Results 71 to 80 of about 87,813 (301)

Synthesis of N-Glycolylneuraminic Acid (Neu5Gc) and Its Glycosides. [PDF]

open access: yes, 2019
Sialic acids constitute a family of negatively charged structurally diverse monosaccharides that are commonly presented on the termini of glycans in higher animals and some microorganisms.
Chen, Xi   +2 more
core   +2 more sources

Stereoselective Ferrier‐Type O‐Glycosylation Enabled by Difluoromethylated Glycal Donors

open access: yesAdvanced Science, EarlyView.
A fluorine‐mediated stereoselective Ferrier‐type glycosylation is reported. Glycals are pre‐decorated with photo‐2‐difluoroalkylation and reacted with diverse acceptors to obtain exclusively α‐selective Ferrier rearrangement products. Abstract The effective construction of structurally homogeneous glycosides is requisite in oligosaccharide assembly and
You Zou   +5 more
wiley   +1 more source

Convergent synthesis of the tetrasaccharide repeating unit of the cell wall lipopolysaccharide of Escherichia coli O40

open access: yesBeilstein Journal of Organic Chemistry, 2012
A tetrasaccharide repeating unit corresponding to the cell-wall lipopolysaccharide of E. coli O40 was synthesized by using a convergent block glycosylation strategy.
Abhijit Sau, Anup Kumar Misra
doaj   +1 more source

Induced resistance of cucumbers to Fusarium wilt disease by synthesized N-acetylchitooligosaccharide analogues

open access: yes浙江大学学报. 农业与生命科学版, 2007
Induced resistance of cucumbers to Fusarium wilt disease by three synthesized oligosaccharides: β-1,3-N-acetyl-glucosamine disaccharide, β-1,3-N-acetyl-glucosamine trisaccharide and Lewisa trisaccharide was investigated. In radicle phase, after the roots
YAO Yan-ping   +4 more
doaj   +1 more source

Asymmetric trehalose analogues to probe disaccharide processing pathways in mycobacteria [PDF]

open access: yes, 2020
The uptake and metabolism of the disaccharide trehalose by Mycobacterium tuberculosis is essential for the virulence of this pathogen. Here we describe the chemoenzymatic synthesis of new azido-functionalised asymmetric trehalose probes that resist ...
Fullam, Elizabeth   +4 more
core   +1 more source

Streptococcal phosphotransferase system imports unsaturated hyaluronan disaccharide derived from host extracellular matrices.

open access: yesPLoS ONE, 2019
Certain bacterial species target the polysaccharide glycosaminoglycans (GAGs) of animal extracellular matrices for colonization and/or infection. GAGs such as hyaluronan and chondroitin sulfate consist of repeating disaccharide units of uronate and amino
Sayoko Oiki   +5 more
doaj   +1 more source

Synthesis of heparosan oligosaccharides by Pasteurella multocida PmHS2 single-action transferases [PDF]

open access: yes, 2012
Pasteurella multocida heparosan synthase PmHS2 is a dual action glycosyltransferase that catalyzes the polymerization of heparosan polymers in a non-processive manner.
Boeriu, C.G.   +3 more
core   +2 more sources

Lipopolysaccharide-specific acyloxyacyl hydrolase [PDF]

open access: yes, 1991
" An acyloxyacyl hydrolase from the human promyelocyte cell line HL-60 has been found to specifically hydrolyze fatty acids from their ester linkages to hydroxy groups of 3-hydroxyfatty acids, the latter being being bound in turn to lipopolysaccharide ...
Hall, Catherine L., Munford, Robert S.
core   +1 more source

Congenital sucrase-isomaltase deficiency presenting with failure to thrive, hypercalcemia, and nephrocalcinosis

open access: yesBMC Pediatrics, 2002
Background Disaccharide Intolerance Type I (Mendelian Interance in Man database: *222900) is a rare inborn error of metabolism resulting from mutation in sucrase-isomaltase (Enzyme Catalyzed 3.2.1.48).
Morriss Michael C   +8 more
doaj   +1 more source

Functional assessment of the genetic findings indicating mucopolysaccharidosis type II in the prenatal setting

open access: yesJIMD Reports, 2021
Mucopolysaccharidosis type II (MPS II) is a multi‐systemic disorder arising due to pathogenic variants in the gene located on chromosome Xq28 encoding the lysosomal enzyme, iduronate 2‐sulfatase (IDS).
Maria Fuller, David Ketteridge
doaj   +1 more source

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