| asparaginase | <drug, enzyme> An enzyme that hydrolyses L asparagine to L aspartate and ammonia that is used as an antitumour agent especially against lymphosarcoma and lymphatic leukaemia. (18 Nov 1997) |
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| asparagine | <amino acid> Is a nonessential amino acid that was first isolated from sprouting soybeans. Structurally similar to aspartic acid, with an additional amino group on the main carbon skeleton, Asparaginine assists in the metabolic functioning of brain and nervous system cells. When the extra amino group is removed by the brain, the resulting aspartic acid acts as an excitatory transmitter. Aspartic acid has been used to help with fatigue and depression and may be a mild immune stimulant as well. In the body, removal of asparaginines extra amino group allows it to be used interchangeably with aspartic acid in basic protein building. It is easily supplied in normal diets and no toxic effects are known. (22 May 1997) |
| asparagine permease | <chemical> Has high homology with the family of basic and aromatic amino acid permeases found in both prokaryotes and eukaryotes; 497 amino acids, mw 37-54 kD; from salmonella enterica; genbank u04851 Synonym: l-asparagine permease, ansp gene product (26 Jun 1999) |
| asparagine synthetase | asparagine ligase |
| asparagine-N-glycosyltransferase | <enzyme> Involved in glycoprotein biosynthesis Registry number: EC 2.4.1.- (26 Jun 1999) |
| asparagine-oxo-acid aminotransferase | <enzyme> Consider also EC 2.6.1.45, serine-glyoxylate aminotransferase, which also acts on asparagine Registry number: EC 2.6.1.14 Synonym: asparagine transaminase (26 Jun 1999) |
| asparaginic acid | <amino acid> One of the twenty naturally occurring amino acids. Has the following chemical characteristics: pKa1 pKa2 pKa3 pI Water Solubility (30deg C)2.09-3.86 9.82 2.97 0.6 (09 Oct 1997) |
| asparaginyl | The aminoacyl radical of asparagine. (05 Mar 2000) |
| glutamin-(asparagin-)ase | <enzyme> Catalyses hydrolysis of both glutamine and asparagine with a ratio of glutaminase to asparaginase of 1.45:1.0 Registry number: EC 3.5.1.38 Synonym: l-glutaminase-l-asparaginase (26 Jun 1999) |
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