Keto-D-fructose phthalazin-1-ylhydrazone/AFI1082040105 can be provided in Alfa Chemistry. We are dedicated to provide our customers the best products and services.
Monosaccharides (C-H2O)n, n , 3, are the simplest form of carbohydrates. They may be subcategorized as aldoses or ketoses, if the molecule contains an aldehyde or ketone functional groups respectively. Aldoses have a carbonyl group in the form of an aldehyde on the end of the carbon chain and ketoses have a ketone group somewhere along the sugar backbone. The simplest ketose is dihydroxyacetone (has no chiral centers) while the simplest aldose is glyceraldehyde, which can be found as either the L or D enantiomer. Monosaccharides may be further classified based on the number of carbon atoms as triose (n=3), tetrose (n=4), pentose (n=5), hexose (n=6), heptose (n=7), etc. For example, glucose is known as a aldohexose (a six carbon aldose) and ribose is considered an aldopentose (a five carbon aldose). Sugars have the ability to form cyclic compounds, typically five or six member heterocyclic rings. In addition, sugars can be reducing or non-reducing depending on whether a sugar has a carbonyl ...
The effects of twelve monosaccharides on the oxygen uptake of Krebs-2 ascites carcinoma cells were determined during prolonged incubation. Seven sugars were shown to inhibit respiration. The incubation periods required to induce inhibition were inversely related to the maximum rate of phosphorylation of each sugar by tumor hexokinase. Of these inhibiting sugars, the nonglycolyzable were 2-deoxyglucose, glucosone, and mannoheptulose; and the glycolyzable were glucose, mannose, fructose, and glucosamine. Glucosone, a slowly phosphorylated sugar of highest affinity to hexokinase, controlled the degree of inhibition and its time of onset when added to tumor cells in combination with 2-deoxyglucose or with each of the glycolyzable hexoses. The nonphosphorylated sugars, galactose, 3-o-methylglucose, l-sorbose, lyxose, and xylose, were found to be noninhibitory to respiration.. ...
0121] X is CH2, O, N--R1, or S, preferably O; R1 is H or C1-C3 alkyl; and Z is a bond, a monosaccharide, disaccharide, oligosaccharide, glycoprotein or glycolipid, preferably a sugar group, more preferably a sugar group selected from the monosaccharides, including aldoses and ketoses, and disaccharides, including those disaccharides described herein. Monosaccharide aldoses include monosaccharides such as aldotriose (D-glyceraldehyde, among others), aldotetroses (D-erythrose and D-Threose, among others), aldopentoses, (D-ribose, D-arabinose, D-xylose, D-lyxose, among others), aldohexoses (D-allose, D-altrose, D-Glucose, D-Mannose, D-gulose, D-idose, D-galactose and D-Talose, among others), and the monosaccharide ketoses include monosaccharides such as ketotriose (dihydroxyacetone, among others), ketotetrose (D-erythrulose, among others), ketopentose (D-ribulose and D-xylulose, among others), ketohexoses (D-Psicone, D-Fructose, D-Sorbose, D-Tagatose, among others), aminosugars, including ...
Carbohydrates are polyhydroxy aldoses, ketoses and their condensation products. Aldoses bear terminal aldehyde or -CHO group while ketoses have an internal ketone or -CO- group. Carbohydrate is a hydrate of carbon or Cn(…
Monosaccharides are simple sugars with only one sachharide unit. These cannot be hydrolysed into simpler forms. A monosaccharide containing an aldehydic group (-CHO) in its molecule is called aldose. The glucose and galactose are aldoses. A monosaccharide which contains a keto group (| C = O) in its molecule is called ketose. Fructose is a ketose.
Chemical Entities of Biological Interest (ChEBI) is a freely available dictionary of molecular entities focused on small chemical compounds.
The suffix -ose (/oʊz/ or /oʊs/) is used in biochemistry to form the names of sugars. This Latin suffix means "full of", "abounding in", "given to", or "like". Numerous systems exist to name specific sugars more descriptively. Monosaccharides, the simplest sugars, may be named according to the number of carbon atoms in each molecule of the sugar: pentose is a five-carbon monosaccharide, and hexose is a six-carbon monosaccharide. Aldehyde monosaccharides may be called aldoses; ketone monosaccharides may be called ketoses. Larger sugars such as disaccharides and polysaccharides can be named to reflect their qualities. Lactose, a disaccharide found in milk, gets its name from the Latin word for milk combined with the sugar suffix; its name means "milk sugar". The polysaccharide that makes up plant starch is named amylose, or "starch sugar"; see amyl. There are these theories about the origin of the -ose suffix:- Derived from glucose, an important hexose whose name came from Greek γλυκύς = ...
Contents. EC 5.3.1 Interconverting Aldoses and Ketoses. EC 5.3.2 Interconverting Keto- and Enol-Groups. EC 5.3.3 Transposing C=C Bonds. EC 5.3.4 Transposing S-S Bonds. EC 5.3.99 Other Intramolecular Oxidoreductases. ...
All non-terminal bonds are depicted as horizontal or vertical lines. The carbon chain is depicted vertically, with carbon atoms sometimes not shown and represented by the center of crossing lines (see figure below). The orientation of the carbon chain is so that the first carbon (C1) is at the top.[3] In an aldose, C1 is the carbon of the aldehyde group; in a ketose, C1 is the carbon closest to the ketone group, which is typically found at C2.[4] In a Fischer projection, all horizontal bonds are meant to be slanted toward the viewer. Molecules with a simple tetrahedral geometry can be easily rotated in space, so that this condition is met (see figures). For instance, a monosaccharide with three carbon atoms (triose), such as the D-Glyceraldehyde depicted above has a tetrahedral geometry, with C2 at its center, and can be rotated in space so that the carbon chain is vertical with C1 at the top, and the horizontal bonds connecting C2 with -H and -OH are both slanted toward the viewer. However, ...
Ketoses are the isomers of aldoses except that, with very few exceptions, the keto group appears at position 2. As a result, there is one less asymmetric center than in an aldose with the same number of carbons.. ...
Creative-Proteomics offer cas L-ribulose (L-erythro-pent-2-ulose). We are specialized in manufacturing Stabel Isotope Labeled Analytical Standard products.
Creative-Proteomics offer cas D-[1-13C]xylulose (D-[1-13C]threo-pent-2-ulose). We are specialized in manufacturing Stabel Isotope Labeled Analytical Standard products.
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Pyranose Oxidase antibody LS-C744693 is an unconjugated goat polyclonal antibody to Pyranose Oxidase from e. coli. It is reactive with bacteria and e. coli. Validated for ELISA, IP and WB.
D-arabino-3-Hexulose 6-phosphate was prepared by condensation of formaldehyde with ribulose 5-phosphate in the presence of 3-hexulose phosphate synthase from methane-grown Methylococcus capsulatus. The 3-hexulose phosphate was unstable in solutions of pH greater than 3, giving a mixture of products in which, after dephosphorylation, allulose and fructose were detected. A complete conversion of d-ribulose 5-phosphate and formaldehyde into d-fructose 6-phosphate was demonstrated in the presence of 3-hexulose phosphate synthase and phospho-3-hexuloisomerase (prepared from methane-grown M. capsulatus). d-Allulose 6-phosphate was prepared from d-allose by way of d-allose 6-phosphate. No evidence was found for its metabolism by extracts of M. capsulatus, thus eliminating it as an intermediate in the carbon assimilation process of this organism. A survey was made of the enzymes involved in the regeneration of pentose phosphate during C1 assimilation via a modified pentose phosphate cycle. On the basis ...
A suite of sugars and other polyhydroxylated compounds has been found in aqueous extracts of the Murchison meteorite matrix, leading to observational searches for sugar-related species. The simplest $\alpha$-hydroxy aldehyde, glycolaldehyde (CH$_2$OHCHO), was detected toward the hot core Sagittarius B2(N-LMH), but at much lower abundance than its structural isomers acetic acid (CH$_3$COOH) and methyl formate (CH$_3$OCHO). Searches for the 3C aldose sugar, glyceraldehyde (CH$_2$OHCHOHCHO), were not successful, but the 3C ketose sugar, dihydroxyacetone (CO(CH$_2$OH)$_2$) was detected in this source. Ketoses are much more stable than their aldose structural isomers, and so these results indicate that the relative stability of structural isomers may play a large role in their formation and/or survivability in the interstellar medium.\\ Both dimethyl carbonate ((CH$_3$O)$_2$CO) and methyl glycolate (CH$_3$OCOCH$_2$OH) are more stable than their 3C sugar structural isomers and would likely be created ...
Ive just analyzed some cornmeal and Dandelion Root to see what kind(s) of sugars they contain for a Biochem lab. I need to know what kind of sugar could be a disaccharide, reducing, and a ketose. Its NOT glucose, sucrose, maltose, fructose, sorbitol, galactose, or lactose. Any ideas? Please email, Ryan Radford rradford at direct.ca ...
The syntheses of azaMan-beta-(1--,6)-C-Glc (4), azaGlc-beta-(1--,6)-C-Glc (5), and azaGal-beta-(1--,6)-C-Glc (6) based upon double reductive amination of acetylenic carbohydrate-derived diketones is described. The required diketones are obtained by addition of the acetylenic sugar anion derived from dibromoolefin 7 to benzyl-protected mannopyranolactone, glucopyranolactone, or galactopyranolactone, followed by reduction of the ketose and oxidation of the resulting diol. Ensuing double reductive amination and hydrogenolysis affords the target compounds in reasonable to good yields. Enzyme inhibition tests show that neither of the three compounds 4, 5, and 6 inhibit beta-glycosidases, while moderate to good inhibitory activities were found on alpha-glycosidases, the most active being 6 (alpha-galactosidase: K-i = 0.092 mu M).. Keywords: carbohydrates ; aza sugars ; double reductive amination ; enzyme ; inhibitors ; glycosidase inhibitors ; Aza-c-disaccharides ; biological evaluation ; reductive ...
Catalyzes the transfer of a two-carbon ketol group from a ketose donor to an aldose acceptor, via a covalent intermediate with the cofactor thiamine pyrophosphate.
Looking for d-altro-2-heptulose? Find out information about d-altro-2-heptulose. A seven-carbon ketose sugar widely distributed in plants of the Crassulaceae family; a significant intermediary compound in the cyclic regeneration... Explanation of d-altro-2-heptulose
Buy Fructose-L-tryptophan (CAS 25020-15-9), an Amadori compound with the potential to alter cellular adhesion, from Santa Cruz. MF C17H22N2O7, MW 366.37
TY - JOUR. T1 - A new route for preparation of 5-deoxy-5-(hydroxyphosphinyl)-D-mannopyranose and -L-gulopyranose derivatives. AU - Hanaya, Tadashi. AU - Yamamoto, Hiroshi. PY - 2002/10/29. Y1 - 2002/10/29. N2 - Starting from methyl 2,3-O-isopropylidene-α-D-mannofuranoside (5), methyl 6-O-benzyl-2,3-O-isopropylidene-α-D-lyxo-hexofuranosid-5-ulose (12) was prepared in three steps. The addition reaction of dimethyl phosphonate to 12, followed by deoxygenation of 5-OH group, provided the 5-deoxy-5-dimethoxyphosphinyl-α-D-mannofuranoside derivative 15a and the β-L-gulofuranoside isomer 15b. Reduction of 15a and 15b with sodium dihydrobis(2-methoxyethoxy)aluminate, followed by the action of HCl and then H2O2, afforded the D-mannopyranose (17) and L-gulopyranose analog 21, each having a phosphinyl group in the hemiacetal ring. These were converted to the corresponding 1,2,3,4,6-penta-O-acetyl-5-methoxyphosphinyl derivatives 19 and 23, respectively, structures and conformations (4C1 or 1C4, resp.) ...
Nonenzymatic covalent adduction of glucose, or aldehydes derived from glucose or oxidation reactions, to proteins (glycation) has been proposed as a key factor in the vascular complications of diabetes. In conditions of chronic glucose elevation, alpha-dicarbonyl compounds, including glyoxal and methylglyoxal, are also present at elevated levels. These carbonyls react rapidly with nucleophilic groups on Lys and Arg side chains and the N-terminal amino group, to give poorly defined products, often called advanced glycation endproducts. These are present at elevated levels in tissue samples from people with diabetes and have been linked with disease development. As the thiol group of Cys is a powerful nucleophile, we hypothesized that adduction should occur rapidly and efficiently at Cys residues. It is shown here that Cys residues react with dicarbonyl compounds to give thiol-aldehyde adducts, which have been detected by electrospray ionization mass spectrometry. This process is accompanied by ...
Looking for online definition of 3-Deoxy-D-Manno-Octulosonate or what 3-Deoxy-D-Manno-Octulosonate stands for? 3-Deoxy-D-Manno-Octulosonate is listed in the Worlds largest and most authoritative dictionary database of abbreviations and acronyms
Furylglycolic acid (FA), a pseudoaromatic hydroxy-acid suitable for copolymerization with lactic acid, can be produced from glucose via enzymatically derived cortalcerone using a combination of Brønsted and Lewis acid catalysts. Cortalcerone is first converted to furylglyoxal hydrate (FH) over a Brønsted acid site (HCl or Al-containing betazeolite), and FH is subsequently converted to FA over a Lewis acid site (Sn-beta zeolite). Selectivity for conversion of FH to FA is as high as 80% at 12% conversion using tetrahydrofuran (THF) as a solvent at 358 K. Higher conversion of FH leads to FA-catalyzed degradation of FH and subsequent deactivation of the catalyst by the deposition of carbonaceous residues. The deactivated catalyst can be regenerated by calcination. Cortalcerone can be produced from 10% glucose solution using recombinant Escherichia coli strains expressing pyranose 2-oxidase and aldos-2-ulose dehydratase from the wood-decay fungus Phanerochaete chrysosporium BKM-F-1767. This ...
Ketohexokinase (KHK; fructokinase, E.C. 2.7.1.3) catalyzes the phosphorylation of the ketose sugar fructose to fructose-1-phosphate. A number of other furanose sugars can also act as KHK substrates (1). KHK activity is highest in the liver, followed by renal cortex and small intestine (2). Its primary role in these sites seems to be clearance of dietary fructose through a specialized pathway involving aldolase B and triokinase.. In other tissues, the role of KHK is not well defined but might be significant. In the lung, for example, fructokinase activity is demonstrable (3), and in insulin-deficient states, a modest level of fructose metabolism through fructose-1-phosphate is preserved, even when peripheral glucose utilization is significantly depressed (4). Metabolic labeling experiments also indicate a significant contribution of KHK to fructose metabolism in the parotid gland, as well as in the pancreatic islet (5).. One particular process in which KHK could also be involved is the modulation ...
Looking for Sedoheptulose? Find out information about Sedoheptulose. A seven-carbon ketose sugar widely distributed in plants of the Crassulaceae family; a significant intermediary compound in the cyclic regeneration... Explanation of Sedoheptulose
Methylglyoxal (MG), one of the uremic toxins, is a highly reactive alpha-dicarbonyl compound. Recent clinical studies have demonstrated the close associations of cognitive impairment (CI) with plasma MG levels and presence of kidney dysfunction. Therefore, the present study aims to examine whether MG is a direct causative substance for CI development. Eight-week-old male Sprague-Dawley (SD) rats were divided into two groups: control (n = 9) and MG group (n = 10; 0.5% MG in drinking water), and fed a normal diet for 12 months. Cognitive function was evaluated by two behavioral tests (object exploration test and radial-arm maze test) in early (4-6 months of age) and late phase (7-12 months of age). Serum MG was significantly elevated in the MG group (495.8 ± 38.1 vs. 244.8 ± 28.2 nM; p | 0.001) at the end of study. The groups did not differ in cognitive function during the course of study. No time-course differences were found in oxidative stress markers between the two groups, while, antioxidants such
Applications of the 1,3-dithiane procedure for the synthesis of branched-chain carbohydrates. L-Streptose, methyl β-D-hamameloside, methyl 2,3,6-trideoxy-2-C-(2-hydroxyacetyl)-α-L-threo-hexopyranosid-4-ulose, methyl 4-C-(2-benzoxyacetyl)-2,3,6-trideoxy-α-L-threo-hexopyranoside ...
Boc Sciences offers cas 18422-53-2 1,2:4,5-Di-O-isopropylidene-b-D-erythro-2,3-hexodiulo-2,6-pyranose in bulk,please inquire us to get a quote for 18422-53-2 1,2:4,5-Di-O-isopropylidene-b-D-erythro-2,3-hexodiulo-2,6-pyranose.
Cell structureCell envelopeBiosynthesis and degradation of surface polysaccharides and lipopolysaccharides3-deoxy-D-manno-octulosonate 8-phosphate phosphatase, YrbI family (TIGR01670; EC 3.1.3.45; HMM-score: 18.2) ...
1KC3: Variation on a theme of SDR. dTDP-6-deoxy-L- lyxo-4-hexulose reductase (RmlD) shows a new Mg2+-dependent dimerization mode.
Phospho-4EBP1 (Thr36, Thr45), eFluor 660, clone: V3NTY24, eBioscience™ 100 Tests; eFluor 660 Phospho-4EBP1 (Thr36, Thr45), eFluor 660, clone: V3NTY24,...
Catalyzes the ATP-dependent phosphorylation of the 3-deoxy-D-manno-octulosonic acid (Kdo) residue in Kdo-lipid IV(A) at the 4-OH position.
Accepted name: dTDP-4-dehydro-6-deoxyglucose reductase. Reaction: dTDP-α-D-fucopyranose + NAD(P)+ = dTDP-4-dehydro-6-deoxy-α-D-glucose + NAD(P)H + H+. For diagram of reaction click here.. Glossary: dTDP-4-dehydro-6-deoxy-α-D-glucose = dTDP-6-deoxy-α-D-xylo-hexopyranos-4-ulose = thymidine 5-[3-(6-deoxy-D-xylo-hexopyranosyl-4-ulose) diphosphate]. Other name(s): dTDP-4-keto-6-deoxyglucose reductase; dTDP-D-fucose:NADP+ oxidoreductase; Fcf1; dTDP-6-deoxy-D-xylo-hex-4-ulopyranose reductase. Systematic name: dTDP-α-D-fucopyranose:NAD(P)+ oxidoreductase. Comments: The enzymes from the Gram-negative bacteria Aggregatibacter actinomycetemcomitans and Escherichia coli O52 are involved in activation of fucose for incorporation into capsular polysaccharide O-antigens [1,3]. The enzyme from the Gram-positive bacterium Geobacillus tepidamans is involved in activation of fucose for incorporation into the organisms S-layer [2].The enzyme from Escherichia coli O52 has a higher catalytic efficiency with ...
The fructosamine assay is useful in monitoring the degree of glycemia over short-to-intermediate time frames (1-3 weeks). A fructosamine concentration greater than the established normal range is an indication of prolonged hyperglycemia of 1-3 weeks or longer. The higher the fructosamine value, the poorer the degree of glycemia control ...
The fructosamine assay is useful in monitoring the degree of glycemia over short-to-intermediate time frames (1-3 weeks). A fructosamine concentration greater than the established normal range is an indication of prolonged hyperglycemia of 1-3 weeks or longer. The higher the fructosamine value, the poorer the degree of glycemia control. ...
You are viewing an interactive 3D depiction of the molecule 3-o-(2-acetamido-2-deoxy-alpha-d-galactopyranosyl)-d-galactose (C14H25NO11) from the PQR.
De Placido, S., Gallo, C., De Laurentiis, M., Bisagni, G., Arpino, G., Sarobba, M. G., Riccardi, F., Russo, A., Del Mastro, L., Cogoni, A. A., Cognetti, F., Gori, S., Foglietta, J., Frassoldati, A., Amoroso, D., Laudadio, L., Moscetti, L., Montemurro, F., Verusio, C., Bernardo, A. & 209 others, Lorusso, V., Gravina, A., Moretti, G., Lauria, R., Lai, A., Mocerino, C., Rizzo, S., Nuzzo, F., Carlini, P., Perrone, F., Accurso, A., Agostara, B., Aieta, M., Alabiso, O., Alicicco, M. G., Amadori, D., Amaducci, L., Amiconi, G., Antuzzi, G., Ardine, M., Ardizzoia, A., Aversa, C., Badalamenti, G., Barni, S., Basurto, C., Berardi, R., Bergamasco, C., Bidoli, P., Bighin, C., Biondi, E., Bisagni, G., Boni, C., Borgonovo, K., Botta, M., Bravi, S., Bruzzi, P., Buono, G., Butera, A., Caldara, A., Candeloro, G., Cappelletti, C., Cardalesi, C., Carfora, E., Cariello, A., Carrozza, F., Cartenì, G., Caruso, M., Casadei, V., Casanova, C., Castori, L., Cavanna, L., Cavazzini, G., Cazzaniga, M., Chilelli, M., ...
De Placido, S., Gallo, C., De Laurentiis, M., Bisagni, G., Arpino, G., Sarobba, M. G., Riccardi, F., Russo, A., Del Mastro, L., Cogoni, A. A., Cognetti, F., Gori, S., Foglietta, J., Frassoldati, A., Amoroso, D., Laudadio, L., Moscetti, L., Montemurro, F., Verusio, C., Bernardo, A. & 209 others, Lorusso, V., Gravina, A., Moretti, G., Lauria, R., Lai, A., Mocerino, C., Rizzo, S., Nuzzo, F., Carlini, P., Perrone, F., Accurso, A., Agostara, B., Aieta, M., Alabiso, O., Alicicco, M. G., Amadori, D., Amaducci, L., Amiconi, G., Antuzzi, G., Ardine, M., Ardizzoia, A., Aversa, C., Badalamenti, G., Barni, S., Basurto, C., Berardi, R., Bergamasco, C., Bidoli, P., Bighin, C., Biondi, E., Bisagni, G., Boni, C., Borgonovo, K., Botta, M., Bravi, S., Bruzzi, P., Buono, G., Butera, A., Caldara, A., Candeloro, G., Cappelletti, C., Cardalesi, C., Carfora, E., Cariello, A., Carrozza, F., Cartenì, G., Caruso, M., Casadei, V., Casanova, C., Castori, L., Cavanna, L., Cavazzini, G., Cazzaniga, M., Chilelli, M., ...
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In topscore set #2, says that ,in glucose degradation, oxygen is not necessary for ATP synthesis. But, while studying this stuff, I always bumped into O2...
The following are the more stable anomers of the pyranose forms of d-glucose, d-mannose, and d-galactose: O HO HO OH OH O HO HO HO OH OH OH O HO HO OH OH -D-Glucopyranose (64% at equilibrium) -D-Mannopyranose (68% at equilibrium) -D-Galactopyranose (64% at equilibrium) OH On the basis of these empirical observations
2-Acetamido-2-deoxy-3-O-(2-O-sulfo-beta-D-gluco-4-enepyranosyluronic acid)-D-galactose,2na/AFI149368047 can be provided in Alfa Chemistry. We are dedicated to provide our customers the best products and services.
Describes how a fructosamine (glycated serum protein) test is used, when a fructosamine test is ordered, and what the results of a fructosamine test might mean
Fructosamine blood testing provides a measure of average blood sugar over several weeks. Nationwide affordable lab testing from Request A Test.
Microarray versus DGE analysis. (A) Overlap of unique and named genes shared among the 3 microarray platforms and genes detected by DGE. The pool of 14645 share