Abstract:
:Poly-N-acetyllactosamine (poly-LacNAc) structures have been identified as important ligands for galectin-mediated cell adhesion to extra-cellular matrix (ECM) proteins. We here present the biofunctionalization of surfaces with poly-LacNAc structures and subsequent binding of ECM glycoproteins. First, we synthesized beta-GlcNAc glycosides carrying a linker for controlled coupling onto chemically functionalized surfaces. Then we produced poly-LacNAc structures with defined lengths using human beta1,4-galactosyltransferase-1 and beta1,3-N-acetylglucosaminyltransferase from Helicobacter pylori. These compounds were also used for kinetic characterization of glycosyltransferases and lectin binding assays. A mixture of poly-LacNAc-structures covalently coupled to functionalized microtiter plates were identified for best binding to our model galectin His(6)CGL2. We further demonstrate for the first time that these poly-LacNAc surfaces are suitable for further galectin-mediated binding of the ECM glycoproteins laminin and fibronectin. This new technology should facilitate cell adhesion to biofunctionalized surfaces by imitating the natural ECM microenvironment.
journal_name
Glycoconj Jjournal_title
Glycoconjugate journalauthors
Sauerzapfe B,Krenek K,Schmiedel J,Wakarchuk WW,Pelantová H,Kren V,Elling Ldoi
10.1007/s10719-008-9172-2subject
Has Abstractpub_date
2009-02-01 00:00:00pages
141-59issue
2eissn
0282-0080issn
1573-4986journal_volume
26pub_type
杂志文章abstract::Twenty different human and animal tissues were investigated for the presence of polyglycosylceramides. The glycolipids were isolated by peracetylation of dry tissue residues left after conventional lipid extraction, followed by extraction with chloroform and subsequent Sephadex LH-20, Sephadex LH-60 and silica gel chr...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1023/a:1018545922728
更新日期:1997-02-01 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
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
pub_type: 杂志文章
doi:10.1007/BF00731193
更新日期:1993-02-01 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::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
pub_type: 杂志文章
doi:10.1007/s10719-015-9638-y
更新日期:2016-06-01 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::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::In this study, the content, structure and residual percentages of glycosaminoglycans (GAGs) in the feces of seven breastfed newborns after ingesting a known amount of milk were studied. A comparison was made with five newborns fed with formula milk. Characterization of GAGs from milk and feces samples was performed ac...
journal_title:Glycoconjugate journal
pub_type: 临床试验,杂志文章
doi:10.1007/s10719-016-9655-5
更新日期:2016-04-01 00:00:00
abstract::The N-glycans from soluble extracts of ten pollens were examined. The pyridylaminated oligosaccharides derived from these sources were subject to gel filtration and reverse-phase HPLC, in conjunction with exoglycosidase digests, and in some cases matrix-assisted laser desorption-ionisation mass spectrometry. In compar...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1023/a:1006960401562
更新日期:1998-11-01 00:00:00
abstract::Cholera remains to be a global health problem without suitable vaccines for endemic control or outbreak relief. Here we describe a new parenteral vaccine based on neoglyco-conjugate of synthetic fragments of O-specific polysaccharide (O-SP) of Vibrio cholerae O1, serotype Ogawa. Hexa-, octa- and decasaccharides of the...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-013-9491-9
更新日期:2013-12-01 00:00:00
abstract::UDP-2-(2-ketopropyl)galactose (1) has been utilized as a valuable probe for profiling proteins modified by O-GlcNAc. In this work, we developed a protocol for efficient synthesis of 1. Thus, 2-methallylgalactose derivative 11, a synthetic intermediate for the compound 1, was prepared by stereoselective iodination and ...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-015-9581-y
更新日期:2015-10-01 00:00:00
abstract::The lectins Sambucus nigra agglutinin (SNA) and Ricinus communis agglutinin (RCA), specific for alpha2,6 linked sialylation, and terminal galactose respectively were used to study the occurrence, linkage and distribution of human immunoglobulin G (IgG) sialylation. SNA was shown to bind N-glycan alpha2,6-linked sialic...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1023/a:1007183915921
更新日期:1999-12-01 00:00:00
abstract::Type 1 ABO blood group antigens (peripheral core structure: Gal beta 1-3GlcNAc beta 1-R) are expressed mainly in endodermally-derived tissues, but are not synthesized in mesodermally-derived tissues. In the former tissues, H type 1 antigen is generated largely by alpha-2-L-fucosyltransferase encoded by secretor (Se) g...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/BF00731441
更新日期:1996-08-01 00:00:00
abstract::Human β-1,4-galactosyltransferase (β-1,4-GalT) V was shown to be involved in the biosynthesis of N-glycans, O-glycans and lactosylceramide (Lac-Cer) by in vitro studies. To determine its substrate specificity, enzymatic activity and its products were analyzed using mouse embryonic fibroblast (MEF) cells from β-1,4-Gal...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-010-9313-2
更新日期:2010-10-01 00:00:00
abstract::Syndecan-4 is a transmembrane heparan sulfate proteoglycan belonging to the syndecan family. Syndecan-4-deficient [(Synd4(-/-)] mice were produced to clarify the in vivo role of syndecan-4. Synd4(-/-) mice were more susceptible to kappa-carrageenan-induced nephropathy, and the placental labyrinth from the deficient em...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1023/A:1025308702966
更新日期:2002-05-01 00:00:00
abstract::Rotaviruses are the leading cause of childhood diarrhea. The entry of rotaviruses into the host cell is a complex process that includes several interactions of the outer layer proteins of the virus with different cell surface molecules. The fact that neuraminidase treatment of the cells, or preincubation of the virus ...
journal_title:Glycoconjugate journal
pub_type: 杂志文章,评审
doi:10.1007/s10719-006-5435-y
更新日期:2006-02-01 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
pub_type: 杂志文章
doi:10.1007/s10719-016-9659-1
更新日期:2016-04-01 00:00:00
abstract::Maackia amurensis haemagglutinin (MAH) is a leguminous lectin which preferentially binds to a cluster of sialylated O-linked carbohydrate chains (Konami Y, Yamamoto K. Osawa T, Irimura T (1994) FEBS Lett 342:334-38). In the present study a 950 bp cDNA clone encoding MAH was isolated from a cDNA library constructed fro...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/BF00731308
更新日期:1994-12-01 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::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::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
pub_type: 杂志文章
doi:10.1007/BF00731451
更新日期:1996-08-01 00:00:00
abstract::A straight forward synthesis of a heptasaccharide part of the cell-wall lipopolysaccharide of Mycobacterium gordonae strain 990, known to have antigenicity, has been achieved in excellent yield. Judicious choice of protecting groups in the intermediates played a significant role throughout the synthesis. Most of the i...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-008-9142-8
更新日期:2008-12-01 00:00:00
abstract::This review discusses the challenges facing research in 'functional glycomics' and the novel technologies that are being developed to advance the field. The structural complexity of glycans and glycoconjugates makes studies of both their structures and recognition difficult. However, these intricate structures can be ...
journal_title:Glycoconjugate journal
pub_type: 杂志文章,评审
doi:10.1007/s10719-015-9584-8
更新日期:2015-10-01 00:00:00
abstract::Full proton NMR assignments have been achieved for the alpha(1-3)-linked fucose residues contained in alkaline borohydride reduced keratan sulphate chains derived from bovine articular cartilage. This involved 500 MHz spectroscopy at 60 degrees C and included COSY and RELAYED-COSY determinations. ...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/BF00731641
更新日期:1991-02-01 00:00:00
abstract::Humans, in contrast to other mammals, do not synthesize N-glycolyl-neuraminic acid (Neu5Gc) due to a deletion in the gene (cmah) encoding the enzyme responsible for this conversion, the cytidine monophospho-N-acetyl-neuraminic acid hydroxylase (CMP-Neu5Ac hydroxylase). The detection of considerable amounts of Neu5Gc-s...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-013-9473-y
更新日期:2013-10-01 00:00:00
abstract::In aging and diabetes, glycation of collagen molecules leads to the formation of cross-links that could alter the surface charge on collagen fibrils, and hence affect the properties and correct functioning of a number of tissues. The electron-optical stain phosphotungstic acid (PTA) binds to positively charged amino a...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1023/a:1006928403140
更新日期:1998-08-01 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::Archaea are ubiquitous single-cell microorganisms that have often adapted to harsh conditions and play important roles in biogeochemical cycles with potential applications in biotechnology. Methanococcus maripaludis, a methane-producing archaeon, is motile through multiple archaella on its cell surface. The major stru...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-018-9845-4
更新日期:2018-12-01 00:00:00
abstract::Recently, we demonstrated that the human xylosyltransferase II (XT-II) has enzymatic activity and is able to catalyze the initial and rate-limiting step in the biosynthesis of glycosaminoglycans (GAGs) like chondroitin and dermatan sulfate, as well as heparan sulfate and heparin. Therefore, this enzyme also very likel...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-012-9439-5
更新日期:2013-04-01 00:00:00
abstract::Human Gb3/CD77 synthase (α1,4-galactosyltransferase) is the only known glycosyltransferase that changes acceptor specificity because of a point mutation. The enzyme, encoded by A4GALT locus, is responsible for biosynthesis of Gal(α1-4)Gal moiety in Gb3 (CD77, Pk antigen) and P1 glycosphingolipids. We showed before tha...
journal_title:Glycoconjugate journal
pub_type: 杂志文章
doi:10.1007/s10719-016-9716-9
更新日期:2016-12-01 00:00:00