Ye Kun Yang,Ming Hua Chiu,Cheng Wei Gao,Rui Lin Nie,Yang Lu,Qi Tai Zheng.The Novel Structure of a Disaccharide Derivative from Hemsleya amabilis. Tetrahedron . 2000Yang Y K, Chiu M H, Gao C W, et al. The novel structure of a disaccharide derivative from Hemsleya amabilis [J]. ...
LpxB is a glycosyltransferase in the Raetz (lipid A synthesis) pathway that catalyzes nucleophilic attack of the 6′-hydroxyl of lipid X (1) on the anomeric carbon of UDP-diacyl-glucosamine (UDP-DAG) (2) to form β(1–6)-tetraacyl-disaccharide 1-phosphate (lipid A disaccharide) (3) (...
Acid hydrolysis of asterosaponin A afforded a crystalline 6-deoxyglucobiose, whose structure has been established as O-(6-deoxy-±-d-glucopyranosyl)-(14)-6-deoxy-d-glucose. This is the first isolation of a 6-deoxyglucobiose. Its formation as a hydrolytic fragment of asterosaponin A ...
as disaccharides are the smallest type of oligosaccharides, and a large number of these compounds, have been reported to exhibit physiological activity 3. 综述的目的:关注DSPs酶的催化部份;结构-功能的关系;酶的合成;酶的工程化>> C. 综述二糖磷酸化酶>> Overview of disaccharide phosphorylases 1. 广...
Simple sugars consist of monosaccharides and disaccharides. Saccharides are the basic building block of carbohydrates and consist of a carbon chain (in nature the chain typically forms a ring), with several aldehydes and ketones attached. So, what is a disaccharide? The disaccharide definition is ...
A new, nonreducing disaccharide, sarcobiose, has been isolated from the dried twigs of Sarcostemma brevistigma. On the basis of chemical and spectroscopic evidence and identification of its hydrolysis product, its structure has been established as 3,4-anhydro-2,6-dideoxy-β- d- lyxo-hexopyrano...
The disaccharide unit of the glomerular basement membrane has been studied in regard to its detailed structure and its linkage to the peptide portion.Graded acid hydrolysis of glycopeptides containing this unit resulted in a more rapid r... RG Spiro - 《Journal of Biological Chemistry》 被引量:...
cyclopentane then applied to the pyranose, furanose , and septanose rings. Concepts such as the anomeric effect are discussed. Topics of current interest, such as hydroxymethyl group and hydroxyl group rotation and disaccharide conformations are summarized. Physical methods for studying conformation are...
This threonine residue is O-glycosylated by a disaccharide comprised of N-acetylgalactosamine and galactose moieties [49]. The terminal galactose is linked to N-acetylgalactosamine which is directly linked through its anomeric carbon to the hydroxyl group of threonine. Since this first report, ...
There are three carrageenan types based on the position and quantity of sulfate groups on the disaccharide structures: kappa (κ), iota (ι), and lambda (λ) carrageenan [153]. In the food industry, kappa (κ) carrageenan is widely used, and the sulfate concentrations of the kappa (κ),...