| amide synthases | <enzyme> Enzymes that catalyze the joining of either ammonia or an amide with another molecule, in which the linkage is in the form of a carbon-nitrogen bond. Registry number: EC 6.3.1 (12 Dec 1998) |
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| amides | Organic compounds containing the -co-nh2 radical. Amides are derived from acids by replacement of -oh by -nh2 or from ammonia by the replacement of h by an acyl group. (12 Dec 1998) |
| amidin | <chemistry> Start modified by heat so as to become a transparent mass, like horn. It is soluble in cold water. Origin: Cf. F. Amidine, fr. Amido starch, fr. L. Amylum, Gr. Fine meal, neut. Of not ground at the mill, hence, of the finest meal; priv. +, mill. See Meal. Source: Websters Dictionary (01 Mar 1998) |
| amidine | The monovalent radical -C(NH)-NH2. (05 Mar 2000) |
| amidine-lyases | <enzyme> These enzymes catalyze the elimination of ammonia from amidines with the formation of a double bond. Registry number: EC 4.3.2 (12 Dec 1998) |
| amidinohydrolase | <enzyme> Enzymes cleaving linear amidines; e.g., arginase, creatinase. (05 Mar 2000) |
| amidinotransferase | <enzyme> A subclass of enzymes of the transferase class that catalyze the transfer of an amidino group from one compound to another. Registry number: EC 2.1.4. (12 Dec 1998) |
| amido | 1. <prefix> Containing, or derived from, amidogen, or denoting the amide radical, R-CO-NH-or R-SO2-NH-, etc. 2. <chemistry> Amido acid, an acid in which a portion of the nonacid hydrogen has been replaced by the amido group. The amido acids are both basic and acid. Amido group, amidogen, NH2. Origin: From Amide. Source: Websters Dictionary (20 Jun 2000) |
| amido black | <chemical> 4-amino-5-hydroxy-3-((4-nitrophenyl)azo)-6-(phenylazo)-2,7- naphthalenedisulfonic acid disodium salt. A dye used to stain proteins in electrophoretic techniques. It is used interchangeably with its acid form. Pharmacological action: dyes. Chemical name: 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-((4-nitrophenyl)azo)-6-(phenylazo)-, disodium salt (12 Dec 1998) |
| amido black 10B | An acid diazo dye, C12H14N6O9S2Na2, used as a connective tissue stain, for staining protein in paper chromatography, and in electrophoresis. (05 Mar 2000) |
| amidogen | <chemistry> A compound radical, NH2, not yet obtained in a separate state, which may be regarded as ammonia from the molecule of which one of its hydrogen atoms has been removed; called also the amido group, and in composition represented by the form amido. Origin: Amide + -gen. Source: Websters Dictionary (01 Mar 1998) |
| amidohydrolases | <enzyme> Registry number: EC 3.5. (12 Dec 1998) |
| amidonaphthol red | An azo dye, C18H13N3S2Na2, used in light and fluorescence microscopy as a real acid counterstain. Synonym: azophloxin. (05 Mar 2000) |
| amidophosphoribosyltransferase | <enzyme> An enzyme, involved in the early steps of purine nucleotide biosynthesis, that catalyses the formation of 5-phosphoribosylamine from glutamine and phosphoribosylpyrophosphate. Chemical name: 5-Phosphoribosylamine:pyrophosphate phospho-alpha-D-ribosyltransferase (glutamate-amidating) Registry number: EC 2.4.2.14 (12 Dec 1998) |
| amidopyrine | <chemical> A drug with analgesic, anti-inflammatory, and antipyretic properties but, owing to the risk of agranulocytosis, whose use is discouraged. Pharmacological action: non-steroidal anti-inflammatory agents. Chemical name: 3H-Pyrazol-3-one, 4-(dimethylamino)-1,2-dihydro-1,5-dimethyl-2-phenyl- (12 Dec 1998) |