | <enzyme> Liver microsomal enzyme active in conversion of cholesterol to cholic acid; introduces a 12 alpha-hydroxyl group into the steroid nucleus of cholesterol Registry number: EC 1.14.99.- Synonym: 7-hco-monooxygenase, hco 12 alpha-hydroxylase (26 Jun 1999) |
| 8-hydroxy-2-(di-n-propylamino)tetralin | <chemical> 7-(dipropylamino)-5,6,7,8-tetrahydro-1-naphthalenol. A serotonin 1a-receptor agonist that is being used experimentally to test the effects of serotonin. Pharmacological action: serotonin agonists. Chemical name: 1-Naphthalenol, 7-(dipropylamino)-5,6,7,8-tetrahydro- (12 Dec 1998) |
| 8-hydroxy-5-deazaflavin-dependent DNA photolyase | <enzyme> From anacystis nidulans; purified in streptomyces coelicolor; distinguish from folate-dependent DNA photolyase Registry number: EC 4.1.99.- Synonym: 8-hdfd-DNA photolyase (26 Jun 1999) |
| 8-hydroxy-5-deazaflavin-NADPH oxidoreductase | <enzyme> From streptomyces griseus; mw 42kda; acts as an electron transfer carrier Registry number: EC 1.6.99.- Synonym: hdaf-NADPH oxidoreductase (26 Jun 1999) |
| bacteria-free stage of bacterial endocarditis | Endocarditis described prior to the antibiotic era and presumably due to spontaneous healing of the bacterial vegetations. (05 Mar 2000) |
| carbon dioxide-free water | Purified water that has been boiled vigorously for 5 minutes or more. (05 Mar 2000) |
| germ-free animal | An animal which has no microorganisms whatsoever living in or on it. An animal which was born and raised in an isolated environment with no microorganisms in it, such as within a germ-free isolator. (09 Oct 1997) |
| germ-free isolator | A chamber which has absolutely no microorganisms whatsoever living in it, where a germ-free animal can be born and raised. An artificial barrier surrounding a living facility for germ-free animals, which keeps out all microorganisms. (09 Oct 1997) |
| germ-free life | Animals not contaminated by or associated with any foreign organisms. (12 Dec 1998) |
| carrier-free | A substance in which a radioactive or other tagged atom is found in every molecule; the highest possible specific activity. (05 Mar 2000) |
| gibbs free energy | The total amount of energy which is either used up or released during a chemical reaction. Gibbs free energy (delta G) = (delta H) - t (delta s): where (delta H) is the change in enthalpy, calculated by adding up the amount of energy released or used up to break or form chemical bonds during the reaction, t is the temperature at which the reaction took place, and (delta S) is the change in entropy, or amount of disorder, that occurs in the molecules involved during the reaction. (09 Oct 1997) |