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26O Llibertat 191026 60360 Dc (48979005808)
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6O or 6-O can refer to: *6O, IATA code for Air Satellite * 6-O-Methylguanine *6-O-methylnorlaudanosoline 5'-O-methyltransferase *6-O-arabinopyranosylglucopyranoside; see Vicianin *6-O-Methylesculetin; see Scopoletin *6-O-palmitoylascorbic acid; see Ascorbyl palmitate *6-O-(alpha-L-rhamnopyranosyl)-D-glucopyranose; see Rutinose *6-O-Alpha-D-Glucopyranosyl-D-Fructofuranose; see Isomaltulose *6-O-sulfation, a phenomenon occurring in Heparan sulfate See also *O6 (other) O6 or O-6 may refer to: * O6 star, a subclass of O-class stars * OceanAir IATA airline designator * O-6, a pay grade in the US uniformed services: ** Colonel in the Army, Marine Corps, Air Force, and Space Force ** Captain in the Navy, Coast Guar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Satellite
Air Satellite was an airline based in Baie-Comeau, Quebec, Canada. It operated scheduled, charter passenger and cargo services, as well as supplying aviation fuel, ground services and aircraft maintenance and repair. Its main base was Baie-Comeau Airport, with hubs at Rimouski Airport, Sept-Îles Airport, Havre Saint-Pierre Airport and Quebec Airport. History The airline was established in 1968 and started operations in May 1968. It was founded by Jean Fournier and Real Poulin as a flying school. The acquisition of other related companies led to the launch into passenger and cargo transport services. Air Satellite sustained a fatal accident on December 7, 1998, when its aircraft, a Britten-Norman BN2A Islander, fell into the St. Lawrence River one mile from the Baie-Comeau Airport, killing 7 and injuring 3 more. The crash was one cause for the airline's diminished success, which eventually led to its sale in 2007 to Exact Air. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
6-O-Methylguanine
6-''O''-Methylguanine is a derivative of the nucleobase guanine in which a methyl group is attached to the oxygen atom. It base-pairs to thymine rather than cytosine, causing a G:C to A:T transition in DNA. Formation 6-''O''-Methylguanine is formed in DNA by alkylation of the oxygen atom of guanine, most often by N-nitroso compounds (NOC) and sometimes due to methylation by other compounds such as endogenous S-adenosyl methionine. NOC are alkylating agents formed by the reaction of nitrite or other nitrogen oxides with secondary amines and N-alkylamides, yielding N-alkylnitrosamines and N-alkylnitrosamides. NOC are found in some foods (bacon, sausages, cheese) and tobacco smoke, and are formed in the gastrointestinal tract, especially after consumption of red meat. In addition, endogenous nitric oxide levels were found to be enhanced under chronic inflammatory conditions, and this could favor NOC formation in the large intestine. Repair and carcinogenicity Repair of 6- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
6-O-methylnorlaudanosoline 5'-O-methyltransferase
In enzymology, a 6-O-methylnorlaudanosoline 5'-O-methyltransferase () is an enzyme that catalyzes the chemical reaction :S-adenosyl-L-methionine + 6-O-methylnorlaudanosoline \rightleftharpoons S-adenosyl-L-homocysteine + nororientaline Thus, the two substrates of this enzyme are S-adenosyl methionine and 6-O-methylnorlaudanosoline, whereas its two products are S-adenosylhomocysteine and nororientaline. This enzyme belongs to the family of transferases, specifically those transferring one-carbon group methyltransferases. The systematic name of this enzyme class is S-adenosyl-L-methionine:6-O-methylnorlaudanosoline 5'-O-methyltransferase. This enzyme participates in alkaloid biosynthesis i Alkaloids are a class of basic, naturally occurring organic compounds that contain at least one nitrogen atom. This group also includes some related compounds with neutral and even weakly acidic properties. Some synthetic compounds of similar st .... References * EC 2.1.1 Enzy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vicianin
Vicianin is a cyanogenic disaccharide. The enzyme vicianin beta-glucosidase uses (''R'')-vicianin and H2O to produce mandelonitrile In organic chemistry, mandelonitrile is the nitrile of mandelic acid, or the cyanohydrin derivative of benzaldehyde. Small amounts of mandelonitrile occur in the pits of some fruits. Occurrence Mandelonitrile is the aglycone part of the cyan ... and vicianose. It is found in seeds of '' Vicia angustifolia''. References Cyanogenic glycosides {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scopoletin
Scopoletin is a coumarin. It found in the root of plants in the genus ''Scopolia'' such as ''Scopolia carniolica'' and ''Scopolia japonica'', in chicory, in '' Artemisia scoparia'', in the roots and leaves of stinging nettle (''Urtica dioica''), in the passion flower, in '' Brunfelsia'', in ''Viburnum prunifolium'', in ''Solanum nigrum'', in ''Datura metel'', in '' Mallotus resinosus'', or and in '' Kleinhovia hospita''. It can also be found in fenugreek, vinegar, some whiskies or in dandelion coffee. A similar coumarin is scoparone. Scopoletin is highly fluorescent when dissolved in DMSO or water and is regularly used as a fluorimetric assay for the detection of hydrogen peroxide in conjunction with horseradish peroxidase. When oxidized, its fluorescence is strongly suppressed. Chemistry Biosynthesis Like most phenylpropanoids, the biosynthetic precursor to scopoletin acid is 4-coumaroyl-CoA. Scopoletin is derived from 1,2-benzopyrones which is the core structure of couma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascorbyl Palmitate
Ascorbyl palmitate is an ester formed from ascorbic acid and palmitic acid creating a fat-soluble form of vitamin C. In addition to its use as a source of vitamin C, it is also used as an antioxidant food additive (E number E304). It is approved for use as a food additive in the EU, the U.S., Canada, Australia, and New Zealand.Australia New Zealand Food Standards Code Ascorbyl palmitate is also marketed as "vitamin C ester". It is synthesized by acylation vitamin C using different acyl donors. See also *Ascorbyl stearate *Vitamin C *Mineral ascorbates Mineral ascorbates are a group of salts of ascorbic acid (vitamin C). They are composed of a mineral cation bonded to ascorbate (the anion of ascorbic acid). Production Mineral ascorbates are powders manufactured by reacting ascorbic acid with ... References External links Bioavailability of Different Forms of Vitamin C (Ascorbic Acid)Information from the Linus Pauling Institute* {{HPD, 2088 Food antioxidants Fatty ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rutinose
Rutinose is the disaccharide also known as 6-''O''-α-L-rhamnose, rhamnosyl-D-glucose (C12H22O10) that is present in some flavonoid glycosides. It is prepared from rutin by hydrolysis with the enzyme rhamnodiastase. References * Disaccharides Deoxy sugars {{organic-compound-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isomaltulose
Isomaltulose is a disaccharide carbohydrate composed of glucose and fructose. The glucose and fructose are linked by an alpha-1,6-glycosidic bond (chemical name: 6-''0''-α-D-glucopyranosyl-D-fructose). Isomaltulose is present in honey and sugarcane extracts. It tastes similar to sucrose (table sugar) with half the sweetness. Isomaltulose, also known by the trade name Palatinose, is manufactured by enzymatic rearrangement (isomerization) of sucrose from beet sugar. The enzyme and its source were discovered in Germany in 1950, and since then its physiological role and physical properties have been studied extensively.Sentko, A. and Willibald-Ettle, I. (2012). "Isomaltulose." In: Sweeteners and Sugar Alternatives in Food Technology, 2nd Ed. Editors O'Donnell, K. & Kearsley, M.W. Wiley-Blackwell. Oxford, UK. Isomaltulose has been used as an alternative to sugar in foods in Japan since 1985, in the EU since 2005, in the US since 2006, and in Australia and New Zealand since 2007, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heparan Sulfate
Heparan sulfate (HS) is a linear polysaccharide found in all animal tissues. It occurs as a proteoglycan (HSPG, i.e. Heparan Sulfate ProteoGlycan) in which two or three HS chains are attached in close proximity to cell surface or extracellular matrix proteins. It is in this form that HS binds to a variety of protein ligands, including Wnt, and regulates a wide range of biological activities, including developmental processes, angiogenesis, blood coagulation, abolishing detachment activity by GrB (Granzyme B), and tumour metastasis. HS has also been shown to serve as cellular receptor for a number of viruses, including the respiratory syncytial virus. One study suggests that cellular heparan sulfate has a role in SARS-CoV-2 Infection, particularly when the virus attaches with ACE2. Proteoglycans The major cell membrane HSPGs are the transmembrane syndecans and the glycosylphosphatidylinositol (GPI) anchored glypicans. Other minor forms of membrane HSPG include betaglycan and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
