| aldehyde | <chemistry> A carbon atom double-bonded to an oxygen, single-bonded to a hydrogen, and single-bonded to another chemical group (such as methane, benzene, another hydrogen, anything). The carbon oxygen double bond part is known as a carbonyl group (C=O). An example is acetaldehyde, which is a carbonyl group single-bonded to a hydrogen and single-bonded to a methane (a methyl group: CH3). (09 Oct 1997) |
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| aldehyde base | An obsolete term for an imide. (05 Mar 2000) |
| aldehyde decarbonylase | <enzyme> Catalyses the decarboxylation of aldehydes to form alkanes and co Registry number: EC 4.1.2.- (26 Jun 1999) |
| aldehyde dehydrogenase | <enzyme> An enzyme that oxidises an aldehyde in the presence of NAD+ and water to an acid and NADH. Before 1978, it was classified as EC 1.1.1.70. Chemical name: Aldehyde:NAD+ oxidoreductase Registry number: EC 1.2.1.3 (12 Dec 1998) |
| aldehyde dehydrogenase (acylating) | An oxidoreductase converting an aldehyde and CoA to acyl-CoA with NAD+ as H acceptor. (05 Mar 2000) |
| aldehyde dehydrogenase (NAD(P)+) | An oxidoreductase reversibly converting aldehydes to acids with NAD+ or NADP+ as H acceptor. (05 Mar 2000) |
| aldehyde dehydrogenase (NAD+) | An oxidoreductase reversibly converting aldehydes to acids with NADP+ as H acceptor. (05 Mar 2000) |
| aldehyde DPN transhydrogenase | aldehyde dehydrogenase (NAD+) |
| aldehyde ferredoxin oxidoreductase | <enzyme> Contains molybdopterin as the organic component of tungsten cofactor Registry number: EC 1.2.7.- (26 Jun 1999) |
| aldehyde fuchsin | A stain developed by Gomori, utilizing basic fuchsin paraldehyde and hydrochloric acid; it produces violet staining of elastic fibres, mast cell granules, gastric chief cells, beta cells of the pancreatic islets, and certain hypophyseal beta granules; other pituitary granules and cells stain in other colours. See: Gomori's aldehyde fuchsin stain. (05 Mar 2000) |
| aldehyde oxidase | <enzyme> Broad substrate specificity Registry number: EC 1.2.3.1 Synonym: n1-methylnicotinamide oxidase I, n-nitrosoreductase (26 Jun 1999) |
| aldehyde oxidoreductases | <enzyme> Registry number: EC 1.2. (12 Dec 1998) |
| aldehyde reaction | The reaction of the indole derivatives with aromatic aldehydes; e.g., tryptophan and p-dimethylaminobenzaldehyde in H2SO4 give a red-violet colour useful in assaying proteins for tryptophan content. Synonym: Ehrlich reaction. (05 Mar 2000) |
| aldehyde reductase | <enzyme> An enzyme that catalyses reversibly the oxidation of an aldose to an alditol. It possesses broad specificity for many aldoses. Chemical name: Alditol:NAD(P)+ 1-oxidoreductase Registry number: EC 1.1.1.21 (12 Dec 1998) |
| aldehyde TPN transhydrogenase | <enzyme> An enzyme that oxidises an aldehyde in the presence of NAD+ and water to an acid and NADH. Before 1978, it was classified as EC 1.1.1.70. Chemical name: Aldehyde:NAD+ oxidoreductase Registry number: EC 1.2.1.3 (12 Dec 1998) |