| BAR | bariatrics; barometer, barometric; beta-adrenergic receptor |
|---|---|
| BARK | beta-adrenergic receptor kinase |
| BAS | balloon atrial septostomy; benzyl anti-serotinin; beta-adrenergic stimulation; boric acid solution |
| BELIR | beta-endorphin-like immunoreactivity |
| BETA | Biomedical Electronics Technicians Association |
| beta-farnesene synthase | <enzyme> Catalyses conversion of farnesyl diphosphate to beta-farnesene; genbank af024615 Registry number: EC 3.6.1.- (26 Jun 1999) |
|---|---|
| beta fibres | Nerve fibre's having conduction velocities of about 40 m/sec. (05 Mar 2000) |
| beta-fructofuranosidase | Beta-h-Fructosidase;an enzyme hydrolyzing beta-d-fructofuranosides and releasing free d-fructose; if the substrate is sucrose, the product is d-glucose plus d-fructose (invert sugar); invert sugar is more easily digestible than sucrose. Synonym: invertase, invertin, saccharase. (05 Mar 2000) |
| beta-galactanase | <enzyme> Appears around day 7 of embryo development of the mollusc pomacea sp; responsible for the degradation of acidic beta-galactan to galactose and di- and tri-galactosides; see also exo-1,4-beta-galactanase and endo-1,4-beta galactanase Registry number: EC 3.2.1.- (26 Jun 1999) |
| beta-galactosidase | <enzyme> A group of enzymes that catalyses the hydrolysis of terminal, non-reducing beta-d-galactose residues in beta-galactosides. Chemical name: beta-D-Galactoside galactohydrolase Registry number: EC 3.2.1.23 (12 Dec 1998) |
| beta-galactoside alpha-2,3-sialyltransferase | <enzyme> Transfers sialic acid residue from cmp-n-acetylneuraminic acid to an acceptor galactoside Registry number: EC 2.4.99.4 Synonym: alpha 2-3-sialyltransferase, cmp-neuac-galactoside (alpha 2-3)-sialyltransferase, cmp-angs-transferase, cmp n-acetylneuraminate-beta-galactoside alpha-2,3-sialyltransferase, cmpsialic acid beta-galactosyl-1-3-n-acetylgalactosaminide alpha 2-3-sialyltransferase, beta-d-galactoside 3-alpha-sialyltransferase, cmp-acetylneuraminate-galactoside (alpha 2-3)-sialyltransferase, asialofetuin sialyltransferase, gal beta1,3galnac alpha2,3-sialyltransferase, cmp-neu5ac-gal beta1-3galnac alpha-2,3-sialyltransferase, cmp-neu5ac-gal1-3galnac alpha-2,3-sialyltransferase, alpha-2,3-st(o) (26 Jun 1999) |
| beta-galactoside permease | <chemical> Chemical name: permease, beta-galactoside (26 Jun 1999) |
| beta-galactosyl(1-3)N-acetylglucosaminide alpha(2-3)-sialyltransferase | <enzyme> Found in rat liver golgi apparatus Registry number: EC 2.4.99.- Synonym: gal-1-3-glcnac-sialyltransferase (26 Jun 1999) |
| beta-galactosylceramidase | <enzyme> An enzyme that participates in the catabolism of certain ceramides; a deficiency of beta-galactosylceramidase is associated with Krabbe's disease. (05 Mar 2000) |
| beta-globulins | The serum globulins with an electrophoretic mobility in neutral or alkaline solutions intermediate between that of alpha-globulins and gamma-globulins. (12 Dec 1998) |
| beta-glucocerebrosidase | <enzyme> An enzyme that hydrolyzes beta-glucosides in cerebrosides; a deficiency of this enzyme results in Gaucher disease. (05 Mar 2000) |
| beta-glucosidase | <enzyme> An enzyme that catalyses the hydrolysis of terminal non-reducing residues in beta-d-glucosides with release of beta-glucose. Chemical name: beta-D-Glucoside glucohydrolase Registry number: EC 3.2.1.21 (12 Dec 1998) |
| beta-glucosyl-hydroxymethylcytosine-alpha-glucosyltransferase | <enzyme> Generates gentobiosyl groups on the hydroxymethylcytosine of phage t2 and t6 DNA Registry number: EC 2.4.1.- Synonym: b-glc-hmc-a-glucosyltransferase (26 Jun 1999) |
| beta granule | A granule of a beta cell. (05 Mar 2000) |
| beta-haemolytic streptococci | Those that produce active haemolysins (O and S) which cause a zone of clear haemolysis on the blood agar medium in the area of the colony; beta-haemolytic streptococci are divided into groups (A to O) on the basis of cell wall C carbohydrate (see Lancefield classification); Group A (in the strains pathogenic for man) comprises more than 50 types (designated by Arabic numerals) determined by cell wall M protein, which seems to be associated closely with virulence and is produced chiefly by strains with matt or mucoid colonies, in contrast to nonvirulent, glossy colony-producing strains; other surface protein antigens such as R and T (T substance), and the nucleoprotein fraction (P substance) seem to be of less importance. The more than 20 extracellular substances elaborated by strains of beta-haemolytic streptococci include erythrogenic toxin (elaborated only by lysogenic strains), deoxyribonuclease (streptodornase), haemolysins (streptolysins O and S), hyaluronidase, and streptokinase. Synonym: haemolytic streptococci. (05 Mar 2000) |