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Dworaczek K, Kurzylewska M, Laban M, Drzewiecka D, Pękala-Safińska A, Turska-Szewczuk A. Structural Studies of the Lipopolysaccharide of Aeromonas veronii bv. sobria Strain K133 Which Represents New Provisional Serogroup PGO1 Prevailing among Mesophilic Aeromonads on Polish Fish Farms. Int J Mol Sci 2021; 22:ijms22084272. [PMID: 33924078 PMCID: PMC8074265 DOI: 10.3390/ijms22084272] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/16/2021] [Accepted: 04/16/2021] [Indexed: 02/06/2023] Open
Abstract
In the present work, we performed immunochemical studies of LPS, especially the O-specific polysaccharide (O-PS) of Aeromonas veronii bv. sobria strain K133, which was isolated from the kidney of carp (Cyprinus carpio L.) during an outbreak of motile aeromonad infection/motile aeromonad septicemia (MAI/MAS) on a Polish fish farm. The structural characterization of the O-PS, which was obtained by mild acid degradation of the LPS, was performed with chemical methods, MALDI-TOF mass spectrometry, and 1H and 13C NMR spectroscopy. It was revealed that the O-PS has a unique composition of a linear tetrasaccharide repeating unit and contains a rarely occurring sugar 2,4-diamino-2,4,6-trideoxy-D-glucose (bacillosamine), which may determine the specificity of the serogroup. Western blotting and ELISA confirmed that A. veronii bv. sobria strain K133 belongs to the new serogroup PGO1, which is one of the most commonly represented immunotypes among carp and trout isolates of Aeromonas sp. in Polish aquacultures. Considering the increase in the MAI/MAS incidences and their impact on freshwater species, also with economic importance, and in the absence of an effective immunoprophylaxis, studies of the Aeromonas O-antigens are relevant in the light of epidemiological data and monitoring emergent pathogens representing unknown antigenic variants and serotypes.
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Affiliation(s)
- Katarzyna Dworaczek
- Department of Genetics and Microbiology, Institute of Biological Sciences, Maria Curie-Skłodowska University, Akademicka 19 St., 20-033 Lublin, Poland; (K.D.); (M.K.); (M.L.)
| | - Maria Kurzylewska
- Department of Genetics and Microbiology, Institute of Biological Sciences, Maria Curie-Skłodowska University, Akademicka 19 St., 20-033 Lublin, Poland; (K.D.); (M.K.); (M.L.)
| | - Magdalena Laban
- Department of Genetics and Microbiology, Institute of Biological Sciences, Maria Curie-Skłodowska University, Akademicka 19 St., 20-033 Lublin, Poland; (K.D.); (M.K.); (M.L.)
| | - Dominika Drzewiecka
- Laboratory of General Microbiology, Department of Biology of Bacteria, Faculty of Biology and Environmental Protection, University of Łódź, Banacha 12/16 St., 90-237 Łódź, Poland;
| | - Agnieszka Pękala-Safińska
- Department of Fish Diseases, National Veterinary Research Institute, Partyzantów 57 St., 24-100 Puławy, Poland;
| | - Anna Turska-Szewczuk
- Department of Genetics and Microbiology, Institute of Biological Sciences, Maria Curie-Skłodowska University, Akademicka 19 St., 20-033 Lublin, Poland; (K.D.); (M.K.); (M.L.)
- Correspondence: ; Tel.: +48-81-537-50-18; Fax: +48-81-537-59-59
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Knirel YA, Naumenko OI, Senchenkova SN, Perepelov AV. Chemical methods for selective cleavage of glycosidic bonds in the structural analysis of bacterial polysaccharides. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4856] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Structure of the O-specific polysaccharide from the lipopolysaccharide of Aeromonas hydrophila strain K691 containing 4-acetamido-4,6-dideoxy-d-glucose. Carbohydr Res 2017; 439:23-29. [PMID: 28088128 DOI: 10.1016/j.carres.2016.12.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 12/21/2016] [Accepted: 12/21/2016] [Indexed: 11/21/2022]
Abstract
The O-specific polysaccharide (OPS) was isolated from the lipopolysaccharide of Aeromonas hydrophila strain K691 and studied by chemical methods and 1H and 13C NMR spectroscopy, including 2D 1H,1H COSY, TOCSY, NOESY, 1H-detected heteronuclear 1H,13C HSQC, and HMBC experiments. It was found that the O-specific polysaccharide was built up of pentasaccharide repeating units composed of β-GlcpNAc, 2-O-acetylated α-Rhap, and β-Quip4NAc residues. The following structure of the OPS was established: →3)-α-l-Rha2OAc-(1→3)-β-d-GlcNAc-(1→3)-α-l-Rha2OAc-(1→3)-β-d-GlcNAc-(1→2)-β-d-Qui4NAc-(1→.
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Structure elucidation and gene cluster annotation of the O-antigen of Escherichia coli O39; application of anhydrous trifluoroacetic acid for selective cleavage of glycosidic linkages. Carbohydr Res 2014; 388:30-6. [PMID: 24607538 DOI: 10.1016/j.carres.2014.02.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Accepted: 02/09/2014] [Indexed: 11/18/2022]
Abstract
O-Polysaccharide (O-antigen) accompanied by a minor mannan was isolated from the lipopolysaccharide of Escherichia coli O39 and studied by component analyses, methylation, Smith degradation, mass spectrometry, and 1D and 2D NMR spectroscopy. In addition, a new approach, solvolysis with anhydrous trifluoroacetic acid, was applied to cleave selectively the rhamnosidic linkage. The following structure of the O-polysaccharide was established: α--D-Galpl-->3-->3)-β-D-Quip4N(R3Hb)-(1-->2)-α-D-Manp-(l-->4)-α-L-Rhap-(1-->3)-α-D-GlcpNAc-(1--> where D-Qui4N(R3Hb) indicates 4,6-dideoxy-4-[(R)-3-hydroxybutanoylamino]-d-glucose. The O-antigen gene cluster of E. coli O39 has been sequenced. The gene functions were tentatively assigned by a comparison with sequences in the available databases and found to be in agreement with the O-polysaccharide structure.
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Structure of the alanopine-containing O-polysaccharide and serological cross-reactivity of the lipopolysaccharide of Proteus vulgaris HSC 438 classified into a new Proteus serogroup, O76. Microbiology (Reading) 2013; 159:1036-1043. [DOI: 10.1099/mic.0.067231-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Ovchinnikova OG, Valueva OA, Kocharova NA, Arbatsky NP, Maszewska A, Zablotni A, Shashkov AS, Rozalski A, Knirel YA. Structure of the O-polysaccharide of Providencia alcalifaciens O35 containing an N-[(S)-1-carboxyethyl]-L-alanine (alanopine) derivative of 4-amino-4,6-dideoxyglucose. Carbohydr Res 2013; 375:73-8. [PMID: 23694707 DOI: 10.1016/j.carres.2013.04.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Accepted: 04/15/2013] [Indexed: 11/30/2022]
Abstract
The O-polysaccharide of Providencia alcalifaciens O35 was studied by sugar and methylation analyses along with (1)H and (13)C NMR spectroscopy, including 2D (1)H,(13)C HMBC, and NOESY experiments in D2O and, to detect correlations for NH protons, in a 9:1 H2O/D2O mixture. A unique N-(1-carboxyethyl)alanine (alanopine, Alo) derivative of 4-amino-4,6-dideoxyglucose (Qui4N) was identified as the polysaccharide component. Alanopine was isolated by solvolysis of the polysaccharide with triflic acid followed by acid hydrolysis, and its (2S,4S)-configuration was determined by the specific optical rotation. The following structure of the O-polysaccharide was established (the d configuration of Qui4N was ascribed tentatively): [structure: see text].
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Affiliation(s)
- Olga G Ovchinnikova
- ND Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russian Federation.
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Kondakova AN, Kirsheva NA, Shashkov AS, Shaikhutdinova RZ, Arabtsky NP, Ivanov SA, Anisimov AP, Knirel YA. Low structural diversity of the O-polysaccharides of Photorhabdus asymbiotica subspp. asymbiotica and australis and their similarity to the O-polysaccharides of taxonomically remote bacteria including Francisella tularensis. Carbohydr Res 2011; 346:1951-5. [PMID: 21816392 DOI: 10.1016/j.carres.2011.05.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Revised: 05/11/2011] [Accepted: 05/15/2011] [Indexed: 10/18/2022]
Abstract
The O-polysaccharides were isolated from the lipopolysaccharides of emerging human pathogens Photorhabdus asymbiotica subsp. asymbiotica US-86 and US-87 and subsp. australis AU36, AU46, and AU92. Studies by sugar analysis and (1)H and (13)C NMR spectroscopy before and after O-deacetylation showed that the O-polysaccharide structures are essentially identical within, and only slightly different between, the subspecies. The following structures of the repeating units of the O-polysaccharides were established: →3)-β-d-Quip4NGlyFo-(1→4)-α-d-GalpNAcAN3Ac-(1→4)-α-d-GalpNAcA3R-(1→3)-α-d-QuipNAc-(1→ where GalNAcA stands for 2-acetamido-2-deoxygalacturonic acid, GalNAcAN for amide of GalNAcA, QuiNAc for 2-acetamido-2,6-dideoxyglucose, and Qui4NGlyFo for 4,6-dideoxy-4-(N-formylglycyl)aminoglucose; R=Ac in subsp. asymbiotica or H in subsp. australis. The structures established resemble those of a number of taxonomically remote bacteria including Francisella tularensis (Vinogradov, E. V.; Shashkov, A. S.; Knirel, Y. A.; Kochetkov, N. K.; Tochtamysheva, N. V.; Averin, S. P.; Goncharova, O. V.; Khlebnikov, V. S. Carbohydr. Res.1991, 214, 289-297), which differs in (i) the presence of a formyl group on Qui4N rather than the N-formylglycyl group, (ii) the mode of the linkage between the repeating units (β1→2 vs α1→3), (iii) amidation of both GalNAcA residues rather than one residue, and iv) the lack of O-acetylation.
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Affiliation(s)
- Anna N Kondakova
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia.
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Perepelov AV, Kocharova NA, Knirel YA, Jansson PE, Weintraub A. Structure of the O-polysaccharide of Vibrio cholerae O43 containing a new monosaccharide derivative, 4-(N-acetyl-l-allothreonyl)amino-4,6-dideoxy-d-glucose. Carbohydr Res 2011; 346:430-3. [DOI: 10.1016/j.carres.2010.12.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2010] [Revised: 12/07/2010] [Accepted: 12/09/2010] [Indexed: 10/18/2022]
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Perepelov AV, Liu B, Shevelev SD, Senchenkova SN, Hu B, Shashkov AS, Feng L, Knirel YA, Wang L. Structural and genetic characterization of the O-antigen of Salmonella enterica O56 containing a novel derivative of 4-amino-4,6-dideoxy-d-glucose. Carbohydr Res 2010; 345:1891-5. [DOI: 10.1016/j.carres.2010.05.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2010] [Revised: 05/05/2010] [Accepted: 05/10/2010] [Indexed: 10/19/2022]
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Arbatsky NP, Kondakova AN, Shashkov AS, Drutskaya MS, Belousov PV, Nedospasov SA, Petrova MA, Knirel YA. Structure of the O-antigen of Acinetobacter lwoffii EK30A; identification of d-homoserine, a novel non-sugar component of bacterial polysaccharides. Org Biomol Chem 2010; 8:3571-7. [PMID: 20539880 DOI: 10.1039/c004090h] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We established a peculiar structure of the O-specific polysaccharide (O-antigen) of a psychrotrophic strain of Acinetobacter lwoffii, EK30A, isolated from a 1.6-1.8 million-year-old Siberian permafrost subsoil sediment sample. The polysaccharide was released by mild acid degradation of the lipopolysaccharide and studied using chemical analyses, Smith degradation, (1)H and (13)C NMR spectroscopy and mass spectrometry. It was found to contain d-homoserine, which is N-linked to 4-amino-4,6-dideoxy-d-glucose (Qui4N) and is N-acylated itself with acetyl in about half of the repeating units or (S)-3-hydroxybutanoyl group in the other half. The following is the structure of the tetrasaccharide repeating unit of the polysaccharide: -->3)-beta-d-Quip4NAcyl-(1-->6)-alpha-d-Galp-(1-->4)-alpha-d-GalpNAc-(1-->3)-alpha-d-FucpNAc-(1--> where Acyl stands for either N-acetyl- or N-[(S)-3-hydroxybutanoyl]-d-homoseryl.
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Affiliation(s)
- Nikolay P Arbatsky
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russian Federation
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Perepelov AV, Liu B, Shevelev SD, Senchenkova SN, Shashkov AS, Feng L, Knirel YA, Wang L. Relatedness of the O-polysaccharide structures of Escherichia coli O123 and Salmonella enterica O58, both containing 4,6-dideoxy-4-{N-[(S)-3-hydroxybutanoyl]-d-alanyl}amino-d-glucose; revision of the E. coli O123 O-polysaccharide structure. Carbohydr Res 2010; 345:825-9. [DOI: 10.1016/j.carres.2010.01.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2009] [Accepted: 01/27/2010] [Indexed: 10/19/2022]
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Knirel YA, Perepelov AV, Kondakova AN, Senchenkova SN, Sidorczyk Z, Rozalski A, Kaca W. Structure and serology of O-antigens as the basis for classification of Proteus strains. Innate Immun 2010; 17:70-96. [DOI: 10.1177/1753425909360668] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
This review is devoted to structural and serological characteristics of the O-antigens (O-polysaccharides) of the lipopolysaccharides of various Proteus species, which provide the basis for classifying Proteus strains to Oserogroups. The antigenic relationships of Proteus strains within and beyond the genus as well as their O-antigenrelated bioactivities are also discussed.
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Affiliation(s)
- Yuriy A. Knirel
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia,
| | - Andrei V. Perepelov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Anna N. Kondakova
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Sof'ya N. Senchenkova
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Zygmunt Sidorczyk
- Institute of Microbiology, Biotechnology and Immunology, University of Lodz, Lodz, Poland
| | - Antoni Rozalski
- Institute of Microbiology, Biotechnology and Immunology, University of Lodz, Lodz, Poland
| | - Wieslaw Kaca
- Department of Microbiology, Jan Kochanowski University, Kielce, Poland
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Perepelov AV, Wang Q, Senchenkova SN, Shevelev SD, Shashkov AS, Feng L, Knirel YA, Wang L. Structure and characterization of the gene cluster of the O-antigen of Escherichia coli O49 containing 4,6-dideoxy-4-[(S)-3-hydroxybutanoylamino]-D-glucose. BIOCHEMISTRY (MOSCOW) 2008; 73:406-10. [PMID: 18457569 DOI: 10.1134/s0006297908040044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An O-polysaccharide was isolated by mild acid degradation of the lipopolysaccharide of enteropathogenic Escherichia coli O49 and studied by sugar analysis along with one- and two-dimensional 1H- and 13C-NMR spectroscopy. The following structure of the linear tetrasaccharide repeating unit of the O-polysaccharide was established: [formula], where D-Qui4N(S3HOBut) stands for 4,6-dideoxy-4-[(S)-3-hydroxybutanoylamino]-D-glucose and O-acetylation of GlcNAc is partial (~30%). To our knowledge, no N-(3-hydroxybutanoyl) derivative of Qui4N has been hitherto found in bacterial polysaccharides. Gene functions of the O-antigen gene cluster of E. coli O49 were assigned by bioinformatics analysis and found to correspond to the O-polysaccharide structure. Two new genes were revealed and suggested to be responsible for synthesis and transfer of the 3-hydroxybutanoyl group.
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Affiliation(s)
- A V Perepelov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia.
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Wang Y, Xu Y, Perepelov AV, Qi Y, Knirel YA, Wang L, Feng L. Biochemical characterization of dTDP-D-Qui4N and dTDP-D-Qui4NAc biosynthetic pathways in Shigella dysenteriae type 7 and Escherichia coli O7. J Bacteriol 2007; 189:8626-35. [PMID: 17905981 PMCID: PMC2168959 DOI: 10.1128/jb.00777-07] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
O-antigen variation due to the presence of different types of sugars and sugar linkages is important for the survival of bacteria threatened by host immune systems. The O antigens of Shigella dysenteriae type 7 and Escherichia coli O7 contain 4-(N-acetylglycyl)amino-4,6-dideoxy-d-glucose (d-Qui4NGlyAc) and 4-acetamido-4,6-dideoxy-d-glucose (d-Qui4NAc), respectively, which are sugars not often found in studied polysaccharides. In this study, we characterized the biosynthetic pathways for dTDP-d-Qui4N and dTDP-d-Qui4NAc (the nucleotide-activated precursors of d-Qui4NGlyAc and d-Qui4NAc in O antigens). Predicted genes involved in the synthesis of the two sugars were cloned, and the gene products were overexpressed and purified as His-tagged fusion proteins. In vitro enzymatic reactions were carried out using the purified proteins, and the reaction products were analyzed by capillary electrophoresis, electrospray ionization-mass spectrometry, and nuclear magnetic resonance spectroscopy. It is shown that in S. dysenteriae type 7 and E. coli O7, dTDP-d-Qui4N is synthesized from alpha-d-glucose-1-phosphate in three reaction steps catalyzed by glucose-1-phosphate thymidyltransferase (RmlA), dTDP-d-glucose 4,6-dehydratase (RmlB), and dTDP-4-keto-6-deoxy-d-glucose aminotransferase (VioA). An additional acetyltransferase (VioB) catalyzes the conversion of dTDP-d-Qui4N into dTDP-d-Qui4NAc in E. coli O7. Kinetic parameters and some other properties of VioA and VioB are described and differences between VioA proteins from S. dysenteriae type 7 (VioA(D7)) and E. coli O7 (VioA(O7)) discussed. To our knowledge, this is the first time that functions of VioA and VioB have been biochemically characterized. This study provides valuable enzyme sources for the production of dTDP-d-Qui4N and dTDP-d-Qui4NAc, which are potentially useful in the pharmaceutical industry for drug development.
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Affiliation(s)
- Ying Wang
- TEDA School of Biological Sciences and Biotechnology, Nankai University, 23 Hongda Street, TEDA, Tianjin 300457, People's Republic of China.
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Kołodziejska K, Perepelov AV, Zabłotni A, Drzewiecka D, Senchenkova SN, Zych K, Shashkov AS, Knirel YA, Sidorczyk Z. Structure of the glycerol phosphate-containing O-polysaccharides and serological studies of the lipopolysaccharides ofProteus mirabilisCCUG 10704 (OE) andProteus vulgarisTG 103 classified into a newProteusserogroup, O54. ACTA ACUST UNITED AC 2006; 47:267-74. [PMID: 16831214 DOI: 10.1111/j.1574-695x.2006.00084.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
O-Polysaccharides were obtained from the lipopolysaccharides of Proteus mirabilis CCUG 10704 (OE) and Proteus vulgaris TG 103 and studied by chemical analyses and one- and two-dimensional (1)H and (13)C nuclear magnetic resonance spectroscopy, including rotating-frame nuclear Overhauser effect spectroscopy, H-detected (1)H,(13)C heteronuclear single-quantum spectroscopy and (1)H,(31)P heteronuclear multiple-quantum spectroscopy experiments. The Proteus mirabilis OE polysaccharide was found to have a trisaccharide repeating unit with a lateral glycerol phosphate group. The Proteus vulgaris TG 103 produces a similar O-polysaccharide, which differs in incomplete substitution with glycerol phosphate (c. 50% of the stoichiometric amount) and the presence of an O-acetyl group at position 6 of the 2-acetamido-2-deoxygalactose (GalNAc) residue. These structures are unique among the known bacterial polysaccharide structures. Based on the structural and serological data of the lipopolysaccharides, it is proposed to classify both strains studied into a new Proteus serogroup, O54, as two subgroups, O54a,54b and O54a,54c. The serological relatedness of the Proteus O54 and some other Proteus lipopolysaccharides is discussed.
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Affiliation(s)
- Katarzyna Kołodziejska
- Department of General Microbiology, Institute of Microbiology and Immunology, University of Lodz, Lodz, Poland
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Kocharova NA, Torzewska A, Zatonsky GV, Błaszczyk A, Bystrova OV, Shashkov AS, Knirel YA, Rozalski A. Structure of the O-polysaccharide of Providencia stuartii O4 containing 4-(N-acetyl-L-aspart-4-yl)amino-4,6-dideoxy-D-glucose. Carbohydr Res 2004; 339:195-200. [PMID: 14698876 DOI: 10.1016/j.carres.2003.10.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The O-polysaccharide of Providencia stuartii O4 was obtained by mild acid degradation of the lipopolysaccharide, and the following structure of the pentasaccharide repeating unit was established: [structure: see text] where D-Qui4N(L-AspAc) is 4-(N-acetyl-L-aspart-4-yl)amino-4,6-dideoxy-D-glucose, which has not been hitherto found in bacterial polysaccharides. Structural studies were performed using sugar and methylation analyses, Smith degradation and NMR spectroscopy, including conventional 2D 1H,1H COSY, TOCSY, NOESY and 1H,13C HSQC experiments as well as COSY and NOESY experiments run in an H(2)O-D(2)O mixture to reveal correlations for NH protons.
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Affiliation(s)
- Nina A Kocharova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991, Moscow, Russia
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Torzewska A, Kocharova NA, Zatonsky GV, Blaszczyk A, Bystrova OV, Shashkov AS, Knirel YA, Rozalski A. Structure of the O-polysaccharide and serological cross-reactivity of theProvidencia stuartiiO33 lipopolysaccharide containing 4-(N-acetyl-d-aspart-4-yl)amino-4,6-dideoxy-d-glucose. ACTA ACUST UNITED AC 2004; 41:133-9. [PMID: 15145457 DOI: 10.1016/j.femsim.2004.02.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2003] [Revised: 02/05/2004] [Accepted: 02/23/2004] [Indexed: 11/30/2022]
Abstract
The O-polysaccharide of Providencia stuartii O33 was obtained by mild acid degradation of the lipopolysaccharide and the following structure of the tetrasaccharide repeating unit was established: -->6)-alpha-D-GlcpNAc-(1-->4)-alpha-D-GalpA-(1-->3)-alpha-D-GlcpNAc-(1-->3)-beta-D-Quip4N(Ac-D-Asp)-(1-->, where d-Qui4N(Ac-D-Asp) is 4-(N-acetyl-D-aspart-4-yl)amino-4,6-dideoxy-D-glucose. Structural studies were performed using sugar and methylation analyses and NMR spectroscopy, including conventional 2D 1H, 1H COSY, TOCSY, NOESY and 1H, 13C HSQC experiments as well as COSY and NOESY experiments in an H2O-D2O mixture to reveal correlations for NH protons. The O-polysaccharide of P. stuartii O33 shares an alpha-D-GlcpNAc-(1-->3)-beta-D-Quip4N(Ac-D-Asp) epitope with that of Proteus mirabilis O38, which seems to be responsible for a marked serological cross-reactivity of anti-P. stuartii O33 serum with the lipopolysaccharide of the latter bacterium. P. stuartii O33 is serologically related also to P. stuartii O4, whose O-polysaccharide contains a lateral beta-D-Qui4N(Ac-L-Asp) residue.
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Affiliation(s)
- Agnieszka Torzewska
- Department of Immunobiology of Bacteria, Institute of Microbiology and Immunology, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
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Kilcoyne M, Perepelov AV, Tomshich SV, Komandrova NA, Shashkov AS, Romanenko LA, Knirel YA, Savage AV. Structure of the O-polysaccharide of Idiomarina zobellii KMM 231T containing two unusual amino sugars with the free amino group, 4-amino-4,6-dideoxy-d-glucose and 2-amino-2-deoxy-l-guluronic acid. Carbohydr Res 2004; 339:477-82. [PMID: 15013384 DOI: 10.1016/j.carres.2003.11.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2003] [Revised: 11/28/2003] [Accepted: 11/30/2003] [Indexed: 10/26/2022]
Abstract
Mild acid degradation of the lipopolysaccharide of the bacterium Idiomarina zobellii, type strain KMM 231T, with aq 2% HOAc at 100 degrees C, yielded an oligosaccharide, which represents one repeating unit of the O-polysaccharide. A polysaccharide was obtained by mild base degradation of the lipopolysaccharide. The following structure of the O-polysaccharide was elucidated by 1H and 13C NMR spectroscopy of the oligosaccharide and base-degraded lipopolysaccharide, including COSY, TOCSY, ROESY, 1H, 13C HSQC, HSQC-TOCSY and HMBC experiments: [-->3)-alpha-D-Quip4N-(1-->4)-alpha-D-GlcpA-(1-->6)-alpha-D-GlcpNAc-(1-->4)-alpha-L-GulpNA-(1-->3)-beta-D-FucpNAc-(1-->] The O-polysaccharide is distinguished by the presence of two unusual amino sugars, 4-amino-4,6-dideoxy-D-glucose (D-Qui4N) and 2-amino-2-deoxy-L-guluronic acid (L-GulNA), both having the free amino group. The unexpectedly high acid lability of the glycosidic linkage of 2-acetamido-2,6-dideoxy-D-galactose (D-FucNAc) could be associated with the presence of a free amino group adjacent to the site of attachment of FucNAc to Qui4N.
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Affiliation(s)
- Michelle Kilcoyne
- Department of Chemistry, National University of Ireland, Galway, Ireland
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Edge ASB. Deglycosylation of glycoproteins with trifluoromethanesulphonic acid: elucidation of molecular structure and function. Biochem J 2003; 376:339-50. [PMID: 12974674 PMCID: PMC1223790 DOI: 10.1042/bj20030673] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2003] [Revised: 07/29/2003] [Accepted: 09/15/2003] [Indexed: 11/17/2022]
Abstract
The alteration of proteins by post-translational modifications, including phosphorylation, sulphation, processing by proteolysis, lipid attachment and glycosylation, gives rise to a broad range of molecules that can have an identical underlying protein core. An understanding of glycosylation of proteins is important in clarifying the nature of the numerous variants observed and in determining the biological roles of these modifications. Deglycosylation with TFMS (trifluoromethanesulphonic acid) [Edge, Faltynek, Hof, Reichert, and Weber, (1981) Anal. Biochem. 118, 131-137] has been used extensively to remove carbohydrate from glycoproteins, while leaving the protein backbone intact. Glycosylated proteins from animals, plants, fungi and bacteria have been deglycosylated with TFMS, and the most extensively studied types of carbohydrate chains in mammals, the N-linked, O-linked and glycosaminoglycan chains, are all removed by this procedure. The method is based on the finding that linkages between sugars are sensitive to cleavage by TFMS, whereas the peptide bond is stable and is not broken, even with prolonged deglycosylation. The relative susceptibility of individual sugars in glycosidic linkage varies with the substituents at C-2 and the occurrence of amido and acetyl groups, but even the most stable sugars are removed under conditions that are sufficiently mild to prevent scission of peptide bonds. The post-translational modifications of proteins have been shown to be required for diverse biological functions, and selective procedures to remove these modifications play an important role in the elucidation of protein structure and function.
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Affiliation(s)
- Albert S B Edge
- Harvard Medical School and Eaton Peabody Laboratory, Massachusetts Eye and Ear Infirmary, Boston, MA 02114, USA.
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Kondakova AN, Senchenkova SN, Gremyakov AI, Shashkov AS, Knirel YA, Fudala R, Kaca W. Structure of the O-polysaccharide of Proteus mirabilis O38 containing 2-acetamidoethyl phosphate and N-linked d-aspartic acid. Carbohydr Res 2003; 338:2387-92. [PMID: 14572723 DOI: 10.1016/j.carres.2003.07.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The O-antigen of Proteus mirabilis O38 was found to be unique among bacterial polysaccharides and to have the following structure: [carbohydrate structure in text] where D-Qui4N(Ac-D-Asp) is 4-(N-acetyl-D-aspart-4-ylamino)-4,6-dideoxy-D-glucose and AcEtnP is 2-acetamidoethyl phosphate. Neither of these entities have been hitherto found in natural polysaccharides. Structural studies were performed using 1D and 2D NMR spectroscopy, including experiments run in an H2O/D2O mixture to reveal correlations for NH protons. In addition, dephosphorylation, carboxyl reduction and selective cleavages were applied. Solvolysis of the polysaccharide with anhydrous HF gave an alpha-D-GlcNAc-(1-->3)-D-Qui4N(Ac-D-Asp) disaccharide. Solvolysis with trifluoromethanesulfonic (triflic) acid afforded D-GlcNAc6(AcEtnP), thus showing the suitability of this reagent for the preparation of phosphorylated sugar derivatives.
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Affiliation(s)
- Anna N Kondakova
- ND Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow 119991, Russia
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Vinogradov E, MacLean LL, Crump EM, Perry MB, Kay WW. Structure of the polysaccharide chain of the lipopolysaccharide from Flexibacter maritimus. EUROPEAN JOURNAL OF BIOCHEMISTRY 2003; 270:1810-5. [PMID: 12694194 DOI: 10.1046/j.1432-1033.2003.03543.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Flexibacter maritimus, a Gram-negative bacterium, is a fish pathogen responsible for disease in finfish species and a cause of cutaneous erosion disease in sea-caged salmonids. For the development of serology based diagnostics, protective vaccines, and a study of pathogenesis, the structural analysis of the lipopolysaccharide (LPS) produced by the bacterium has been undertaken. We now report that an acidic O-specific polysaccharide, obtained by mild acid degradation of the F. maritimus LPS was found to be composed of a disaccharide repeating unit built of 2-acetamido-3-O-acetyl-4-[(S)-2-hydroxyglutar-5-ylamido]-2,4,6-trideoxy-beta-glucose and 5-acetamido-7-[(S)-3-hydroxybutyramido]-8-amino-3,5,7,8,9-pentadeoxynonulopyranosonic acid (Sug) having the structure: The configuration of the C-2-C-7 fragment of the latter monosaccharide (B) was assigned beta-manno; however, the configuration at C-8 could not be established. NMR data indicate that the two monosaccharides have opposite absolute configurations. The repeating unit includes a linkage via a (S)-2-hydroxyglutaric acid residue, reported here for the first time as a component of a bacterial polysaccharide. The LPS was also found to contain a minor amount of a disaccharide beta-Sug-(2-3)-l-Rha, isolated from the products of the acidic methanolysis of the LPS.
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Affiliation(s)
- Evgeny Vinogradov
- Institute for Biological Sciences, National Research Council, Ottawa, Ontario, Canada
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