(n.) A white, crystalline sugar, C6H12O6, isomeric with dextrose, obtained by the decomposition of milk sugar, and also from certain gums. When oxidized it forms mucic acid. Called also lactose (though it is not lactose proper).
Example Sentences:
(1) These results demonstrate that increased availability of galactose, a high-affinity substrate for the enzyme, leads to increased aldose reductase messenger RNA, which suggests a role for aldose reductase in sugar metabolism in the lens.
(2) Isolated renal tubules and renal clearance techniques were used to characterize the renal handling of 2-deoxy-D-galactose (2-d-Gal) by the winter flounder (Pseudopleuronectes americanus).
(3) Jacalin preferentially bound to alpha-linked non-reducing D-galactose.
(4) The concentration dependences of response of frog tongue to D-fructose, D-glucose, and sucrose were almost the same, D-galactose, however, elicited a much larger response in comparison with the other sugars in the whole range of concentrations examined.
(5) This preparation was able to incorporate [(14)C]galactose from UDP-[(14)C]galactose into a water-soluble polysaccharide, which has a probable molecular weight of at least 4600.
(6) If an inhibitory concentration of Dgalactose was add 24 to 40 hr after mitogenic activation, rate of 3H-thymadine uptake at 72 hr was two to twenty times above the rate induced in cultures to which no galactose was added.
(7) Evidence for Golgi apparatus-associated processing of oligosaccharides in the ER was obtained by lectin-gold cytochemistry revealing the presence of the galactose (beta 1----4)N-acetylglucosamine sequence and sialic acid residues.
(8) The results are presented as effectiveness factor plots graphed as functions of bulk galactose and oxygen concentrations.
(9) Liver uptake was blocked by N-acetylgalactosamine but not by N-acetylglucosamine, which indicates that galactose-specific recognition sites are responsible for the LacFab-induced hepatic uptake.
(10) This method has been used to identify cells with biochemical lesions in the oxidation of propionate, galactose, hypoxanthine and pyruvate; it has allowed us to identify a new variant of methylmalonicaciduria; we believe it can be extended to include other metabolites and pathways.
(11) RCA-1, which is specific for D-galactose, showed patchy fluorescence on the basal and distal portions of the outer segments of the cones and rods, whereas neuraminidase-treated sections had uniform fluorescence throughout the tissues.
(12) It also hydrolyzes (Man)2-GlcNAc from the urine of an alpha-mannosidosis patient, 1,4-D-mannobiose and mannotriose isolated from ivory nut mannan, 4-O-beta-D-mannopyranosyl-L-rhamnose, 6-O-beta-D-mannopyranosyl-D-galactose and 4-O-beta-D-mannopyranosyl-N-acetylglucosamine.
(13) The presence of ethyleneglycol, galactose, glucose and fatty acids was shown by degradation studies.
(14) We now provide evidence strongly suggesting that the primary defect in Lec8 and Clone 13 cells is their inability to translocate UDP-galactose into the lumen of the Golgi apparatus.
(15) While the identity of this compound has not been established, it is suggested that the product is lactobionic acid in which the galactose moeity is in the furanose form.
(16) In addition other relevant carbohydrate components like ribose, mannose, galactose and glucose can be determined simultaneously.
(17) The O-polysaccharide was found to be a high molecular weight polymer of a repeating pentasaccharide unit composed of D-mannose, D-galactose, L-rhamnose, 2-acetamido-2-deoxy-D-glucose, and 2-acetamido-2,3-dideoxy-3-formamido-D-rhamnose residues (1:1:1:1:1) and had the structure: [formula: see text]
(18) The intensities of the chemotactic responses were found to vary in proportion to the concentration of galactose receptors.
(19) Whereas fructokinase I was induced specifically by growth of the organism on sucrose, fructokinase II was derepressed during growth on ribose, galactose, maltose, and lactulose.
(20) Since intestinal sodium absorption was so enhanced by an actively transported sugar, fructose and galactose perfusion fluids were prepared, and it was found that fructose was less well absorbed than glucose or galactose: in general, the results with these sugars were consistent with the sodium-dependent active transport of galactose and the passive transport of fructose, unrelated to sodium transport.
Raffinose
Definition:
(n.) A colorless crystalline slightly sweet substance obtained from the molasses of the sugar beet.
Example Sentences:
(1) Isolates of S. equisimilis in the African collection, though few, gave higher rates of lactose and raffinose fermentation, aesculin hydrolysis and positive alpha-galactosidase reactions than those from elsewhere.
(2) The fermentation pattern of the 34 strains with melibiose, raffinose, sucrose, salicin, and sorbitol allowed classification into 11 biotypes.
(3) The enhanced rapid identification method (RIM; Austin Biological Laboratories), a micromethod for the identification of Gardnerella vaginalis, is based on starch and raffinose fermentation and hippurate hydrolysis.
(4) They are negative for indole production, methyl red, H2S production on triple sugar-iron agar, urea hydrolysis, phenylalanine deamination, lysine decarboxylase, gelatin hydrolysis, and fermentation of adonitol, i-inositol, D-sorbitol, and raffinose.
(5) The extracellular fluid volume (ECFV), as raffinose space, and its content of Na, K and Ca were measured in anaesthetized dogs in acute experiments before and during the vascular response to intravenous injections and infusions of noradrenaline, adrenaline, isoprenaline and angiotensin.2.
(6) Based on these results, it is proposed that one tryptophan residue at the saccharide-binding site on each B-chain of CBH lies on the surface of the protein molecule and is located at a subsite which is accessible to a glucopyranoside moiety in the lactose molecule or a glycopyranosyl-fructofuranosyl moiety in the raffinose molecule, whereas such a residue is not present at the galactopyranoside-recognition site.
(7) The IMP2 gene of Saccharomyces cerevisiae is involved in the nucleo-mitochondrial control of maltose, galactose and raffinose utilization as shown by the inability of imp2 mutants to grow on these carbon sources in respiratory-deficient conditions or in the presence of ethidium bromide and erythromycin.
(8) Hyperosmotic cell shrinkage due to addition of 60 mM-NaCl or 120 mM-raffinose inhibited [3H]leucine incorporation into acid-precipitable material by 60 and 74% respectively, whereas hypo-osmotic cell swelling was ineffective.
(9) Thirteen atypical Yersinia enterocolitica isolates, all fermenting rhamnose, raffinose, and melibiose and utilizing sodium citrate within 24 to 48 h at 22 degrees C (Y.e.rh+), were examined biochemically-serologically, and by gas-liquid chromatography.
(10) Raffinose like sucrose is a betta-fructoside which can be hydrolyzed by yeast invertase (beta-fructoside which can be hydrolyzed by yeast invertase (beta-fructofuranoside fructohydrolase).
(11) These 12 strains differed, however, from other Y. enterocolitica previously described in the United States in that they fermented rhamnose and raffinose at 22 C, and failed to grow on Salmonella-Shigella and Hektoen-Enteric agars.
(12) The objective was to increase the effectiveness of RME by using a higher-molecular-weight osmoticum than mannitol, but avoiding the expense of raffinose; reducing the osmolality to a more physiological level; and including a colloid to make the solution suitable for continuous perfusion.
(13) The kinetics of growth in vitro of strains Yersinia enterocolitica, serovars 0:3, 0:5, 0:8 and 0:9, on culture media containing rhamnose, raffinose and sodium succinate and at different temperatures of cultivation (4 degrees, 25 degrees and 37 degrees C) was characterized.
(14) Repressed cells were plated on a raffinose--2-doexyglucose medium and the resistant cells growing up into colonies were tested for glucose non-repressible invertase and maltase.
(15) PGI2 synthesis is controlled by complex mechanisms including adrenoceptor-linked calcium influx and protein kinase C. Since organ preservation solutions may influence these mechanisms, we investigated the effect on in vitro PGI2 synthesis of cold storage of rat aortic rings in lactobionate-raffinose solution (LRS) and hypertonic citrate kidney preservation solution (KPS) on in vitro PGI2 synthesis.
(16) Replacement of glucose in M-K with the impermeable sugar, raffinose had a slight deleterious effect on corneal deturgescence in subsequent culture.
(17) At 37 degrees C D-raffinose activated the growth of the cells of serovars IV and V. The studies on the effect of different substrates on the growth of Yersinia pseudotuberculosis in a wide temperature range acquire great importance for the investigating of the process of infection, revealing some aspects of the microorganism-macroorganism relationship.
(18) dextranase production, colony morphology, cell or chain morphology, fermentation of sorbitol, lactose, galactose, raffinose, melibiose, or fructose, and production of surface protein antigen A (SpaA).
(19) Ingestion of other poorly absorbed solutes such as raffinose, sorbitol, xylitol, magnesium sulphate, and sodium sulphate also significantly depressed the absorption of L-rhamnose; in contrast, more efficiently absorbed solutes, such as sodium chloride, glucose, glycerol, and urea had little effect.
(20) Rat liver transplants were performed in order to assess the importance of the impermeant anion lactobionate and the trisaccharide raffinose on the effectiveness of a simplified variant of UW solution for liver preservation by simple cold storage.