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1. Compound ID: 1733
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a-L-Rhap-(1-3)-+
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-3)-a-D-GlcpNAc-(1-2)-b-D-Galp-(1-4)-b-D-Manp6(35%)Ac-(1-3)-b-D-Manp-(1-4)-b-D-GlcpA-(1- |
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Structure type: polymer chemical repeating unit
Compound class: O-polysaccharide, O-antigen
Contained glycoepitopes: IEDB_115136,IEDB_134623,IEDB_136044,IEDB_136105,IEDB_137340,IEDB_137472,IEDB_137485,IEDB_140630,IEDB_141794,IEDB_141807,IEDB_144983,IEDB_151531,IEDB_152206,IEDB_190606,IEDB_225177,IEDB_423153,IEDB_885823,IEDB_983930,SB_165,SB_166,SB_187,SB_195,SB_44,SB_7,SB_72,SB_88
The structure is contained in the following publication(s):
- Article ID: 535
Ovchinnikova OG, Kocharova NA, Backinowsky LV, Torzewska A, Shashkov AS, Knirel YA, Rozalski A "The structure of the O-polysaccharide from the lipopolysaccharide of Providencia stuartii O47" -
Carbohydrate Research 339(15) (2004) 2621-2626
The O-polysaccharide was obtained by mild acid degradation of the lipopolysaccharide of Providencia stuartii O47:H4, strain 3646/51. Studies by sugar and methylation analyses along with Smith degradation and 1H and 13C NMR spectroscopy, including two-dimensional 1H,1H COSY, TOCSY, ROESY and H-detected 1H,13C HSQC and HMBC experiments, showed that the polysaccharide has a branched hexasaccharide repeating unit with the following structure: [carbohydrate structure: see text]
Lipopolysaccharide, O-antigen, polysaccharide structure, Providencia stuartii
NCBI PubMed ID: 15476725Journal NLM ID: 0043535Publisher: Elsevier
Correspondence: olgao@hotmail.ru
Institutions: N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia, Department of Immunobiology of Bacteria, Institute of Microbiology and Immunology, University of Lodz, PL 90-237 Lodz, Poland
Methods: methylation, NMR-2D, NMR, sugar analysis, Smith degradation
- Article ID: 4589
Ovchinnikova OG, Rozalski A, Liu B, Knirel YA "O-Antigens of bacteria of the genus Providencia: structure, serology, genetics, and biosynthesis" -
Biochemistry (Moscow) 78(7) (2013) 798-817
The genus Providencia consists of eight species of opportunistic pathogenic enterobacteria that can cause enteric diseases and urinary tract infections. The existing combined serological classification scheme of three species, P. alcalifaciens, P. stuartii, and P. rustigianii, is based on the specificity of O-antigens (O-polysaccharides) and comprises 63 O-serogroups. Differences between serogroups are related to polymorphism at a specific genome locus, the O-antigen gene cluster, responsible for O-antigen biosynthesis. This review presents data on structures of 36 O-antigens of Providencia, many of which contain unusual monosaccharides and non-carbohydrate components. The structural data correlate with the immunospecificity of the O-antigens and enable substantiation on a molecular level of serological relationships within the genus Providencia and between strains of Providencia and bacteria of the genera Proteus, Escherichia, and Salmonella. Peculiar features of the O-antigen gene cluster organization in 10 Providencia serogroups and biosynthetic pathways of nucleotide precursors of specific monosaccharide components of the O-antigens also are discussed.
Lipopolysaccharide, biosynthesis, O-antigen, gene cluster, Providencia, serological specificity
NCBI PubMed ID: 24010842Publication DOI: 10.1134/S0006297913070110Journal NLM ID: 0376536Publisher: Nauka/Interperiodica
Correspondence: olga.ovchinnikova@gmail.com
Institutions: ND Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia, Department of Immunobiology of Bacteria, Institute of Microbiology, Biotechnology and Immunology, University of Lodz, PL 90-237 Lodz, Poland, TEDA School of Biological Sciences and Biotechnology, Nankai University, 23 Hongda Street, TEDA, 300457 Tianjin, P. R. China
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2. Compound ID: 1734
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a-L-Rhap-(1-3)-+
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-3)-a-D-GlcpNAc-(1-2)-b-D-Galp-(1-4)-b-D-Manp-(1-3)-b-D-Manp-(1-4)-b-D-GlcpA-(1- |
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Structure type: polymer chemical repeating unit
Compound class: O-polysaccharide
Contained glycoepitopes: IEDB_115136,IEDB_134623,IEDB_136044,IEDB_136105,IEDB_137340,IEDB_137472,IEDB_137485,IEDB_140630,IEDB_141794,IEDB_141807,IEDB_144983,IEDB_151531,IEDB_152206,IEDB_190606,IEDB_225177,IEDB_423153,IEDB_885823,IEDB_983930,SB_165,SB_166,SB_187,SB_195,SB_44,SB_7,SB_72,SB_88
The structure is contained in the following publication(s):
- Article ID: 535
Ovchinnikova OG, Kocharova NA, Backinowsky LV, Torzewska A, Shashkov AS, Knirel YA, Rozalski A "The structure of the O-polysaccharide from the lipopolysaccharide of Providencia stuartii O47" -
Carbohydrate Research 339(15) (2004) 2621-2626
The O-polysaccharide was obtained by mild acid degradation of the lipopolysaccharide of Providencia stuartii O47:H4, strain 3646/51. Studies by sugar and methylation analyses along with Smith degradation and 1H and 13C NMR spectroscopy, including two-dimensional 1H,1H COSY, TOCSY, ROESY and H-detected 1H,13C HSQC and HMBC experiments, showed that the polysaccharide has a branched hexasaccharide repeating unit with the following structure: [carbohydrate structure: see text]
Lipopolysaccharide, O-antigen, polysaccharide structure, Providencia stuartii
NCBI PubMed ID: 15476725Journal NLM ID: 0043535Publisher: Elsevier
Correspondence: olgao@hotmail.ru
Institutions: N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia, Department of Immunobiology of Bacteria, Institute of Microbiology and Immunology, University of Lodz, PL 90-237 Lodz, Poland
Methods: methylation, NMR-2D, NMR, sugar analysis, Smith degradation
- Article ID: 5461
Knirel YA, Naumenko OI, Senchenkova SN, Perepelov AV "Chemical methods for selective cleavage of glycosidic linkages in structural analysis of bacterial polysaccharides" -
Russian Chemical Reviews = Uspekhi Khimii 88(4) (2019) 406-424
This review is devoted to methods for the selective cleavage of glycosidic bonds. The mechanisms of reactions underlying these methods are considered and examples of their practical application in the structural analysis of bacterial polysaccharides are given. Specific methods for the selective cleavage of polysaccharides, remaining relevant for researchers, include the Smith degradation based on destruction of monosaccharides containing vicinal diol groups, dephosphorylation of phosphate-containing polysaccharides with hydrofluoric acid and the hydrolytic cleavage of glycosyl phosphate bonds in the latter compounds. Non-specific methods, including partial acid hydrolysis, acetolysis and solvolysis with anhydrous organic (CF3SO3H, MeSO3H, CF3CO2H) and inorganic (HF) acids do not make any specific demands on the composition and structure of the polysaccharide and are sensitive to its fine structural features. The review addesses the issue of stability of glycosidic bonds in various monosaccharides to reagents used for non-specific selective cleavage.
structural analysis, Bacterial polysaccharide, selective cleavage, glycosidic bond
Publication DOI: 10.1070/RCR4856Journal NLM ID: 0404506Publisher: London: Chemical Society
Correspondence: Yu.A. Knirel
Institutions: N.D. Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences
Methods: partial acid hydrolysis, HF solvolysis, acid hydrolysis, mild acid hydrolysis, alkaline degradation, b-elimination, Smith degradation, deamination, de-O-acetylation, HF treatment, reduction with NaBD4, triflic acid solvolysis, acetolysis, Li/ethylenediamine degradation, hydrazinolysis, reduction with NaBH4, mild acid degradation, trifluoroacetic acid solvolysis, partial solvolysis with trifluoroacetic acid, de-N-acetylation with hydrazine, part acid hydrolysis, HF solvolysis; published polymerization frame was shifted for conformity with other records.
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3. Compound ID: 2023
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R-Lac-(2-4)-b-D-Glcp-(1-4)-a-L-Rhap-(1-4)-a-D-GlcpA-(1-3)-+
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-3)-b-D-Galp-(1-4)-a-D-Manp-(1-3)-a-D-Galp-(1- |
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Structure type: polymer chemical repeating unit
Contained glycoepitopes: IEDB_115013,IEDB_115136,IEDB_130645,IEDB_130701,IEDB_134623,IEDB_136044,IEDB_136105,IEDB_136906,IEDB_137472,IEDB_140630,IEDB_141794,IEDB_142488,IEDB_144983,IEDB_146664,IEDB_149558,IEDB_151528,IEDB_152206,IEDB_190606,IEDB_225177,IEDB_433717,IEDB_885823,IEDB_918314,IEDB_983930,IEDB_983931,SB_165,SB_166,SB_187,SB_192,SB_195,SB_44,SB_67,SB_7,SB_72,SB_87,SB_88
The structure is contained in the following publication(s):
- Article ID: 620
Aucken HM, Wilkinson SG, Pitt TL "Re-evaluation of the serotypes of Serratia marcescens and separation into two schemes based on lipopolysaccharide (O) and capsular polysaccharide (K) antigens" -
Microbiology 144 (1998) 639-653
Chemical and serological analysis has revealed that many of the 29 O serotype reference strains of Serratia marcescens contain both neutral and acidic polysaccharides which correspond to LPS O antigens and capsular K antigens, respectively. New O and K antigen typing schemes have therefore been devised, based on the known chemical structures of the surface polysaccharides of the organism. These schemes were designed to allow the specific detection of these antigens on unknown strains using ELISAs. O antigens were detected using whole cells cultured in broth then autoclaved to remove capsular material, while K antigens were detected using formolized whole cells which had been cultured on glycerol agar to enhance capsule production. After testing with the 29 reference strains as well as 423 distinct clinical strains, it was apparent that different aspects of chemical structure were associated with different degrees of serological reactivity and the typing schemes were modified further to accommodate this. In general, the O antigen repeating unit structures were chemically simple with di- or trisaccharide backbones. Serological specificity was often provided solely by the presence or absence of an O-acetyl substituent, or a change in the linkage between two sugar residues. Five of the O serotypes in the new scheme were represented by 12 of the 29 reference strains, while three reference strains lacked O antigens altogether, resulting in the elimination of 10 of the original O types. In contrast, the K antigen repeating unit structures were more complex and chemically diverse, having at least four sugar residues. Three K types were each seen in two reference strains while 12 of the 29 reference strains were acapsular. Thus, the resulting schemes contain 19 O types and 14 K types and allow the definitive serotype identification of S. marcescens.
Lipopolysaccharide, antigen, LPS, structure, K-antigen, O-antigen, capsular polysaccharide, Serratia marcescens, Serratia, serotyping, O-serotype
NCBI PubMed ID: 9534235Journal NLM ID: 0376646Publisher: Washington, DC: Kluwer Academic/Plenum Publishers
Correspondence: haucken@phls.co.uk
Institutions: Laboratory of Hospital Infection, Central Public Health Laboratory, 61 Colindale Avenue, London NW9 5HT, UK, School of Chemistry, The University, Hull HU6 7RX, UK
Methods: NMR, SDS-PAGE, ELISA, chromatography, Quellung reaction, serum adsorption assays
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4. Compound ID: 2047
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a-D-GlcpA-(1-3)-+
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b-D-Glcp-(1-3)-a-L-Fucp-(1-6)-b-D-Galp-(1-4)-+
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b-D-Xylp-(1-4)-+ |
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b-D-Xylp-(1-4)-+ | |
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a-D-GlcpA-(1-3)-a-L-Fucp-(1-3)-b-D-Glcp-(1-3)-+ | b-D-Glcp-(1-3)-+
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-4)-a-D-GlcpA-(1-2)-a-D-GalpA-(1-2)-b-D-Manp-(1-4)-b-D-Galp-(1-2)-a-L-Rhap-(1- |
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Structure type: polymer chemical repeating unit
Compound class: CPS
Contained glycoepitopes: IEDB_114701,IEDB_115136,IEDB_134623,IEDB_136044,IEDB_136045,IEDB_136105,IEDB_137472,IEDB_137485,IEDB_140630,IEDB_141794,IEDB_142488,IEDB_142489,IEDB_144562,IEDB_144983,IEDB_146664,IEDB_152206,IEDB_152214,IEDB_167188,IEDB_174332,IEDB_174333,IEDB_190606,IEDB_225177,IEDB_885823,IEDB_983930,IEDB_983931,SB_165,SB_166,SB_187,SB_192,SB_195,SB_44,SB_7,SB_72,SB_86,SB_88
The structure is contained in the following publication(s):
- Article ID: 650
Gloaguen V, Morvan H, Hoffmann L, Plancke Y, Wieruszeski J, Lippens G, Strecker G "Capsular polysaccharide produced by the thermophilic cyanobacterium Mastigocladus laminosus: Structural study of an undecasaccharide obtained by lithium degradation" -
European Journal of Biochemistry 266 (1999) 762-770
The capsular polysaccharide produced by the thermophilic cyanobacterium Mastigocladus laminosus has been subjected to a specific degradation with lithium in ethylenediamine. The released undecasaccharide attached to one unit of tetrahydroxycyclopentanecarboxylic acid has been characterized by a combination of 2D nuclear magnetic resonance spectroscopy, mass spectrometry, monosaccharidic composition and linkage analyses. From the overlap of the structure of this oligosaccharide with previously identified di-, tri- and pentasaccharides released by mild acid hydrolysis, the capsular polysaccharide was deduced to have a pentadecasaccharide repeating unit with the following structure:
NMR, structure, exopolysaccharide, cyanobacterium, lithium degradation
NCBI PubMed ID: 10583369Journal NLM ID: 0107600Publisher: Oxford, UK: Blackwell Science Ltd. on behalf of the Federation of European Biochemical Societies
Correspondence: vgloaguen@unilim.fr
Institutions: Equipe de Glycobiologie Vegetale, Institut de Biotechnologie, Université de Limoges, Limoges, France, Cellule de Recherche en Environnement et Biotechnologies, CRP-Centre Universitaire, Luxembourg, Institut de Botanique, Universite de Liege, Liege, Belgium, Laboratoire de Chimie biologique, UMR 111 (CNRS), Universite des Sciences et Techniques Lille Flandres-Artois, France, Centre National de la Recherche Scientifique, URA 1309, Institut Pasteur de Lille, France
Methods: NMR-2D, NMR, mild acid hydrolysis, MS, Li/ethylenediamine degradation
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5. Compound ID: 2142
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b-D-Xylp-(1-4)-+
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b-D-Xylp-(1-4)-a-L-Fucp-(1-3)-b-D-Glcp-(1-3)-+
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b-D-Glcp-(1-3)-+ |
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b-D-Glcp-(1-3)-a-L-Fucp-(1-6)-b-D-Galp-(1-4)-b-D-Manp-(1-4)-b-D-Galp-(1-2)-a-L-Rhap-(1-4)-Subst-(?--/1,2,3,4-tetrahydroxycyclopentanecarboxylic acid/
Subst = 1,2,3,4-tetrahydroxycyclopentanecarboxylic acid = SMILES O=C(C1C(O)C(O){3}C(O){4}C1O)O |
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Structure type: oligomer
Aglycon: 1,2,3,4-tetrahydroxycyclopentanecarboxylic acid
Compound class: CPS
Contained glycoepitopes: IEDB_114701,IEDB_134623,IEDB_136044,IEDB_136045,IEDB_136105,IEDB_137472,IEDB_137485,IEDB_141794,IEDB_142488,IEDB_142489,IEDB_144562,IEDB_144983,IEDB_146664,IEDB_152206,IEDB_152214,IEDB_167188,IEDB_174332,IEDB_174333,IEDB_190606,IEDB_225177,IEDB_885823,IEDB_983930,IEDB_983931,SB_165,SB_166,SB_187,SB_192,SB_195,SB_44,SB_7,SB_72,SB_86,SB_88
The structure is contained in the following publication(s):
- Article ID: 650
Gloaguen V, Morvan H, Hoffmann L, Plancke Y, Wieruszeski J, Lippens G, Strecker G "Capsular polysaccharide produced by the thermophilic cyanobacterium Mastigocladus laminosus: Structural study of an undecasaccharide obtained by lithium degradation" -
European Journal of Biochemistry 266 (1999) 762-770
The capsular polysaccharide produced by the thermophilic cyanobacterium Mastigocladus laminosus has been subjected to a specific degradation with lithium in ethylenediamine. The released undecasaccharide attached to one unit of tetrahydroxycyclopentanecarboxylic acid has been characterized by a combination of 2D nuclear magnetic resonance spectroscopy, mass spectrometry, monosaccharidic composition and linkage analyses. From the overlap of the structure of this oligosaccharide with previously identified di-, tri- and pentasaccharides released by mild acid hydrolysis, the capsular polysaccharide was deduced to have a pentadecasaccharide repeating unit with the following structure:
NMR, structure, exopolysaccharide, cyanobacterium, lithium degradation
NCBI PubMed ID: 10583369Journal NLM ID: 0107600Publisher: Oxford, UK: Blackwell Science Ltd. on behalf of the Federation of European Biochemical Societies
Correspondence: vgloaguen@unilim.fr
Institutions: Equipe de Glycobiologie Vegetale, Institut de Biotechnologie, Université de Limoges, Limoges, France, Cellule de Recherche en Environnement et Biotechnologies, CRP-Centre Universitaire, Luxembourg, Institut de Botanique, Universite de Liege, Liege, Belgium, Laboratoire de Chimie biologique, UMR 111 (CNRS), Universite des Sciences et Techniques Lille Flandres-Artois, France, Centre National de la Recherche Scientifique, URA 1309, Institut Pasteur de Lille, France
Methods: NMR-2D, NMR, mild acid hydrolysis, MS, Li/ethylenediamine degradation
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6. Compound ID: 2364
Structure type: oligomer
Contained glycoepitopes: IEDB_130701,IEDB_134623,IEDB_136044,IEDB_137472,IEDB_137485,IEDB_141794,IEDB_142488,IEDB_144983,IEDB_146664,IEDB_152206,IEDB_190606,IEDB_433717,IEDB_983930,IEDB_983931,SB_165,SB_166,SB_187,SB_192,SB_195,SB_44,SB_67,SB_7,SB_72,SB_88
The structure is contained in the following publication(s):
- Article ID: 825
Ilg T, Craik D, Currie G, Multhaup G, Bacic A "Stage-specific proteophosphoglycan from Leishmania mexicana antastigotes - Structural characterization of novel mono-, di-, and triphosphorylated phosphodiester-linked oligosaccharides" -
Journal of Biological Chemistry 273(22) (1998) 13509-13523
Intracellular amastigotes of the protozoan parasite Leishmania mexicana secrete a macromolecular proteo-phosphoglycan (aPPG) into the phagolysosome of their host cell, the mammalian macrophage. The structures of aPPG glycans were analyzed by a combination of high pH anion exchange high pressure liquid chromatography, gas chromatography-mass spectrometry, enzymatic digestions, electrospray-mass spectrometry as well as 1H and 31P NMR spectroscopy. Some glycans are identical to oligosaccharides known from Leishmania mexicana promastigote lipophosphoglycan and secreted acid phosphatase. However, the majority of the aPPG glycans represent amastigote stage-specific and novel structures. These include neutral glycans ( [Glc(bl-3)(n=1-2)]Gal(bl-4)Man, Gal(bl-3)Gal(bl-4)Man, Gal(bl-3)Glc(bl-3)Gal(bl-4)Man ), several monophosphorylated glycans containing the conserved phosphodisaccharide backbone (R-3-[PO4-6-Gal] (bl-4)Man) but carrying stage-specific modifications ( R = Gal(bl-,[Glc(bl-3)(n=1-2)Glc(bl- ), and monophosphorylated aPPG tri- and tetrasaccharides that are uniquely phosphorylated on the terminal hexose ( PO4-6-Glc(bl-3)Gal(bl-4)Man, PO4-6-Glc(bl-3)Glc(bl-3)Gal(bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Gal(b1-4)Man ). In addition aPPG contains highly unusual di- and triphosphorylated glycans whose major species are PO4-6-Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(b1-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)[PO4-6-Gal](b1-4)Man, PO4-6-Gal(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, and PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man. These glycans are linked together by the conserved phosphodiester R-Man-(a1-PO4-6)-Gal-R or the novel phosphodiester R-Man-(a1-PO4-6)-Glc-R and are connected to Ser(P) of the protein backbone most likely via the linkage R-Man-(a1-PO4-Ser). The variety of stage-specific glycan structures in Leishmania mexicana aPPG suggests the presence of developmentally regulated amastigote glycosyl-transferases which may be potential anti-parasite drug targets.
oligosaccharide, structural, characterization, Oligosaccharides, leishmania
NCBI PubMed ID: 9593686Journal NLM ID: 2985121RPublisher: Baltimore, MD: American Society for Biochemistry and Molecular Biology
Correspondence: thomas.ilg@tuebingen.mpg.de
Institutions: Plant Cell Biology Research Centre, School of Botany, University of Melbourne, Victoria 3052, Australia, Walter and Eliza Hall Institute of Medical Research, P.O. Royal Melbourne Hospital, Victoria 3050, Australia, the Centre for Drug Design and Development, University of Queensland, Brisbane, Queensland 4072, Australia, Centre for Molecular Biology, Heidelberg, Germany
Methods: NMR-2D, GC-MS, ESI-MS, enzymatic digestion, HPAE-HPLC
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7. Compound ID: 2385
Structure type: oligomer
Contained glycoepitopes: IEDB_130701,IEDB_134623,IEDB_136044,IEDB_137472,IEDB_137485,IEDB_141794,IEDB_142488,IEDB_144983,IEDB_146664,IEDB_152206,IEDB_153543,IEDB_190606,IEDB_433717,IEDB_983930,IEDB_983931,SB_165,SB_166,SB_187,SB_192,SB_195,SB_44,SB_67,SB_7,SB_72,SB_88
The structure is contained in the following publication(s):
- Article ID: 825
Ilg T, Craik D, Currie G, Multhaup G, Bacic A "Stage-specific proteophosphoglycan from Leishmania mexicana antastigotes - Structural characterization of novel mono-, di-, and triphosphorylated phosphodiester-linked oligosaccharides" -
Journal of Biological Chemistry 273(22) (1998) 13509-13523
Intracellular amastigotes of the protozoan parasite Leishmania mexicana secrete a macromolecular proteo-phosphoglycan (aPPG) into the phagolysosome of their host cell, the mammalian macrophage. The structures of aPPG glycans were analyzed by a combination of high pH anion exchange high pressure liquid chromatography, gas chromatography-mass spectrometry, enzymatic digestions, electrospray-mass spectrometry as well as 1H and 31P NMR spectroscopy. Some glycans are identical to oligosaccharides known from Leishmania mexicana promastigote lipophosphoglycan and secreted acid phosphatase. However, the majority of the aPPG glycans represent amastigote stage-specific and novel structures. These include neutral glycans ( [Glc(bl-3)(n=1-2)]Gal(bl-4)Man, Gal(bl-3)Gal(bl-4)Man, Gal(bl-3)Glc(bl-3)Gal(bl-4)Man ), several monophosphorylated glycans containing the conserved phosphodisaccharide backbone (R-3-[PO4-6-Gal] (bl-4)Man) but carrying stage-specific modifications ( R = Gal(bl-,[Glc(bl-3)(n=1-2)Glc(bl- ), and monophosphorylated aPPG tri- and tetrasaccharides that are uniquely phosphorylated on the terminal hexose ( PO4-6-Glc(bl-3)Gal(bl-4)Man, PO4-6-Glc(bl-3)Glc(bl-3)Gal(bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Gal(b1-4)Man ). In addition aPPG contains highly unusual di- and triphosphorylated glycans whose major species are PO4-6-Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(b1-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)[PO4-6-Gal](b1-4)Man, PO4-6-Gal(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, and PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man. These glycans are linked together by the conserved phosphodiester R-Man-(a1-PO4-6)-Gal-R or the novel phosphodiester R-Man-(a1-PO4-6)-Glc-R and are connected to Ser(P) of the protein backbone most likely via the linkage R-Man-(a1-PO4-Ser). The variety of stage-specific glycan structures in Leishmania mexicana aPPG suggests the presence of developmentally regulated amastigote glycosyl-transferases which may be potential anti-parasite drug targets.
oligosaccharide, structural, characterization, Oligosaccharides, leishmania
NCBI PubMed ID: 9593686Journal NLM ID: 2985121RPublisher: Baltimore, MD: American Society for Biochemistry and Molecular Biology
Correspondence: thomas.ilg@tuebingen.mpg.de
Institutions: Plant Cell Biology Research Centre, School of Botany, University of Melbourne, Victoria 3052, Australia, Walter and Eliza Hall Institute of Medical Research, P.O. Royal Melbourne Hospital, Victoria 3050, Australia, the Centre for Drug Design and Development, University of Queensland, Brisbane, Queensland 4072, Australia, Centre for Molecular Biology, Heidelberg, Germany
Methods: NMR-2D, GC-MS, ESI-MS, enzymatic digestion, HPAE-HPLC
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8. Compound ID: 2386
Structure type: oligomer
Contained glycoepitopes: IEDB_130701,IEDB_134623,IEDB_136044,IEDB_137472,IEDB_137485,IEDB_141794,IEDB_144983,IEDB_152206,IEDB_190606,IEDB_433717,IEDB_983930,SB_165,SB_166,SB_187,SB_195,SB_44,SB_67,SB_7,SB_72,SB_88
The structure is contained in the following publication(s):
- Article ID: 825
Ilg T, Craik D, Currie G, Multhaup G, Bacic A "Stage-specific proteophosphoglycan from Leishmania mexicana antastigotes - Structural characterization of novel mono-, di-, and triphosphorylated phosphodiester-linked oligosaccharides" -
Journal of Biological Chemistry 273(22) (1998) 13509-13523
Intracellular amastigotes of the protozoan parasite Leishmania mexicana secrete a macromolecular proteo-phosphoglycan (aPPG) into the phagolysosome of their host cell, the mammalian macrophage. The structures of aPPG glycans were analyzed by a combination of high pH anion exchange high pressure liquid chromatography, gas chromatography-mass spectrometry, enzymatic digestions, electrospray-mass spectrometry as well as 1H and 31P NMR spectroscopy. Some glycans are identical to oligosaccharides known from Leishmania mexicana promastigote lipophosphoglycan and secreted acid phosphatase. However, the majority of the aPPG glycans represent amastigote stage-specific and novel structures. These include neutral glycans ( [Glc(bl-3)(n=1-2)]Gal(bl-4)Man, Gal(bl-3)Gal(bl-4)Man, Gal(bl-3)Glc(bl-3)Gal(bl-4)Man ), several monophosphorylated glycans containing the conserved phosphodisaccharide backbone (R-3-[PO4-6-Gal] (bl-4)Man) but carrying stage-specific modifications ( R = Gal(bl-,[Glc(bl-3)(n=1-2)Glc(bl- ), and monophosphorylated aPPG tri- and tetrasaccharides that are uniquely phosphorylated on the terminal hexose ( PO4-6-Glc(bl-3)Gal(bl-4)Man, PO4-6-Glc(bl-3)Glc(bl-3)Gal(bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Gal(b1-4)Man ). In addition aPPG contains highly unusual di- and triphosphorylated glycans whose major species are PO4-6-Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(b1-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)[PO4-6-Gal](b1-4)Man, PO4-6-Gal(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, and PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man. These glycans are linked together by the conserved phosphodiester R-Man-(a1-PO4-6)-Gal-R or the novel phosphodiester R-Man-(a1-PO4-6)-Glc-R and are connected to Ser(P) of the protein backbone most likely via the linkage R-Man-(a1-PO4-Ser). The variety of stage-specific glycan structures in Leishmania mexicana aPPG suggests the presence of developmentally regulated amastigote glycosyl-transferases which may be potential anti-parasite drug targets.
oligosaccharide, structural, characterization, Oligosaccharides, leishmania
NCBI PubMed ID: 9593686Journal NLM ID: 2985121RPublisher: Baltimore, MD: American Society for Biochemistry and Molecular Biology
Correspondence: thomas.ilg@tuebingen.mpg.de
Institutions: Plant Cell Biology Research Centre, School of Botany, University of Melbourne, Victoria 3052, Australia, Walter and Eliza Hall Institute of Medical Research, P.O. Royal Melbourne Hospital, Victoria 3050, Australia, the Centre for Drug Design and Development, University of Queensland, Brisbane, Queensland 4072, Australia, Centre for Molecular Biology, Heidelberg, Germany
Methods: NMR-2D, GC-MS, ESI-MS, enzymatic digestion, HPAE-HPLC
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9. Compound ID: 2387
Structure type: oligomer
Contained glycoepitopes: IEDB_130701,IEDB_134623,IEDB_136044,IEDB_137472,IEDB_137485,IEDB_141794,IEDB_142488,IEDB_144983,IEDB_146664,IEDB_152206,IEDB_190606,IEDB_433717,IEDB_983930,IEDB_983931,SB_165,SB_166,SB_187,SB_192,SB_195,SB_44,SB_67,SB_7,SB_72,SB_88
The structure is contained in the following publication(s):
- Article ID: 825
Ilg T, Craik D, Currie G, Multhaup G, Bacic A "Stage-specific proteophosphoglycan from Leishmania mexicana antastigotes - Structural characterization of novel mono-, di-, and triphosphorylated phosphodiester-linked oligosaccharides" -
Journal of Biological Chemistry 273(22) (1998) 13509-13523
Intracellular amastigotes of the protozoan parasite Leishmania mexicana secrete a macromolecular proteo-phosphoglycan (aPPG) into the phagolysosome of their host cell, the mammalian macrophage. The structures of aPPG glycans were analyzed by a combination of high pH anion exchange high pressure liquid chromatography, gas chromatography-mass spectrometry, enzymatic digestions, electrospray-mass spectrometry as well as 1H and 31P NMR spectroscopy. Some glycans are identical to oligosaccharides known from Leishmania mexicana promastigote lipophosphoglycan and secreted acid phosphatase. However, the majority of the aPPG glycans represent amastigote stage-specific and novel structures. These include neutral glycans ( [Glc(bl-3)(n=1-2)]Gal(bl-4)Man, Gal(bl-3)Gal(bl-4)Man, Gal(bl-3)Glc(bl-3)Gal(bl-4)Man ), several monophosphorylated glycans containing the conserved phosphodisaccharide backbone (R-3-[PO4-6-Gal] (bl-4)Man) but carrying stage-specific modifications ( R = Gal(bl-,[Glc(bl-3)(n=1-2)Glc(bl- ), and monophosphorylated aPPG tri- and tetrasaccharides that are uniquely phosphorylated on the terminal hexose ( PO4-6-Glc(bl-3)Gal(bl-4)Man, PO4-6-Glc(bl-3)Glc(bl-3)Gal(bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Gal(b1-4)Man ). In addition aPPG contains highly unusual di- and triphosphorylated glycans whose major species are PO4-6-Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(b1-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)[PO4-6-Gal](b1-4)Man, PO4-6-Gal(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, and PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man. These glycans are linked together by the conserved phosphodiester R-Man-(a1-PO4-6)-Gal-R or the novel phosphodiester R-Man-(a1-PO4-6)-Glc-R and are connected to Ser(P) of the protein backbone most likely via the linkage R-Man-(a1-PO4-Ser). The variety of stage-specific glycan structures in Leishmania mexicana aPPG suggests the presence of developmentally regulated amastigote glycosyl-transferases which may be potential anti-parasite drug targets.
oligosaccharide, structural, characterization, Oligosaccharides, leishmania
NCBI PubMed ID: 9593686Journal NLM ID: 2985121RPublisher: Baltimore, MD: American Society for Biochemistry and Molecular Biology
Correspondence: thomas.ilg@tuebingen.mpg.de
Institutions: Plant Cell Biology Research Centre, School of Botany, University of Melbourne, Victoria 3052, Australia, Walter and Eliza Hall Institute of Medical Research, P.O. Royal Melbourne Hospital, Victoria 3050, Australia, the Centre for Drug Design and Development, University of Queensland, Brisbane, Queensland 4072, Australia, Centre for Molecular Biology, Heidelberg, Germany
Methods: NMR-2D, GC-MS, ESI-MS, enzymatic digestion, HPAE-HPLC
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10. Compound ID: 2388
Structure type: oligomer
; 583.5
Contained glycoepitopes: IEDB_130701,IEDB_134623,IEDB_136044,IEDB_136100,IEDB_136101,IEDB_137472,IEDB_137485,IEDB_141794,IEDB_144983,IEDB_152206,IEDB_190606,IEDB_433717,IEDB_983930,SB_165,SB_166,SB_187,SB_195,SB_44,SB_67,SB_7,SB_72,SB_88
The structure is contained in the following publication(s):
- Article ID: 825
Ilg T, Craik D, Currie G, Multhaup G, Bacic A "Stage-specific proteophosphoglycan from Leishmania mexicana antastigotes - Structural characterization of novel mono-, di-, and triphosphorylated phosphodiester-linked oligosaccharides" -
Journal of Biological Chemistry 273(22) (1998) 13509-13523
Intracellular amastigotes of the protozoan parasite Leishmania mexicana secrete a macromolecular proteo-phosphoglycan (aPPG) into the phagolysosome of their host cell, the mammalian macrophage. The structures of aPPG glycans were analyzed by a combination of high pH anion exchange high pressure liquid chromatography, gas chromatography-mass spectrometry, enzymatic digestions, electrospray-mass spectrometry as well as 1H and 31P NMR spectroscopy. Some glycans are identical to oligosaccharides known from Leishmania mexicana promastigote lipophosphoglycan and secreted acid phosphatase. However, the majority of the aPPG glycans represent amastigote stage-specific and novel structures. These include neutral glycans ( [Glc(bl-3)(n=1-2)]Gal(bl-4)Man, Gal(bl-3)Gal(bl-4)Man, Gal(bl-3)Glc(bl-3)Gal(bl-4)Man ), several monophosphorylated glycans containing the conserved phosphodisaccharide backbone (R-3-[PO4-6-Gal] (bl-4)Man) but carrying stage-specific modifications ( R = Gal(bl-,[Glc(bl-3)(n=1-2)Glc(bl- ), and monophosphorylated aPPG tri- and tetrasaccharides that are uniquely phosphorylated on the terminal hexose ( PO4-6-Glc(bl-3)Gal(bl-4)Man, PO4-6-Glc(bl-3)Glc(bl-3)Gal(bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Gal(b1-4)Man ). In addition aPPG contains highly unusual di- and triphosphorylated glycans whose major species are PO4-6-Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(b1-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)[PO4-6-Gal](b1-4)Man, PO4-6-Gal(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, and PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man. These glycans are linked together by the conserved phosphodiester R-Man-(a1-PO4-6)-Gal-R or the novel phosphodiester R-Man-(a1-PO4-6)-Glc-R and are connected to Ser(P) of the protein backbone most likely via the linkage R-Man-(a1-PO4-Ser). The variety of stage-specific glycan structures in Leishmania mexicana aPPG suggests the presence of developmentally regulated amastigote glycosyl-transferases which may be potential anti-parasite drug targets.
oligosaccharide, structural, characterization, Oligosaccharides, leishmania
NCBI PubMed ID: 9593686Journal NLM ID: 2985121RPublisher: Baltimore, MD: American Society for Biochemistry and Molecular Biology
Correspondence: thomas.ilg@tuebingen.mpg.de
Institutions: Plant Cell Biology Research Centre, School of Botany, University of Melbourne, Victoria 3052, Australia, Walter and Eliza Hall Institute of Medical Research, P.O. Royal Melbourne Hospital, Victoria 3050, Australia, the Centre for Drug Design and Development, University of Queensland, Brisbane, Queensland 4072, Australia, Centre for Molecular Biology, Heidelberg, Germany
Methods: NMR-2D, GC-MS, ESI-MS, enzymatic digestion, HPAE-HPLC
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11. Compound ID: 2389
Structure type: oligomer
; 745.6
Contained glycoepitopes: IEDB_130701,IEDB_134623,IEDB_136044,IEDB_136100,IEDB_137472,IEDB_137485,IEDB_141794,IEDB_142488,IEDB_144983,IEDB_146664,IEDB_152206,IEDB_153543,IEDB_190606,IEDB_433717,IEDB_983930,IEDB_983931,SB_165,SB_166,SB_187,SB_192,SB_195,SB_44,SB_67,SB_7,SB_72,SB_88
The structure is contained in the following publication(s):
- Article ID: 825
Ilg T, Craik D, Currie G, Multhaup G, Bacic A "Stage-specific proteophosphoglycan from Leishmania mexicana antastigotes - Structural characterization of novel mono-, di-, and triphosphorylated phosphodiester-linked oligosaccharides" -
Journal of Biological Chemistry 273(22) (1998) 13509-13523
Intracellular amastigotes of the protozoan parasite Leishmania mexicana secrete a macromolecular proteo-phosphoglycan (aPPG) into the phagolysosome of their host cell, the mammalian macrophage. The structures of aPPG glycans were analyzed by a combination of high pH anion exchange high pressure liquid chromatography, gas chromatography-mass spectrometry, enzymatic digestions, electrospray-mass spectrometry as well as 1H and 31P NMR spectroscopy. Some glycans are identical to oligosaccharides known from Leishmania mexicana promastigote lipophosphoglycan and secreted acid phosphatase. However, the majority of the aPPG glycans represent amastigote stage-specific and novel structures. These include neutral glycans ( [Glc(bl-3)(n=1-2)]Gal(bl-4)Man, Gal(bl-3)Gal(bl-4)Man, Gal(bl-3)Glc(bl-3)Gal(bl-4)Man ), several monophosphorylated glycans containing the conserved phosphodisaccharide backbone (R-3-[PO4-6-Gal] (bl-4)Man) but carrying stage-specific modifications ( R = Gal(bl-,[Glc(bl-3)(n=1-2)Glc(bl- ), and monophosphorylated aPPG tri- and tetrasaccharides that are uniquely phosphorylated on the terminal hexose ( PO4-6-Glc(bl-3)Gal(bl-4)Man, PO4-6-Glc(bl-3)Glc(bl-3)Gal(bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Gal(b1-4)Man ). In addition aPPG contains highly unusual di- and triphosphorylated glycans whose major species are PO4-6-Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(b1-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)[PO4-6-Gal](b1-4)Man, PO4-6-Gal(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, and PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man. These glycans are linked together by the conserved phosphodiester R-Man-(a1-PO4-6)-Gal-R or the novel phosphodiester R-Man-(a1-PO4-6)-Glc-R and are connected to Ser(P) of the protein backbone most likely via the linkage R-Man-(a1-PO4-Ser). The variety of stage-specific glycan structures in Leishmania mexicana aPPG suggests the presence of developmentally regulated amastigote glycosyl-transferases which may be potential anti-parasite drug targets.
oligosaccharide, structural, characterization, Oligosaccharides, leishmania
NCBI PubMed ID: 9593686Journal NLM ID: 2985121RPublisher: Baltimore, MD: American Society for Biochemistry and Molecular Biology
Correspondence: thomas.ilg@tuebingen.mpg.de
Institutions: Plant Cell Biology Research Centre, School of Botany, University of Melbourne, Victoria 3052, Australia, Walter and Eliza Hall Institute of Medical Research, P.O. Royal Melbourne Hospital, Victoria 3050, Australia, the Centre for Drug Design and Development, University of Queensland, Brisbane, Queensland 4072, Australia, Centre for Molecular Biology, Heidelberg, Germany
Methods: NMR-2D, GC-MS, ESI-MS, enzymatic digestion, HPAE-HPLC
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12. Compound ID: 2390
|
P-6)-+
|
b-D-Glcp-(1-3)-b-D-Glcp-(1-3)-b-D-Glcp-(1-3)-b-D-Galp-(1-4)-D-Man |
Show graphically |
Structure type: oligomer
; 907.6
Contained glycoepitopes: IEDB_130701,IEDB_134623,IEDB_136044,IEDB_136100,IEDB_137472,IEDB_137485,IEDB_141794,IEDB_142488,IEDB_144983,IEDB_146664,IEDB_152206,IEDB_153543,IEDB_158555,IEDB_190606,IEDB_433717,IEDB_983930,IEDB_983931,SB_165,SB_166,SB_187,SB_192,SB_195,SB_44,SB_67,SB_7,SB_72,SB_88
The structure is contained in the following publication(s):
- Article ID: 825
Ilg T, Craik D, Currie G, Multhaup G, Bacic A "Stage-specific proteophosphoglycan from Leishmania mexicana antastigotes - Structural characterization of novel mono-, di-, and triphosphorylated phosphodiester-linked oligosaccharides" -
Journal of Biological Chemistry 273(22) (1998) 13509-13523
Intracellular amastigotes of the protozoan parasite Leishmania mexicana secrete a macromolecular proteo-phosphoglycan (aPPG) into the phagolysosome of their host cell, the mammalian macrophage. The structures of aPPG glycans were analyzed by a combination of high pH anion exchange high pressure liquid chromatography, gas chromatography-mass spectrometry, enzymatic digestions, electrospray-mass spectrometry as well as 1H and 31P NMR spectroscopy. Some glycans are identical to oligosaccharides known from Leishmania mexicana promastigote lipophosphoglycan and secreted acid phosphatase. However, the majority of the aPPG glycans represent amastigote stage-specific and novel structures. These include neutral glycans ( [Glc(bl-3)(n=1-2)]Gal(bl-4)Man, Gal(bl-3)Gal(bl-4)Man, Gal(bl-3)Glc(bl-3)Gal(bl-4)Man ), several monophosphorylated glycans containing the conserved phosphodisaccharide backbone (R-3-[PO4-6-Gal] (bl-4)Man) but carrying stage-specific modifications ( R = Gal(bl-,[Glc(bl-3)(n=1-2)Glc(bl- ), and monophosphorylated aPPG tri- and tetrasaccharides that are uniquely phosphorylated on the terminal hexose ( PO4-6-Glc(bl-3)Gal(bl-4)Man, PO4-6-Glc(bl-3)Glc(bl-3)Gal(bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Gal(b1-4)Man ). In addition aPPG contains highly unusual di- and triphosphorylated glycans whose major species are PO4-6-Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(b1-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)[PO4-6-Gal](b1-4)Man, PO4-6-Gal(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, and PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man. These glycans are linked together by the conserved phosphodiester R-Man-(a1-PO4-6)-Gal-R or the novel phosphodiester R-Man-(a1-PO4-6)-Glc-R and are connected to Ser(P) of the protein backbone most likely via the linkage R-Man-(a1-PO4-Ser). The variety of stage-specific glycan structures in Leishmania mexicana aPPG suggests the presence of developmentally regulated amastigote glycosyl-transferases which may be potential anti-parasite drug targets.
oligosaccharide, structural, characterization, Oligosaccharides, leishmania
NCBI PubMed ID: 9593686Journal NLM ID: 2985121RPublisher: Baltimore, MD: American Society for Biochemistry and Molecular Biology
Correspondence: thomas.ilg@tuebingen.mpg.de
Institutions: Plant Cell Biology Research Centre, School of Botany, University of Melbourne, Victoria 3052, Australia, Walter and Eliza Hall Institute of Medical Research, P.O. Royal Melbourne Hospital, Victoria 3050, Australia, the Centre for Drug Design and Development, University of Queensland, Brisbane, Queensland 4072, Australia, Centre for Molecular Biology, Heidelberg, Germany
Methods: NMR-2D, GC-MS, ESI-MS, enzymatic digestion, HPAE-HPLC
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13. Compound ID: 2391
Structure type: oligomer
; 583.5
Contained glycoepitopes: IEDB_130701,IEDB_134623,IEDB_136044,IEDB_137472,IEDB_137485,IEDB_141794,IEDB_142488,IEDB_144983,IEDB_146664,IEDB_152206,IEDB_190606,IEDB_241118,IEDB_433717,IEDB_983930,IEDB_983931,SB_165,SB_166,SB_187,SB_192,SB_195,SB_44,SB_67,SB_7,SB_72,SB_88
The structure is contained in the following publication(s):
- Article ID: 825
Ilg T, Craik D, Currie G, Multhaup G, Bacic A "Stage-specific proteophosphoglycan from Leishmania mexicana antastigotes - Structural characterization of novel mono-, di-, and triphosphorylated phosphodiester-linked oligosaccharides" -
Journal of Biological Chemistry 273(22) (1998) 13509-13523
Intracellular amastigotes of the protozoan parasite Leishmania mexicana secrete a macromolecular proteo-phosphoglycan (aPPG) into the phagolysosome of their host cell, the mammalian macrophage. The structures of aPPG glycans were analyzed by a combination of high pH anion exchange high pressure liquid chromatography, gas chromatography-mass spectrometry, enzymatic digestions, electrospray-mass spectrometry as well as 1H and 31P NMR spectroscopy. Some glycans are identical to oligosaccharides known from Leishmania mexicana promastigote lipophosphoglycan and secreted acid phosphatase. However, the majority of the aPPG glycans represent amastigote stage-specific and novel structures. These include neutral glycans ( [Glc(bl-3)(n=1-2)]Gal(bl-4)Man, Gal(bl-3)Gal(bl-4)Man, Gal(bl-3)Glc(bl-3)Gal(bl-4)Man ), several monophosphorylated glycans containing the conserved phosphodisaccharide backbone (R-3-[PO4-6-Gal] (bl-4)Man) but carrying stage-specific modifications ( R = Gal(bl-,[Glc(bl-3)(n=1-2)Glc(bl- ), and monophosphorylated aPPG tri- and tetrasaccharides that are uniquely phosphorylated on the terminal hexose ( PO4-6-Glc(bl-3)Gal(bl-4)Man, PO4-6-Glc(bl-3)Glc(bl-3)Gal(bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Gal(b1-4)Man ). In addition aPPG contains highly unusual di- and triphosphorylated glycans whose major species are PO4-6-Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(b1-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)[PO4-6-Gal](b1-4)Man, PO4-6-Gal(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, and PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man. These glycans are linked together by the conserved phosphodiester R-Man-(a1-PO4-6)-Gal-R or the novel phosphodiester R-Man-(a1-PO4-6)-Glc-R and are connected to Ser(P) of the protein backbone most likely via the linkage R-Man-(a1-PO4-Ser). The variety of stage-specific glycan structures in Leishmania mexicana aPPG suggests the presence of developmentally regulated amastigote glycosyl-transferases which may be potential anti-parasite drug targets.
oligosaccharide, structural, characterization, Oligosaccharides, leishmania
NCBI PubMed ID: 9593686Journal NLM ID: 2985121RPublisher: Baltimore, MD: American Society for Biochemistry and Molecular Biology
Correspondence: thomas.ilg@tuebingen.mpg.de
Institutions: Plant Cell Biology Research Centre, School of Botany, University of Melbourne, Victoria 3052, Australia, Walter and Eliza Hall Institute of Medical Research, P.O. Royal Melbourne Hospital, Victoria 3050, Australia, the Centre for Drug Design and Development, University of Queensland, Brisbane, Queensland 4072, Australia, Centre for Molecular Biology, Heidelberg, Germany
Methods: NMR-2D, GC-MS, ESI-MS, enzymatic digestion, HPAE-HPLC
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14. Compound ID: 2392
Structure type: oligomer
; 745.6
Contained glycoepitopes: IEDB_130701,IEDB_134623,IEDB_136044,IEDB_137472,IEDB_137485,IEDB_141794,IEDB_142488,IEDB_144983,IEDB_146664,IEDB_152206,IEDB_153543,IEDB_190606,IEDB_241118,IEDB_433717,IEDB_983930,IEDB_983931,SB_165,SB_166,SB_187,SB_192,SB_195,SB_44,SB_67,SB_7,SB_72,SB_88
The structure is contained in the following publication(s):
- Article ID: 825
Ilg T, Craik D, Currie G, Multhaup G, Bacic A "Stage-specific proteophosphoglycan from Leishmania mexicana antastigotes - Structural characterization of novel mono-, di-, and triphosphorylated phosphodiester-linked oligosaccharides" -
Journal of Biological Chemistry 273(22) (1998) 13509-13523
Intracellular amastigotes of the protozoan parasite Leishmania mexicana secrete a macromolecular proteo-phosphoglycan (aPPG) into the phagolysosome of their host cell, the mammalian macrophage. The structures of aPPG glycans were analyzed by a combination of high pH anion exchange high pressure liquid chromatography, gas chromatography-mass spectrometry, enzymatic digestions, electrospray-mass spectrometry as well as 1H and 31P NMR spectroscopy. Some glycans are identical to oligosaccharides known from Leishmania mexicana promastigote lipophosphoglycan and secreted acid phosphatase. However, the majority of the aPPG glycans represent amastigote stage-specific and novel structures. These include neutral glycans ( [Glc(bl-3)(n=1-2)]Gal(bl-4)Man, Gal(bl-3)Gal(bl-4)Man, Gal(bl-3)Glc(bl-3)Gal(bl-4)Man ), several monophosphorylated glycans containing the conserved phosphodisaccharide backbone (R-3-[PO4-6-Gal] (bl-4)Man) but carrying stage-specific modifications ( R = Gal(bl-,[Glc(bl-3)(n=1-2)Glc(bl- ), and monophosphorylated aPPG tri- and tetrasaccharides that are uniquely phosphorylated on the terminal hexose ( PO4-6-Glc(bl-3)Gal(bl-4)Man, PO4-6-Glc(bl-3)Glc(bl-3)Gal(bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Gal(b1-4)Man ). In addition aPPG contains highly unusual di- and triphosphorylated glycans whose major species are PO4-6-Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(b1-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)[PO4-6-Gal](b1-4)Man, PO4-6-Gal(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, and PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man. These glycans are linked together by the conserved phosphodiester R-Man-(a1-PO4-6)-Gal-R or the novel phosphodiester R-Man-(a1-PO4-6)-Glc-R and are connected to Ser(P) of the protein backbone most likely via the linkage R-Man-(a1-PO4-Ser). The variety of stage-specific glycan structures in Leishmania mexicana aPPG suggests the presence of developmentally regulated amastigote glycosyl-transferases which may be potential anti-parasite drug targets.
oligosaccharide, structural, characterization, Oligosaccharides, leishmania
NCBI PubMed ID: 9593686Journal NLM ID: 2985121RPublisher: Baltimore, MD: American Society for Biochemistry and Molecular Biology
Correspondence: thomas.ilg@tuebingen.mpg.de
Institutions: Plant Cell Biology Research Centre, School of Botany, University of Melbourne, Victoria 3052, Australia, Walter and Eliza Hall Institute of Medical Research, P.O. Royal Melbourne Hospital, Victoria 3050, Australia, the Centre for Drug Design and Development, University of Queensland, Brisbane, Queensland 4072, Australia, Centre for Molecular Biology, Heidelberg, Germany
Methods: NMR-2D, GC-MS, ESI-MS, enzymatic digestion, HPAE-HPLC
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15. Compound ID: 2393
Structure type: oligomer
; 745.6
Contained glycoepitopes: IEDB_130701,IEDB_134623,IEDB_136044,IEDB_137472,IEDB_137485,IEDB_141794,IEDB_142488,IEDB_144983,IEDB_146664,IEDB_152206,IEDB_190606,IEDB_433717,IEDB_983930,IEDB_983931,SB_165,SB_166,SB_187,SB_192,SB_195,SB_44,SB_67,SB_7,SB_72,SB_88
The structure is contained in the following publication(s):
- Article ID: 825
Ilg T, Craik D, Currie G, Multhaup G, Bacic A "Stage-specific proteophosphoglycan from Leishmania mexicana antastigotes - Structural characterization of novel mono-, di-, and triphosphorylated phosphodiester-linked oligosaccharides" -
Journal of Biological Chemistry 273(22) (1998) 13509-13523
Intracellular amastigotes of the protozoan parasite Leishmania mexicana secrete a macromolecular proteo-phosphoglycan (aPPG) into the phagolysosome of their host cell, the mammalian macrophage. The structures of aPPG glycans were analyzed by a combination of high pH anion exchange high pressure liquid chromatography, gas chromatography-mass spectrometry, enzymatic digestions, electrospray-mass spectrometry as well as 1H and 31P NMR spectroscopy. Some glycans are identical to oligosaccharides known from Leishmania mexicana promastigote lipophosphoglycan and secreted acid phosphatase. However, the majority of the aPPG glycans represent amastigote stage-specific and novel structures. These include neutral glycans ( [Glc(bl-3)(n=1-2)]Gal(bl-4)Man, Gal(bl-3)Gal(bl-4)Man, Gal(bl-3)Glc(bl-3)Gal(bl-4)Man ), several monophosphorylated glycans containing the conserved phosphodisaccharide backbone (R-3-[PO4-6-Gal] (bl-4)Man) but carrying stage-specific modifications ( R = Gal(bl-,[Glc(bl-3)(n=1-2)Glc(bl- ), and monophosphorylated aPPG tri- and tetrasaccharides that are uniquely phosphorylated on the terminal hexose ( PO4-6-Glc(bl-3)Gal(bl-4)Man, PO4-6-Glc(bl-3)Glc(bl-3)Gal(bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Gal(b1-4)Man ). In addition aPPG contains highly unusual di- and triphosphorylated glycans whose major species are PO4-6-Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(b1-3)[PO4-6-Gal](bl-4)Man, PO4-6-Gal(bl-3)Glc(bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)[PO4-6-Gal](b1-4)Man, PO4-6-Gal(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man, and PO4-6-Glc(bl-3)[PO4-6-Glc](bl-3)Glc(bl-3)[PO4-6-Gal](bl-4)Man. These glycans are linked together by the conserved phosphodiester R-Man-(a1-PO4-6)-Gal-R or the novel phosphodiester R-Man-(a1-PO4-6)-Glc-R and are connected to Ser(P) of the protein backbone most likely via the linkage R-Man-(a1-PO4-Ser). The variety of stage-specific glycan structures in Leishmania mexicana aPPG suggests the presence of developmentally regulated amastigote glycosyl-transferases which may be potential anti-parasite drug targets.
oligosaccharide, structural, characterization, Oligosaccharides, leishmania
NCBI PubMed ID: 9593686Journal NLM ID: 2985121RPublisher: Baltimore, MD: American Society for Biochemistry and Molecular Biology
Correspondence: thomas.ilg@tuebingen.mpg.de
Institutions: Plant Cell Biology Research Centre, School of Botany, University of Melbourne, Victoria 3052, Australia, Walter and Eliza Hall Institute of Medical Research, P.O. Royal Melbourne Hospital, Victoria 3050, Australia, the Centre for Drug Design and Development, University of Queensland, Brisbane, Queensland 4072, Australia, Centre for Molecular Biology, Heidelberg, Germany
Methods: NMR-2D, GC-MS, ESI-MS, enzymatic digestion, HPAE-HPLC
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