| ATP synthase | <enzyme> An enzyme that catalyses the conversion of phosphate and ADP into ATP during oxidativephosphorylation in mitochondriaand bacteria or photophosphorylationin chloroplasts. (09 Oct 1997) |
|---|---|
| ATP-corrinoid adenosyltransferase | <enzyme> Shares significant homology and functional similarity with btur of escherichia coli and cobo of pseudomonas denitrificans; do not confuse with product of coba gene of pseudomonas, which produces uroporphyrin-iii c-methyltransferase; 196 aa residues, mw 22-25 kD; genbank l08890 Registry number: EC 2.5.1.- Synonym: coba protein, coba gene product (26 Jun 1999) |
| ATP-dependent DNA strand transferase | <enzyme> From human cell nuclei; catalyses strand exchange between homologous DNA sequences; magnesium dependent, requires ATP hydrolysis Registry number: EC 2.7.7.- Synonym: ATP-dep-DNA-str trnsfase (26 Jun 1999) |
| ATP-diphosphatase | <enzyme> An enzyme that catalyses breakdown of ATP to AMP, usually extracted from plants, but aortic and placental forms have also been described. (18 Nov 1997) |
| ATP-monophosphatase | <enzyme> A group of enzymes which catalyze the hydrolysis of ATP coupled with another function such as transporting calcium across a membrane. These enzymes may be dependent on calcium, magnesium, anions, h+, or DNA. Chemical name: ATP phosphohydrolase Registry number: EC 3.6.1.3 (12 Dec 1998) |
| ATP-ubiquitin-dependent proteinase | <enzyme> A component of the cytosolic ubiquitin-dependent proteolysis system Registry number: EC 3.4.- Synonym: ucden (26 Jun 1999) |
| ATPase | <enzyme> An enzyme that hydrolyzes ATP into ADP and phosphate. (09 Oct 1997) |
| ATPD | Symbol indicating that a gas volume has been expressed as if it had been dried at the ambient temperature and pressure. (05 Mar 2000) |
| ATPS | Symbol indicating that a gas volume has been expressed as if it were saturated with water vapor at the ambient temperature and barometric pressure; the condition of an expired gas equilibrated in a spirometer. (05 Mar 2000) |
| atrabiliary | 1. Of or pertaining to atra bilis or black bile, a fluid formerly supposed to be produced by the kidneys. 2. Melancholic or hypohondriac; atrabilious; from the supposed predominance of black bile, to the influence of which the ancients attributed hypochondria, melancholy, and mania. <anatomy> Atrabiliary arteries, capsules, and veins, those pertaining to the kidney; called also renal arteries, capsules, and veins. Source: Websters Dictionary (01 Mar 1998) |
| atrabiliary capsule | See adrenal gland. (12 Dec 1998) |
| atractosylidic acid | The steroid aglycon and toxic principle of atractylic acid. Synonym: atractosylidic acid, atractylin. (05 Mar 2000) |
| atractylic acid | A highly poisonous steroid glycoside from Atractylis gummifera L. (Compositae), having a strychnine-like action that produces convulsions of a hypoglycaemic nature; the aglycon, atractyliginin, is combined with glucose and isovaleric acid, and is the toxic principle. Atractylic acid interferes with oxidative reactions, the citric acid cycle, and nerve conduction. (05 Mar 2000) |
| atractyligenin | The steroid aglycon and toxic principle of atractylic acid. Synonym: atractosylidic acid, atractylin. (05 Mar 2000) |
| atractylin | The steroid aglycon and toxic principle of atractylic acid. Synonym: atractosylidic acid, atractylin. (05 Mar 2000) |