| 5-oxoproline | A keto derivative of proline that is formed nonenzymatically from glutamate, glutamine, and gamma-glutamylated peptides; it is also produced by the action of gamma-glutamylcyclotransferase; elevated levels of 5-oxoproline are often associated with problems of glutamine or glutathione metabolism. Synonym: 5-pyrrolidone-2-carboxylic acid, pyroglutamic acid, pyrrolidone-5-carboxylate. (05 Mar 2000) |
|---|---|
| 5-oxoprolinuria | Elevated levels of 5-oxoproline in the urine. (05 Mar 2000) |
| 5-phospho-alpha-d-ribosyl 1-pyrophosphate | 5-Phosphoribosyl 1-diphosphate;d-Ribose carrying a phosphate group on ribose carbon-5 and a pyrophosphate group on ribose carbon-1; an intermediate in the formation of the pyrimidine and purine nucleotides as well as NAD+. Synonym: 5-phosphoribose 1-diphosphate. Acronym: PRPP (05 Mar 2000) |
| 5-phosphoribose 1-diphosphate | 5-Phosphoribosyl 1-diphosphate;d-Ribose carrying a phosphate group on ribose carbon-5 and a pyrophosphate group on ribose carbon-1; an intermediate in the formation of the pyrimidine and purine nucleotides as well as NAD+. Synonym: 5-phosphoribose 1-diphosphate. Acronym: PRPP (05 Mar 2000) |
| 5-phosphoribosylamine | An intermediate in purine biosynthesis. (05 Mar 2000) |
| 5-pyridoxic acid oxygenase | <enzyme> From arthrobacter cr-7 grown on pyridoxine; forms alpha-hydroxymethyl-alpha'-(n-acetylaminomethylene)succinic acid; uses NADPH + fad; involved in vitamin b6 degradation Registry number: EC 1.4.12.- (26 Jun 1999) |
| 5-pyridoxolactonase | <enzyme> From arthrobacter cr-7; hydrolyzes 5-pyridoxolactone to 5-pyridoxic acid; involved in vitamin b6 degradation Registry number: EC 3.1.1.- (26 Jun 1999) |
| 5-pyrrolidone-2-carboxylic acid | A keto derivative of proline that is formed nonenzymatically from glutamate, glutamine, and gamma-glutamylated peptides; it is also produced by the action of gamma-glutamylcyclotransferase; elevated levels of 5-oxoproline are often associated with problems of glutamine or glutathione metabolism. Synonym: 5-pyrrolidone-2-carboxylic acid, pyroglutamic acid, pyrrolidone-5-carboxylate. (05 Mar 2000) |
| 5-trifluoromethyldeoxyuridine | A pyrimidine analogue used topically in the treatment of herpes simplex keratitis. (05 Mar 2000) |
| 5-year relative survival rate | <statistics> The likelihood that a patient will not die from causes associated with his or her cancer for at least 5 years after diagnosis. This is the standard many professionals use when determining someone a survivor of cancer. (16 Dec 1997) |
| 52Fe | Symbol for iron-52. (05 Mar 2000) |
| 55Fe | Symbol for iron-55. (05 Mar 2000) |
| 59Fe | Symbol for iron-59. (05 Mar 2000) |
| 5alpha-androstane-3alpha-hydroxysteroid dehydrogenase | <enzyme> Converts dihydrotestosterone to 5alpha-androstan-3-alpha-17beta-diol Registry number: EC 1.1.1.- Synonym: 5alpha-ane-3alpha-hsdase (26 Jun 1999) |
| 5alpha-androstane-3beta-hydroxysteroid dehydrogenase | <enzyme> Converts dihydrotestosterone to 5alpha-androstan-3,17-beta-diol Registry number: EC 1.1.1.- Synonym: 5alpha-ane-3beta-hsdase (26 Jun 1999) |