Results 121 to 130 of about 30,590 (168)

Globotriaosylceramide (Gb3) content in HeLa cells is correlated to Shiga toxin-induced cytotoxicity and Gb3 synthase expression

open access: yesBMB Reports, 2009
Globotriaosylceramide (Gb3) and globotetraosylceramide (Gb4) are the proposed functional receptors for Shiga toxin (Stx). To elucidate the effect of Gb3 content on Stx-induced cytotoxicity in HeLa cells, we cloned HeLa cells and determined the correlation between glycolipids content and Stx-induced cytotoxicity. The 29 HeLa cell clone (HLCC) lines used
Satoshi Ishii
exaly   +4 more sources

Enzymatic synthesis of Gb3 and iGb3 ceramides [PDF]

open access: yesCarbohydrate Research, 2010
Gb3 and iGb3 are physiologically important trihexosylceramides with a terminal alpha-d-Galp-(1-->4)-beta-d-Galp- and alpha-d-Galp-(1-->3)-beta-d-Galp sequence, respectively. In particular iGb3 is attracting considerable attention as it is believed to serve as a ligand for natural killer T cells. Whether or not iGb3 is present in humans and which enzyme
Norman J. Dovichi   +2 more
exaly   +3 more sources

Synthesis of an Aminooxy Derivative of the Trisaccharide Globotriose Gb3 [PDF]

open access: yesJournal of Carbohydrate Chemistry, 2014
The synthesis of α-aminooxy trisaccharide moiety [α-d-Gal-(1,4)-β-d-Gal-(1,4)-β-d-Glc-α-aminooxy], related to the cell surface globotriaosylceramide (Gb3) receptor of the B subunit of the AB5 Shiga toxin of Shigella dysenteriae, has been synthesized for the first time in 11 steps with a 15% overall isolated yield.
Peter R Andreana, Samir Ghosh
exaly   +3 more sources

Chemoenzymatic Syntheses of iGb3 and Gb3

Organic Letters, 2006
Efficient chemoenzymatic syntheses of iGb3 and Gb3 have been developed. Isoglobotrihexose and globotrihexose were enzymatically synthesized by a three-enzyme system in both solid and solution phases. Then iGb3 and Gb3 were chemically synthesized by coupling of the corresponding trisaccharides with lipid.
Qingjia, Yao   +4 more
openaire   +2 more sources

Transmembrane BAX Inhibitor Motif Containing (TMBIM) Family Proteins Perturbs a trans-Golgi Network Enzyme, Gb3 Synthase, and Reduces Gb3 Biosynthesis * [PDF]

open access: yesJournal of Biological Chemistry, 2010
Globotriaosylceramide (Gb3) is a well known receptor for Shiga toxin (Stx), produced by enterohemorrhagic Escherichia coli and Shigella dysenteriae. The expression of Gb3 also affects several diseases, including cancer metastasis and Fabry disease, which prompted us to look for factors involved in its metabolism.
Kiyotaka Nishikawa   +2 more
exaly   +3 more sources

Comparison of Total Lipid Composition in Gb3‐Positive and Gb3‐Deficient Burkitt's Lymphoma Cells

Journal of Liquid Chromatography & Related Technologies, 2005
Abstract Thin-layer chromatography was used to compare the glycolipid, phospholipid, and neutral lipid compositions of the globotriaosylceramide (Gb3)‐positive Burkitt's lymphoma Daudi cell line and the Gb3‐deficient Daudi‐derived VT500 cell line. Glycolipid compositions were determined by co‐migration of lipids with glycosphingolipid standards and ...
Mark Maloney   +3 more
openaire   +1 more source

Total synthesis of globotriaosylceramide (Gb3) and lysoglobotriaosylceramide (lysoGb3)

Carbohydrate Research, 1990
We have recently reported a highly efficient and stereocontrolled synthesis of globotriaosylceramide (Gb3, 1) in optically pure form. Key to our synthetic strategy was the implementation of the two-stage activation of thioglycosides for formation of the glycosidic bonds and the utilization of (2S, 3S, 4E)-2-azido-3-O-(tert-butyldimethylsilyl)-4 ...
K C, Nicolaou   +2 more
openaire   +2 more sources

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