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Structural studies of heparitin sulfates. 1975

A Linker, and P Hovingh

Heparitin sulfate fractions with a large range in sulfate content were subjected to degradation by Flavobacterium heparinase and by nitrous acid. The products obtained were fractionated by chromatography, characterized, and used to arrive at tentative structures for these complex polysaccharides. The heparitin sulfate chains examined appear to be composed of: 1. uninterrupted blocks of N-acetylglucosamine containing disaccharides; 2. larger blocks with a molecular weight range of 5000 to 6000 which include the N-acetyl block but do not contain heparinase sensitive linkages; 3. segments containing mainly areas where N-acetyl, N-sulfate and some disulfated units alternate in the chain. The size and arrangement of these polymer segments seem to vary with the sulfate content of a particular heparitin sulfate. For instance, the polysaccharides with the highest degree of sulfation do not appear to contain N-acetyl blocks of significant size.

UI MeSH Term Description Entries
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D008970 Molecular Weight The sum of the weight of all the atoms in a molecule. Molecular Weights,Weight, Molecular,Weights, Molecular
D009608 Nitrous Acid Nitrous acid (HNO2). A weak acid that exists only in solution. It can form water-soluble nitrites and stable esters. (From Merck Index, 11th ed) Acid, Nitrous
D009844 Oligosaccharides Carbohydrates consisting of between two (DISACCHARIDES) and ten MONOSACCHARIDES connected by either an alpha- or beta-glycosidic link. They are found throughout nature in both the free and bound form. Oligosaccharide
D011133 Polysaccharide-Lyases A group of carbon-oxygen lyases. These enzymes catalyze the breakage of a carbon-oxygen bond in polysaccharides leading to an unsaturated product and the elimination of an alcohol. EC 4.2.2. Polysaccharide Lyase,Polysaccharide-Lyase,Lyase, Polysaccharide,Polysaccharide Lyases
D002417 Cattle Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor. Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D002621 Chemistry A basic science concerned with the composition, structure, and properties of matter; and the reactions that occur between substances and the associated energy exchange.
D004187 Disaccharides Oligosaccharides containing two monosaccharide units linked by a glycosidic bond. Disaccharide
D005417 Flavobacterium A genus of gram-negative, aerobic, rod-shaped bacteria widely distributed in SOIL and WATER. Its organisms are also found in raw meats, MILK and other FOOD, hospital environments, and human clinical specimens. Some species are pathogenic in humans.
D005944 Glucosamine 2-Amino-2-Deoxyglucose,Dona,Dona S,Glucosamine Sulfate,Hespercorbin,Xicil,2 Amino 2 Deoxyglucose,Sulfate, Glucosamine

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