New ganglioside analogs that inhibit influenza virus sialidase.

abstract：:Blood group oligosaccharides are one of the most clinically important antigen families and they may also act as secondary ligands for bacterial toxins from Escherichia coli and Vibrio cholerae. Herein we report the synthesis of spacered (sp = CH2CH2CH2NH2) glycosides of A antigen {α-D-GalNAc-(l→3)-[α-L-Fuc-(l→2)]-β-D-...

journal_title：Glycoconjugate journal

authors： Karki G,Mishra VN,Mandal PK

更新日期：2016-02-01 00:00:00

abstract：:If we predict the host range of new or mutant influenza virus in advance, we are able to measure against pandemic human influenza immediately after the new virus emerges somewhere. Influenza viral hemagglutinin(HA)-sialoside receptor interaction is a target event for in silico chemical prediction studies about the vir...

journal_title：Glycoconjugate journal

authors： Sawada T,Hashimoto T,Tokiwa H,Suzuki T,Nakano H,Ishida H,Kiso M,Suzuki Y

更新日期：2008-12-01 00:00:00

abstract：:Mild alkaline hydrolysis of the glycophosphosphingolipids of the protozoan Leptomonas samueli liberated several phosphoinositol-containing oligosaccharides (PI-oligosaccharides), which were purified by high performance anion exchange chromatography. The oligosaccharides in the resulting four fractions were characteriz...

journal_title：Glycoconjugate journal

authors： Previato JO,Wait R,Jones C,Mendonça-Previato L

更新日期：1994-02-01 00:00:00

abstract：:UDP-GlcNAc:Man alpha 1-3R beta 1-2-N-acetylglucosaminyltransferase I (GlcNAc-T I; EC 2.4.1.101) catalyses the conversion of [Man alpha 1-6(Man alpha 1-3)Man alpha 1-6][Man alpha 1-3]Man beta-O-R to [Man alpha 1-6(Man alpha 1-3)Man alpha 1-6] [GlcNAc beta 1-2Man alpha 1-3]Man beta-O-R (R = 1-4GlcNAc beta 1-4GlcNAc- Asn...

journal_title：Glycoconjugate journal

authors： Reck F,Springer M,Meinjohanns E,Paulsen H,Brockhausen I,Schachter H

更新日期：1995-12-01 00:00:00

abstract：:Herein we describe a UPLC-FLD-based method for the quantification of the sialic acid content of red meat, using a synthetic neuraminic acid derivative as an internal standard. X-Gal-α-2,6-N-propionylneuraminic acid was synthesized via a chemoenzymatic pathway and its hydrolytic stability was characterized. Known quant...

journal_title：Glycoconjugate journal

authors： Yao HL,Conway LP,Wang MM,Huang K,Liu L,Voglmeir J

更新日期：2016-04-01 00:00:00

abstract：:Previous studies had established an over-expression of 9-O-acetylated sialoglycoproteins (Neu5,9Ac(2)-GPs) on lymphoblasts of childhood acute lymphoblastic leukaemia (ALL). Here, we report the discovery and characterization of sialate-O-acetyltransferase enzyme in ALL-cell lines and lymphoblasts from bone marrow of ch...

journal_title：Glycoconjugate journal

authors： Mandal C,Srinivasan GV,Chowdhury S,Chandra S,Mandal C,Schauer R,Mandal C

更新日期：2009-01-01 00:00:00

abstract：:Abnormal glycosylation of proteins is known to be either resultant or causative of a variety of diseases. This makes glycoproteins appealing targets as potential biomarkers and focal points of molecular studies on the development and progression of human ailment. To date, a majority of efforts in disease glycoproteomi...

journal_title：Glycoconjugate journal

authors： Schumacher KN,Dodds ED

更新日期：2016-06-01 00:00:00

abstract：:A new strategy for the fluorometric determination of glycosyltransferase activities is reported. The method involves dansyl chloride derivatization of the reduced form (pNH2phenyl) of a hydrophobic, aglycon moiety covalently linked to a number of acceptor substrates (pNO2phenyl). Focusing on the Golgi enzyme core 2 N-...

journal_title：Glycoconjugate journal

authors： Palmerini CA,Datti A,Vanderelst IE,Minuti L,Orlacchio A

更新日期：1996-08-01 00:00:00

abstract：:Non-acid and acid glycosphingolipids were isolated from feces of one litter of germ-free rats from day 17 to day 51. Quantitative and qualitative changes described for small intestine of conventional rats [Bouhours D, Bouhours J-F (1981) Biochem Biophys Res Commun 99:1384-89] were also found in the feces of these germ...

journal_title：Glycoconjugate journal

authors： Larson G,Midtvedt T

更新日期：1989-01-01 00:00:00

abstract：:The SewA385T mutation of the FUT2 gene was found to correlate with both the erthrocyte Le(a + b+) and/or salivary ABH partial-secretor phenotypes of Polynesians. Constructs with FUT1 and FUT2 wild type genes, and the FUT2 SewA385T, seG428A and seC571T mutated alleles, were cloned into pcDNAI, and expressed in COS-7 ce...

journal_title：Glycoconjugate journal

authors： Henry S,Mollicone R,Fernandez P,Samuelsson B,Oriol R,Larson G

更新日期：1996-12-01 00:00:00

abstract：:Jacalin and M. pomifera agglutinin are T-antigen specific lectins with alpha 4 beta 4 structures that show far greater micro-heterogeneity than plant lectins from other families, due to multiple genetic isoforms and post-translational processing. Electrospray mass spectrometry and combined liquid chromatography-electr...

journal_title：Glycoconjugate journal

authors： Young NM,Watson DC,Thibault P

更新日期：1995-04-01 00:00:00

abstract：:The modulation of GnT-V activity by signaling molecules in PI-3-K/PKB pathway in human hepatocarcinoma cell line 7721 was studied. GnT-V activity was determined after the transfection of sense or antisense cDNA of PKB into the cells, as well as the addition of activators, specific inhibitors, and the antibodies to the...

journal_title：Glycoconjugate journal

authors： Guo HB,Shen ZH,Huang CX,Ma J,Huang Y,Chen HL

更新日期：2000-05-01 00:00:00

abstract：:Alterations in cell membrane glycosylation play important role in oral carcinogenesis. The present study evaluated salivary sialylation changes i.e. total sialic acid (TSA), sialidase activity, linkage specific (α2-3 and α2-6) sialoproteins and sialyl transferase (ST) activity in controls, patients with oral precancer...

journal_title：Glycoconjugate journal

authors： Vajaria BN,Patel KR,Begum R,Patel JB,Shah FD,Joshi GM,Patel PS

更新日期：2014-12-01 00:00:00

abstract：:A major impediment in the analysis of glycosaminoglycans is the difficulty to cleave quantitatively the glycosidic bonds because of the stabilisation of glycosidic bonds and of the relative instability of the liberated constituents. This manuscript describes a modified procedure of methanolysis in the presence of bari...

journal_title：Glycoconjugate journal

authors： Zanetta JP,Timmerman P,Leroy Y

更新日期：1999-10-01 00:00:00

abstract：:Studying polysaccharide-protein interactions under physiological conditions by conventional techniques is challenging. Ideally, macromolecules could be followed by both in vitro spectroscopy experiments as well as in tissues using microscopy, to enable a proper comparison of results over these different scales but, of...

journal_title：Glycoconjugate journal

authors： Lima MA,Cavalheiro RP,M Viana G,Meneghetti MCZ,Rudd TR,Skidmore MA,Powell AK,Yates EA

更新日期：2017-06-01 00:00:00

abstract：:We have measured glycosyltransferase activities of SupT1 cells, a T-lymphoid cell line shown to react with autoantibodies in the sera of many HIV patients. Since considerable alpha-N-acetylgalactosaminyl-transferase and beta 1, 3 galactosyltransferase activities were found in SupT1 cells, at least the O-glycan core 1 ...

journal_title：Glycoconjugate journal

authors： Nakada H,Inoue M,Tanaka N,Wakamiya N,Yamashina I

更新日期：1995-06-01 00:00:00

abstract：:The carbohydrate determinants, sialyl Lewis A and sialyl Lewis X, which are frequently expressed on human cancer cells, serve as ligands for a cell adhesion molecule of the selectin family, E-selectin, which is expressed on vascular endothelial cells. These carbohydrate determinants are involved in the adhesion of can...

journal_title：Glycoconjugate journal

authors： Kannagi R

更新日期：1997-08-01 00:00:00

abstract：:Lubrication of mammalian joints is mediated by lubricin, a product of megakaryocyte stimulating factor gene (MSF; GenBank accession #U70136) expression. Lubricin (M(r) approximately 240 kDa) is a mucinous glycoprotein which is 50% (w/w) post-translationally modified with beta(1-3)Gal-GalNAc incompletely capped with Ne...

journal_title：Glycoconjugate journal

authors： Jay GD,Harris DA,Cha CJ

更新日期：2001-10-01 00:00:00

abstract：:Disialosyl globopentaosylceramide (DSGb5) is a ganglioside originally isolated from tissue extracts of renal cell carcinoma (RCC) with metastasis. Previous in vitro experiments have suggested that DSGb5 promotes metastasis by enhancing the migration of RCC cells and downregulating NK cell cytotoxicity against RCC cell...

journal_title：Glycoconjugate journal

authors： Itoh J,Ito A,Shimada S,Kawasaki Y,Kakoi N,Saito H,Mitsuzuka K,Watanabe M,Satoh M,Saito S,Arai Y

更新日期：2017-04-01 00:00:00

abstract：:Glycosphingolipids were prepared from pig lung and pooled into two fractions with (i) < or = 3 sugar residues, and (ii) > or = 3 sugar residues. Oligosaccharides were prepared and used for gas chromatography, gas chromatography/mass spectrometry and matrix-assisted laser desorption/ionization mass spectrometry. The gl...

journal_title：Glycoconjugate journal

authors： Bäcker AE,Thorbert S,Rakotonirainy O,Hallberg EC,Olling A,Gustavsson M,Samuelsson BE,Soussi B

更新日期：1999-01-01 00:00:00

abstract：:Blood group antigen-related oligosaccharides have been implicated in growth regulation, cell mobility control and adhesion; we are therefore interested in the localization of receptors for these oligosaccharides in tumour cells. Labelled neoglycoconjugates that carry synthetic sugar structures are suitable tools to de...

journal_title：Glycoconjugate journal

authors： Kayser K,Bovin NV,Zemlyanukhina TV,Donaldo-Jacinto S,Koopmann J,Gabius HJ

更新日期：1994-08-01 00:00:00

abstract：:UDP-GlcNAc:alpha6-D-mannoside beta1,2-N-acetylglucosaminyltransferase II (GnT II; EC 2.4.1.143) is a medial-Golgi resident enzyme that catalyses an essential step in the biosynthetic pathway leading from high mannose to complex N-linked oligosaccharides. Screening a cDNA library from Xenopus laevis ovary with a human ...

journal_title：Glycoconjugate journal

authors： Mucha J,Svoboda B,Kappel S,Strasser R,Bencur P,Fröhwein U,Schachter H,Mach L,Glössl J

更新日期：2002-03-01 00:00:00

abstract：:Glycosylation is a very important post-translational modification involved in various cellular processes, such as cell adhesion, signal transduction and immune response. Urine is a rich source of glycoproteins and attractive biological fluid for biomarker discovery, owing to its availability, ease of collection, and c...

journal_title：Glycoconjugate journal

authors： Kawahara R,Saad J,Angeli CB,Palmisano G

更新日期：2016-12-01 00:00:00

abstract：:The specificity of the sialic acid-binding lectin from ovine placenta was examined in detail by haemagglutination inhibition assays applying a panel of 32 synthetic sialic acid analogues. The carboxylic acid group is a prerequisite for the interaction with the lectin, the alpha-anomer of the methyl glycoside is only a...

journal_title：Glycoconjugate journal

authors： Troncoso MF,Iglesias MM,Isecke R,Todel CW,Brossmer R

更新日期：2000-10-01 00:00:00

abstract：:Glycans serve as important regulators of antibody activities and half-lives. IgE is the most heavily glycosylated antibody, but in comparison to other antibodies little is known about its glycan structure function relationships. We therefore describe the site specific IgE glycosylation from a patient with a novel hype...

journal_title：Glycoconjugate journal

authors： Wu G,Hitchen PG,Panico M,North SJ,Barbouche MR,Binet D,Morris HR,Dell A,Haslam SM

更新日期：2016-06-01 00:00:00

abstract：:In this report we present the enzymatic characterization of CMP-NeuAc:Gal beta 1-4GlcNAc-R alpha(2-3)-sialyltransferase from human placenta using placenta membranes as an enzyme preparation. This sialyltransferase is highly sensitive to detergents and prefers type 2 chain (Gal beta 1-4GlcNAc) over type 1 chain (Gal be...

journal_title：Glycoconjugate journal

authors： Nemansky M,van den Eijnden DH

更新日期：1993-02-01 00:00:00

abstract：:By employing a bovine UDP-N-acetylgalactosamine: polypeptide N-acetylgalactosaminyl transferase (O-GalNAc transferase) cDNA as a probe, we isolated four overlapping cDNAs from a porcine lung cDNA library. Both the nucleotide sequence of the porcine cDNA and the predicted primary structure of the protein (559 amino aci...

journal_title：Glycoconjugate journal

authors： Yoshida A,Hara T,Ikenaga H,Takeuchi M

更新日期：1995-12-01 00:00:00

abstract：:Our recent studies have revealed the existence of two distinct Gal: 3-O-sulfotransferases capable of acting on the C-3 position of galactose in a Core 2 branched structure, e.g., Galbeta1-->4GlcNAcbeta1-->6(Galbeta1-->3)GalNacalph a1-->OBenzyl as acceptor to give 3-O-sulfoGalbeta1-->4GlcNAcbeta1-->3(Galbeta1-->3)G alN...

journal_title：Glycoconjugate journal

authors： Jain RK,Piskorz CF,Chandrasekaran EV,Matta KL

更新日期：1998-10-01 00:00:00

abstract：:We analyzed surface glycoproteins of human natural killer (NK) cells by utilizing lectins. Among the lectins tested, wheat germ agglutinin (WGA) was found to bind preferentially to CD16(Leu11)-positive lymphocytes as determined by two-colour flow cytometry. Analysis of glycoproteins in the lysate prepared from NK cell...

journal_title：Glycoconjugate journal

authors： Harada K,Yamane H,Imai Y,Tsuji T,Toyoshima S,Osawa T

更新日期：1992-08-01 00:00:00

abstract：:Galectin-3 is a beta-galactoside-binding protein involved in immunomodulation, cell interactions, cancer progression, and pathogenesis of infectious organisms. We report the identification and characterization of galectin-3 in human semen. In the male reproductive tract, the approximately 30 kDa galectin-3 protein was...

journal_title：Glycoconjugate journal

authors： Jones JL,Saraswati S,Block AS,Lichti CF,Mahadevan M,Diekman AB

更新日期：2010-02-01 00:00:00