| 11 beta-HSD | 11 Beta-hydroxysteroid dehydrogenase |
|---|---|
| 11 beta-OHSD | 11 beta-Hydroxysteroid dehydrogenase |
| 11 beta-HSD-1 | 11 beta-Hydroxysteroid dehydrogenase type 1 |
| 11 beta-HSD2 | 11 beta-Hydroxysteroid dehydrogenase type 2 |
| 17 beta-HSD | 17 Beta-Hydroxysteroid dehydrogenase |
| beta, or beta-value | <radiobiology> Ratio of plasma kinetic pressure to magnetic-field pressure, proportional to the ratio of plasma kinetic energy density to magnetic field energy density. Beta is usually measured relative to the total, local field (loosely called beta toroidal), but sometimes the plasma pressure relative to only the poloidal component of the field (beta poloidal) or relative to some external field (like the maximum field at the magnetic coils) is more useful. There is also a normalised beta (beta_N) of interest when discussing the beta limit. (lots of help from Art Carlson with the above.) Because the cost of a reactor is strongly influenced by the strength of the magnetic field that must be provided, beta values are directly related to the economics of fusion power production. Beta is usually expressed as a percentage, with 5% generally believed to be the minimum value required for an economical fusion reactor. See: pressure, kinetic pressure, magnetic pressure, second stability. (09 Oct 1997) |
|---|---|
| UDP-GalNAc-beta-galactose beta 1,4-N-acetylgalactosaminyltransferase | <enzyme> Consider also EC 2.4.1.92 Registry number: EC 2.4.1.- Synonym: beta-1,4-n-acetylgalactosaminyltransferase, 4-galnactransferase, udp-n-acetylgalactosamine-beta-galactose beta 1,4-n-acetylgalactosaminyltransferase, (1-4)-n-acetyl-beta-d-galactosaminyltransferase, galnact-1 (26 Jun 1999) |
| 5 alpha-androstane-3 beta,17 beta-diol 6 alpha-hydroxylase | <enzyme> Requires NADPH, found in rat prostatic microsomes Registry number: EC 1.14.13.- Synonym: artdl 6 alpha-hydroxylase (26 Jun 1999) |
| 5 alpha-androstane 3 beta,17 beta-diol 7 alpha-hydroxylase | <enzyme> Requires NADPH, found in rat prostate microsomes Registry number: EC 1.14.13.- Synonym: artdl 7 alpha-hydroxylase (26 Jun 1999) |
| alpha-dextrin endo-1,6-alpha-glucosidase | <enzyme> An enzyme with action similar to that of isoamylase; it cleaves 1,6-alpha-glucosidic linkages in pullalan, amylopectin, and glycogen, and in alpha-and beta-amylase limit-dextrins of amylopectin and glycogen. Compare: isoamylase. Synonym: limit dextrinase, pullulanase, R enzyme. (05 Mar 2000) |
| alpha-d-glucosidase | A glucohydrolase removing terminal nonreducing 1,4-linked alpha-glucose residues by hydrolysis, yielding alpha-glucose; a deficiency of the lysosomal enzyme is associated with glycogen storage disease type II. There are at least five isozymes of maltase. Synonym: glucoinvertase. (05 Mar 2000) |
| alpha glucosidase | <enzyme> An enzyme which removes the last 1,4-linked alpha-D-glucose residue from the nonreducing end of a long chain (or polymer) of such residues, making an alpha-D-glucose molecule out of it in the process. (09 Oct 1997) |
| amylo-1,6-glucosidase | <enzyme> Catalyses endohydrolysis of 1,6-alpha-d-glucoside linkages at points of branching in chains of 1,4-linked alpha-d-glucose residues Registry number: EC 3.2.1.33 (26 Jun 1999) |
| amylopectin 1,6-glucosidase | Former name for an enzyme now known to be at least two enzymes, alpha-dextrin endo-glucanohydrolase and isoamylase. (05 Mar 2000) |
| maltobionate alpha-glucosidase | <enzyme> An intracellular enzyme capable of hydrolyzing maltobionic acid; from alkalophilic bacillus sp. N-1053 Registry number: EC 3.2.1.- Synonym: maltobionate alpha-d-glucohydrolase (26 Jun 1999) |
| glucan 1,4-alpha-glucosidase | <enzyme> An enzyme that catalyses the hydrolysis of terminal 1,4-linked alpha-d-glucose residues successively from non-reducing ends of polysaccharide chains with the release of beta-glucose. It is also able to hydrolyze 1,6-alpha-glucosidic bonds when the next bond in sequence is 1,4. Chemical name: 1,4-alpha-D-Glucan glucohydrolase Registry number: EC 3.2.1.3 (12 Dec 1998) |
| glucan-1,4-glucosidase | <enzyme> An enzyme which removes the last 1,4-linked alpha-D- glucose residue from the nonreducing end of a long chain (or polymer) of such residues, making abeta-D-glucose molecule out of it in the process. (09 Oct 1997) |
| glucosidase | <enzyme> An enzyme catalysing the release of glucose by hydrolysis of the glycosidic link in various B D glucosides, R B D glucose, where the group R may be alkyl, aryl, mono or oligosaccharide. Favoured source: almonds, from which enzyme is known as emulsin. (18 Nov 1997) |
| glucosidase inhibitor | Agents such as acarbose which reduce gastrointestinal absorption of carbohydrates. This group of drugs has been known popularly as "starch blockers". They lower plasma glucose levels and tend to cause weight loss. A limiting side effect is flatulence. (05 Mar 2000) |
| dextrin 6-alpha-d-glucosidase | <enzyme> Catalyses endohydrolysis of 1,6-alpha-d-glucoside linkages at points of branching in chains of 1,4-linked alpha-d-glucose residues Registry number: EC 3.2.1.33 (26 Jun 1999) |