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Rush JS, Zamakhaeva S, Murner NR, Deng P, Morris AJ, Kenner CW, Black I, Heiss C, Azadi P, Korotkov KV, Widmalm G, Korotkova N. Structure and mechanism of biosynthesis of Streptococcus mutans cell wall polysaccharide. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.09.593426. [PMID: 38766245 PMCID: PMC11100793 DOI: 10.1101/2024.05.09.593426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Streptococcus mutans, the causative agent of human dental caries, expresses a cell wall attached Serotype c- specific Carbohydrate (SCC) that is critical for cell viability. SCC consists of a repeating →3)α-Rha(1→2)α-Rha(1→ polyrhamnose backbone, with glucose (Glc) side-chains and glycerol phosphate (GroP) decorations. This study reveals that SCC has one major and two minor Glc modifications. The major Glc modification, α-Glc, attached to position 2 of 3-rhamnose, is installed by SccN and SccM glycosyltransferases and is the site of the GroP addition. The minor Glc modifications are β-Glc linked to position 4 of 3-rhamnose installed by SccP and SccQ glycosyltransferases, and α-Glc attached to position 4 of 2-rhamnose installed by SccN working in tandem with an unknown enzyme. Both the major and the minor β-Glc modifications control bacterial morphology, but only the GroP and major Glc modifications are critical for biofilm formation.
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2
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Mong KKT, Cheng KC, Lu IC, Pan CW, Wang YF, Shen LC. Cascade In Situ Phosphorylation and One-Pot Glycosylation for Rapid Synthesis of Heptose-Containing Oligosaccharides. J Org Chem 2020; 85:16060-16071. [PMID: 33236906 DOI: 10.1021/acs.joc.0c01828] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We report a one-pot glycosylation strategy for achieving rapid syntheses of heptose (Hep)-containing oligosaccharides. The reported procedure was designed to incorporate an in situ phosphorylation step into an orthogonal one-pot glycosylation. Hep-containing oligosaccharides were assembled directly from building blocks with minimal effort expended on manipulation of protecting and aglycone leaving groups. The utility of our one-pot procedure was illustrated by synthesizing partial core oligosaccharide structure present in the lipopolysaccharide of Ralstonia solanacearum.
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Affiliation(s)
- Kwok-Kong Tony Mong
- Applied Chemistry Department, National Chiao Tung University 1001 University Road, Hsinchu City, Taiwan 30010, ROC
| | - Kuang-Chun Cheng
- Applied Chemistry Department, National Chiao Tung University 1001 University Road, Hsinchu City, Taiwan 30010, ROC
| | - I-Chen Lu
- Applied Chemistry Department, National Chiao Tung University 1001 University Road, Hsinchu City, Taiwan 30010, ROC
| | - Chia-Wei Pan
- Applied Chemistry Department, National Chiao Tung University 1001 University Road, Hsinchu City, Taiwan 30010, ROC
| | - Yi-Fang Wang
- Applied Chemistry Department, National Chiao Tung University 1001 University Road, Hsinchu City, Taiwan 30010, ROC
| | - Li-Ching Shen
- Applied Chemistry Department, National Chiao Tung University 1001 University Road, Hsinchu City, Taiwan 30010, ROC
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Daikoku S, Pendrill R, Kanie Y, Ito Y, Widmalm G, Kanie O. Synthesis and structural investigation of a series of mannose-containing oligosaccharides using mass spectrometry. Org Biomol Chem 2018; 16:228-238. [PMID: 29234770 DOI: 10.1039/c7ob02723k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of compounds associated with naturally occurring and biologically relevant glycans consisting of α-mannosides were prepared and analyzed using collision-induced dissociation (CID), energy-resolved mass spectrometry (ERMS), and 1H nuclear magnetic resonance spectroscopy. The CID experiments of sodiated species of disaccharides and ERMS experiments revealed that the order of stability of mannosyl linkages was as follows: 6-linked > 4-linked ≧ 2-linked > 3-linked mannosyl residues. Analysis of linear trisaccharides revealed that the order observed in disaccharides could be applied to higher glycans. A branched trisaccharide showed a distinct dissociation pattern with two constituting disaccharide ions. The estimation of the content of this ion mixture was possible using the disaccharide spectra. The hydrolysis of mannose linkages at 3- and 6-positions in the branched trisaccharide revealed that the 3-linkage was cleaved twice as fast as the 6-linkage. It was observed that the solution-phase hydrolysis and gas-phase dissociation have similar energetics.
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Affiliation(s)
- S Daikoku
- Department of Applied Biochemistry, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan.
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Liu L, Li C, Cochran S, Feder D, Guddat LW, Ferro V. A focused sulfated glycoconjugate Ugi library for probing heparan sulfate-binding angiogenic growth factors. Bioorg Med Chem Lett 2012; 22:6190-4. [DOI: 10.1016/j.bmcl.2012.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Revised: 07/23/2012] [Accepted: 08/01/2012] [Indexed: 11/30/2022]
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5
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Wu Y, Cui W, Eskin N, Goff H, Nikiforuk J. NMR analysis of a methylated non-pectic polysaccharide from water soluble yellow mustard mucilage. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2010.10.058] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Fournière V, Cumpstey I. Synthesis of non-glycosidically linked selenoether pseudodisaccharides. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.02.064] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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7
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Vilchez S, Lundborg M, Urbina F, Weintraub A, Widmalm G. Structural studies of the O-antigenic polysaccharides from the enteroaggregative Escherichia coli strain 94/D4 and the international type strain Escherichia coli O82. Carbohydr Res 2009; 344:2528-32. [PMID: 19836728 DOI: 10.1016/j.carres.2009.09.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2009] [Revised: 09/28/2009] [Accepted: 09/29/2009] [Indexed: 10/20/2022]
Abstract
The structure of the O-antigen polysaccharides (PS) from the enteroaggregative Escherichia coli strain 94/D4 and the international type strain E. coli O82 have been determined. Component analysis and (1)H, (13)C, and (31)P NMR spectroscopy experiments were employed to elucidate the structure. Inter-residue correlations were determined by (1)H, (13)C-heteronuclear multiple-bond correlation, and (1)H, (1)H-NOESY experiments. D-GroA as a substituent is linked via its O-2 in a phosphodiester-linkage to O-6 of the alpha-D-Glcp residue. The PS is composed of tetrasaccharide repeating units with the following structure: -->4)-alpha-D-Glcp6-(P-2-D-GroA)-(1-->4)-beta-D-Galp-(1-->4)-beta-D-Glcp-(1-->3)-beta-D-GlcpNAc-(1--> Cross-peaks of low intensity from an alpha-D-Glcp residue were present in the NMR spectra and spectral analysis indicates that they originate from the terminal residue of the polysaccharide. Consequently, the biological repeating unit has a 3-substituted N-acetyl-D-glucosamine residue at its reducing end. Enzyme immunoassay using specific anti-E. coli O82 rabbit sera showed identical reactivity to the LPS of the two strains, in agreement with the structural analysis of their O-antigen polysaccharides.
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Affiliation(s)
- Samuel Vilchez
- Department of Microbiology, Faculty of Medical Sciences, National Autonomous University of Nicaragua León, Nicaragua
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Turek D, Sundgren A, Lahmann M, Oscarson S. Synthesis of oligosaccharides corresponding to Vibrio cholerae O139 polysaccharide structures containing dideoxy sugars and a cyclic phosphate. Org Biomol Chem 2006; 4:1236-41. [PMID: 16557311 DOI: 10.1039/b518125a] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A spacer-equipped tetrasaccharide, p-aminocyclohexylethyl alpha-l-Colp-(1-->2)-beta-d-Galp-(1-->3)-[alpha-l-Colp-(1-->4)]-beta-D-GlcpNAc, containing a 4,6-cyclic phosphate in the galactose residue, has been synthesised. The structure corresponds to a part of the repeating unit of the capsular (and lipo-) polysaccharide of the endemic bacteria Vibrio cholerae type O139 synonym Bengal. The synthetic strategy allows continuous syntheses of the complete O139 hexasaccharide repeating unit as well as of the structurally related repeating unit of serotype O22. Starting from ethyl 2-azido-4,6-O-benzylidene-2-deoxy-1-thio-beta-D-glucopyranoside, a thioglycoside tetrasaccharide donor block was constructed through two orthogonal glycosylations with glycosyl bromide donors. First, a properly protected galactose moiety was introduced using silver triflate as promoter and subsequently the two colitose residues, carrying electron-withdrawing protecting groups for stability reasons, under halide-assisted conditions. The tetrasaccharide block was then linked to the spacer in a NIS-TMSOTf-promoted coupling. Transformation of the azido group into an acetamido group using H2S followed by removal of temporary protecting acetyl groups gave a 4',6'-diol, which was next phosphorylated with methyl dichlorophosphate and deprotected to yield the 4,6-cyclic phosphate tetrasaccharide target structure.
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Affiliation(s)
- Dominika Turek
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91, Stockholm, Sweden
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Höög C, Laaksonen A, Widmalm G. Molecular Dynamics Simulations of the Phosphodiester-Linked Repeating Units of the Haemophilus influenzae Types c and f Capsular Polysaccharides. J Phys Chem B 2001. [DOI: 10.1021/jp0041555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christer Höög
- Department of Organic Chemistry and Division of Physical Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden
| | - Aatto Laaksonen
- Department of Organic Chemistry and Division of Physical Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden
| | - Göran Widmalm
- Department of Organic Chemistry and Division of Physical Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden
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Ricci S, Bardotti A, D'Ascenzi S, Ravenscroft N. Development of a new method for the quantitative analysis of the extracellular polysaccharide of Neisseria meningitidis serogroup A by use of high-performance anion-exchange chromatography with pulsed-amperometric detection. Vaccine 2001; 19:1989-97. [PMID: 11228369 DOI: 10.1016/s0264-410x(00)00427-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A new method for the quantitative determination of Neisseria meningitidis group A (MenA) capsular polysaccharide (CPS) has been developed. The method is based on trifluoracetic acid (TFA) hydrolysis of the CPS (2 M at 80 degrees C for 3 h), followed by chromatographic separation and quantification of the liberated mannosamine-6-phosphate from the area of the peak obtained using an IonPac AS11 column coupled to the sensitive pulsed amperometric detector ED40. The highly selective nature of this method circumvents the interference problems associated with the classical method based on a colorimetric assay for phosphorus. Provided that suitable hydrolysis conditions can be found, this chromatographic approach might be applicable to the quantification of other bacterial antigens containing phosphorylated sugars such as meningococcal groups H, L, X and Z, and pneumococcal serotypes 6, 10A and 19.
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Affiliation(s)
- S Ricci
- Chiron Vaccines SpA, Via Fiorentina 1, I-53100, Siena, Italy.
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Stewart A, Bernlind C, Martin A, Oscarson S, Richards JC, Schweda EK. Studies of alkaline mediated phosphate migration in synthetic phosphoethanolamine l-glycero-d-manno-heptoside derivatives. Carbohydr Res 1998. [DOI: 10.1016/s0008-6215(98)00271-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Five monophosphates of methyl l-glycero-α-d-manno-heptopyranoside: synthesis, hydrolysis and migrations. Carbohydr Res 1998. [DOI: 10.1016/s0008-6215(98)00037-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Garegg PJ, Olsson L, Oscarson S. Synthesis of oligosaccharides corresponding to structures found in capsular polysaccharides of Cryptococcus neoformans--II. Bioorg Med Chem 1996; 4:1867-71. [PMID: 9007271 DOI: 10.1016/s0968-0896(96)00168-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Formula 1 depicts a generalized structure of the capsular polysaccharides of four serotypes of the opportunistic microorganism Cryptococcus neoformans, which appears as one of the major infections in the late stages of development of AIDS. Syntheses are now described of two tetrasaccharides with corresponding structures. These are methyl O-alpha-D-mannopyranosyl-(1-->3)-[O-beta-D-xylopyranosyl-(1-->2)] -O-alpha-D-mannopyranosyl-(1-->3)-alpha-D-mannopyranoside and methyl O-alpha-D-mannopyranosyl-(1-->3)-[O-beta-D-glucopyranosyluronic acid-(1-->2)]-O-alpha-D-mannopyranosyl-(1-->3)-alpha-D-mannopyranoside.
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Affiliation(s)
- P J Garegg
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Sweden
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Parolis LA, Duus JO, Parolis H, Meldal M, Bock K. The extracellular polysaccharide of Pichia (Hansenula) holstii NRRL Y-2448: the structure of the phosphomannan backbone. Carbohydr Res 1996; 293:101-17. [PMID: 8916546 DOI: 10.1016/0008-6215(96)00190-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The phosphomannan core of the exopolysaccharide of Pichia (Hansenula) holstii NRRL Y-2448 was isolated after hydrolytic removal of the oligosaccharide phosphate side-chains. The core polysaccharide and its dephosphorylated derivative were subjected to extensive 1D and 2D NMR spectroscopy which yielded information on the linkage sites and on the sequence of the mannosyl residues in the major oligosaccharide repeating unit. The most probable structure for the repeating unit was -[6-O-PO3H2-alpha-D-Man-(1-->3)-alpha-D-Man-(1-->2)-alpha-D-Man-(1 -->2)]-alpha-D-Man-(1-->6)-[alpha-D-Man-(1-->2)]-alpha-D-Man-(1-->6)-. A semiquantitative conformational analysis was performed by Monte Carlo simulations and the result was confirmed by comparison with the experimentally determined NMR data. The distance distribution for the phosphate groups was determined from the modeling and was found to cover the expected range of distances for phosphorylated high-mannose oligosaccharides.
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Affiliation(s)
- L A Parolis
- Department of Chemistry, Carlsberg Laboratory, Valby, Denmark
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Oscarson S, Tedebark U. Syntheses of deoxy analogues of methyl 3,6-di-O-alpha-D-mannopyranosyl-alpha-D-mannopyranoside for studies of the binding site of concanavalin A. Carbohydr Res 1995; 278:271-87. [PMID: 8590445 DOI: 10.1016/0008-6215(95)00268-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
All of the monodeoxy analogues of methyl 3,6-di-O-alpha-D-mannopyranosyl-alpha-D-mannopyranoside have been synthesized together with two dideoxy (2,3'- and 4,3'-) analogues. The 2'- and 2"-deoxy functions were introduced by NIS-promoted couplings with 2,3,4-tri-O-acetyl-D-glucal as donor, followed by reduction of the resulting 2'- and 2"-iodo derivatives, whereas the 3'-, 3"-, 4'-, 4"-, 6'-, and 6"-deoxy functions were introduced by using known deoxyglycosyl chlorides as donors in coupling reactions promoted by silver trifluoromethanesulfonate. The 2- and 4-deoxy functions on the central mannose residue were introduced by displacement, using triiodoimidazole and triphenylphosphine, of a hydroxyl group by iodine on suitably protected derivatives followed by reduction of the resulting iodo analogues.
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Affiliation(s)
- S Oscarson
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Sweden
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Ekelöf K, Oscarson S. Syntheses of 4- and/or 4′-Phosphate Derivatives of Methyl 3-O-l-Glycero-α-d-manno-heptopyranosyl-l-glyceroα-d-manno-heptopyranoside and Their 2-(4-Trifluoro-acetamidophenyl)ethyl Glycoside Analogues. J Carbohydr Chem 1995. [DOI: 10.1080/07328309508002073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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