Abstract:
:Neutrophils participate in host protection and central to this process is the regulation of oxidative mechanisms. We purified by affinity chromatography the receptor for the GlcNAc-specific WGA from CD14+ CD16+ cell lysates (WGAr). The receptor is a 141 kDa glycoprotein constituted by two subunits of 78 and 63 kDa. It is mainly composed of Ser, Asx, and Gly, and, in a minor proportion, His, Cys, and Pro. Its glycan portion contains GlcNAc, Gal, and Man; NeuAc and GalNAc were identified in a minor proportion. The amino acid sequence of the WGA receptor was predicted from tryptic peptides by MALDI-TOF, both subunits showed homology with cytokeratin type II (26 and 29% for the 78 and 63 kDa subunits, respectively); the 78 kDa subunit showed also homology with the human transferrin receptor (24%). Antibodies against WGAr induce higher oxidative burst than WGA, determined by NBT reduction; however, this effect was inhibited (p < 0.05) with GlcNAc suggesting that WGAr participates as mediator in signal transduction in neutrophils.
journal_name
Glycoconj Jjournal_title
Glycoconjugate journalauthors
Solórzano C,Bouquelet S,Pereyra MA,Blanco-Favela F,Slomianny MC,Chavez R,Lascurain R,Zenteno E,Agundis Cdoi
10.1007/s10719-006-8635-6subject
Has Abstractpub_date
2006-11-01 00:00:00pages
591-8issue
7-8eissn
0282-0080issn
1573-4986journal_volume
23pub_type
杂志文章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
pub_type: 杂志文章
doi:10.1007/s10719-008-9141-9
更新日期:2008-12-01 00:00:00
abstract::Two Arabidopsis xylosyltransferases, designated RGXT1 and RGXT2, were recently expressed in Baculovirus transfected insect cells and by use of the free sugar assay shown to catalyse transfer of D-xylose from UDP-alpha-D-xylose to L-fucose and derivatives hereof. We have now examined expression of RGXT1 and RGXT2 in Pi...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-009-9242-0
更新日期:2009-12-01 00:00:00
abstract::The mechanism of interleukin-3 (IL-3) independent cell growth and of IL-3-associated ganglioside expression was analysed using the IL-3 dependent murine myelogenous leukaemia cell line NFS60-I7 and IL-3 gene-transfected sublines. The transfected cell lines showed autonomous cell growth, tumorigenicity, and IL-3 associ...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/BF00731500
更新日期:1996-04-01 00:00:00
abstract::Chondroitin sulfate (CS) and dermatan sulfate (DS) were extracted and purified from skins or bones of salmon (Salmo salar), snakehead (Channa argus), monkfish (Lophius litulon) and skipjack tuna (Katsuwonus pelamis). Size, structural sequences and sulfate groups of oligosaccharides in the purified CS and DS could be c...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-016-9759-y
更新日期:2017-04-01 00:00:00
abstract::O-Glycopyranosyl-N-hydroxysuccinimides of glucose and lactose have been synthesized. Peracetylated sugars, acetobromo sugars and benzoylated thioethyl glycosides have been used as precursors. With boron trifluoride etherate in dichloromethane, peracetylated sugars gave predominantly the beta anomer. Trimethylsilyl tri...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/BF00780758
更新日期:1992-06-01 00:00:00
abstract::UDP-GlcNAc:alpha3-D-mannoside beta1,2- N -acetylglucosaminyltransferase I (GnTI; EC 2.4.1.101) is a Golgi-resident glycosyltransferase that is essential for the processing of oligomannose to hybrid and complex N-glycans in higher eukaryotes. The cDNA of Nicotiana tabacum GnTI has been cloned and characterised previous...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1023/B:GLYC.0000045099.29038.04
更新日期:2004-01-01 00:00:00
abstract::Altered glycosylation of plasma proteins has been directly implicated in the pathogenesis of rheumatoid arthritis (RA). The present study investigated the changes in the Concanavalin-A (Con-A)-bound plasma proteins in the RA patients in comparison to that of the healthy controls. Two proteins (MW approximately 32 kDa ...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-006-7922-6
更新日期:2006-05-01 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
pub_type: 杂志文章
doi:10.1023/a:1021159619373
更新日期:2001-10-01 00:00:00
abstract::A monoclonal antibody (mAb 8281) specific for the terminal beta-galactose (beta Gal) of glycosphingolipids (GSL) and glycoproteins was produced from mice immunized with lipid extract from fresh acute lymphocytic leukemia (ALL) cells. Immuno-thin layer chromatography (ITLC) and competition assays with purified neutral ...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/BF00731643
更新日期:1991-02-01 00:00:00
abstract::Altered glycosylation is a universal feature of cancer cells and altered glycans can help cancer cells escape immune surveillance, facilitate tumor invasion, and increase malignancy. The goal of this study was to identify specific glycoenzymes, which could distinguish prostate cancer cells from normal prostatic cells....
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-012-9428-8
更新日期:2012-10-01 00:00:00
abstract::Fractions were prepared from the water-soluble components of Aspergillus fumigatus mycelium either by lectin-affinity chromatography or salt precipitation. While they varied considerably in their amino-acid composition, each contained a preponderance of aspartic and glutamic acids. 13C-NMR spectroscopy of these fracti...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/BF01047892
更新日期:1989-01-01 00:00:00
abstract::Matrix proteoglycans (PGs) have shown promise as biomarker in malignancies. We employed agarose gel eletrophoresis, quantitative real- time reverse transcription-polymerase chain reaction and immunohistochemistry to evaluate the content of sulfated glicosaminoglycans (chondroitin sulfate and heparan sulfate) and expre...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-018-9815-x
更新日期:2018-04-01 00:00:00
abstract::Sulfated galactans (SGs) are highly anionic marine galactose-composed homopolysaccharides. Although their structures vary among species, their main features are conserved among phyla. Green algal SGs are quite heterogeneous, although preponderantly composed of 3-beta-D-Galp units. The red algal SGs (like agar and carr...
journal_title:Glycoconjugate journal
pub_type: 杂志文章,评审
doi:10.1007/s10719-009-9251-z
更新日期:2010-01-01 00:00:00
abstract::The sap-sucking homopteran insects, commonly known as aphids and leafhoppers are responsible for a huge amount of lost productivity of mustard, chickpea, cabbage, rice and many other important crops. Due to their unique feeding habits and ability to build up a huge population in a very short time, they are very diffic...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1023/B:GLYC.0000043288.72051.7c
更新日期:2004-01-01 00:00:00
abstract::N-acetylglucosaminyltransferase (GnT)-IV a is a key enzyme that catalyzes the formation of the GlcNAC β1-4 branch on the core structure of complex N-Glycans, which is the common substrate for other N-acetylglucosaminyltransferases, such as GnT-III and GnT-V. Our recent study indicates that the expression of GnT-IVa in...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-012-9414-1
更新日期:2012-08-01 00:00:00
abstract::Influenza virus neuraminidase inhibitors (NAIs), currently used as anti-influenza drugs, can lead to the appearance of drug-resistant variants. Resistance to NAIs appears due to mutations in the active site of the neuraminidase (NA) molecule that decrease the NA enzymatic activity and sometimes in the hemagglutinin (H...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-010-9280-7
更新日期:2010-04-01 00:00:00
abstract::We report the postnatal developmental profiles of N-acetylneuraminic acid cytidylyltransferase (EC 2.7.7.43) (CMP-Neu5Ac synthetase) in different rat tissues. This enzyme, which catalyses the activation of NeuAc to CMP-Neu5Ac, was detected in brain, kidney, heart, spleen, liver, stomach, intestine, lung, thymus, prost...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1023/a:1006940927639
更新日期:1998-03-01 00:00:00
abstract::Podocalyxin (PC) was first identified as a heavily sialylated transmembrane protein of glomerular podocytes. Recent studies suggest that PC is a remarkable glycoconjugate that acts as a universal glyco-carrier. The glycoforms of PC are responsible for multiple functions in normal tissue, human cancer cells, human embr...
journal_title:Glycoconjugate journal
pub_type: 杂志文章,评审
doi:10.1007/s10719-016-9757-0
更新日期:2017-04-01 00:00:00
abstract::In this work, we characterized chemically the N-acetyl-D-galactosamine specific lectin from Amaranthus leucocarpus syn hypocondriacus lectin (ALL). It is a dimeric glycoprotein composed by three isoforms with pl at 4.8, 4.9, and 5.2. Circular dichroism analysis indicated that the secondary structure of ALL contains 45...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1023/a:1013760915738
更新日期:2001-04-01 00:00:00
abstract::The structures of the branched capsular polysaccharides of group B streptococcus type III (GBSIIIPS) and Streptococcus pneumoniae type 14 (Pn14PS) are identical apart from the (α2→3)-linked sialic acid in the side chains of GBSIIIPS. The present study tries to determine the minimal epitope in GBSIIIPS, using both a pa...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-011-9354-1
更新日期:2011-12-01 00:00:00
abstract::Multidisciplinary approaches by a number of investigators have established that cell-surface carbohydrates are integral components of recognition systems regulating survival, migration, adhesion, growth and differentiation of various cells. Our own experience and contributions to this exciting field are described. We ...
journal_title:Glycoconjugate journal
pub_type: 传,历史文章,杂志文章
doi:10.1023/a:1011078627247
更新日期:2000-07-01 00:00:00
abstract::The rare N-unsubstituted glucosamine (GlcNH (3)(+)) residues in heparan sulfate (HS) have important biological and pathophysiological roles. However, it is difficult to prepare naturally-occuring, GlcNH(3)(+)-containing oligosaccharides from HS because of their low abundance, as well as the inherent problems in both e...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-011-9352-3
更新日期:2011-12-01 00:00:00
abstract::Over the last few years enormous interest has been shown in the structures of the glycan moieties of various parasite surface glycoconjugates. Structures have been determined for the glyco-components of glycosylphosphatidylinositol (GPI) protein membrane anchors, for asparagine-linked oligosaccharides, and for the gly...
journal_title:Glycoconjugate journal
pub_type: 杂志文章,评审
doi:10.1007/BF00769843
更新日期:1991-12-01 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
pub_type: 杂志文章
doi:10.1023/A:1024201824354
更新日期:2002-03-01 00:00:00
abstract::The structural diversity and localization of cell surface glycosphingolipids (GSLs), including gangliosides, in glycolipid-enriched microdomains (GEMs, also known as lipid rafts) render them ideally suited to play important roles in mediating intercellular recognition, interactions, adhesion, receptor function, and si...
journal_title:Glycoconjugate journal
pub_type: 杂志文章,评审
doi:10.1007/s10719-016-9719-6
更新日期:2017-12-01 00:00:00
abstract::To elucidate the mechanism underlying the hydrolysis of the GalNAcbeta1-->4Gal linkage in ganglioside GM2 [GalNAcbeta1-->4(NeuAcalpha2-->3)Galbeta1-->4Glcbeta1-->1' Cer] by beta-hexosaminidase A (Hex A) with GM2 activator protein, we designed and synthesized two kinds of GM2 linkage analogues-6'-NeuAc-GM2 and alpha-Ga...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-008-9117-9
更新日期:2008-10-01 00:00:00
abstract::Synthetic thioglycoside-analogs of gangliosides such as Neu5Ac alpha(2-S-6)Glc beta(1-1)Ceramide (1) and the GM3 analog Neu5Ac alpha(2-S-6)Gal beta(1-4)Glc beta(1-1)Ceramide (2), competitively inhibited GM3 hydrolysis by the sialidase of different subtypes of human and animal influenza viruses with an apparent Ki valu...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/BF01073378
更新日期:1990-01-01 00:00:00
abstract::Strongly reacting antibodies specific for defined mucin gene products are often directed against the mucin protein backbone of the heavily glycosylated serine/threonine rich regions. A prerequisite for the use of such antibodies is often the complete removal of the oligosaccharides from the protein. This paper describ...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1023/a:1006935227730
更新日期:1998-08-01 00:00:00
abstract::The conformational space of methyl 6-O-[(R)- and (S)-1-carboxyethyl]-alpha-D-galactopyranoside has been investigated. A grid search employing energy minimization at each grid point over the three major degrees of freedom, namely phi, psi and omega, identified low energy regions. The R-isomer shows five low energy conf...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1023/a:1018527129939
更新日期:1997-12-01 00:00:00
abstract::Transmembrane signaling requires modular interactions between signaling proteins, phosphorylation or dephosphorylation of the interacting protein partners and temporary elaboration of supramolecular structures, to convey the molecular information from the cell surface to the nucleus. Such signaling complexes at the pl...
journal_title:Glycoconjugate journal
pub_type: 杂志文章,评审
doi:10.1023/a:1026585006064
更新日期:2000-03-01 00:00:00