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Yang W, Yoshida K, Yang B, Huang X. Obstacles and solutions for chemical synthesis of syndecan-3 (53-62) glycopeptides with two heparan sulfate chains. Carbohydr Res 2016; 435:180-194. [PMID: 27810711 PMCID: PMC5110403 DOI: 10.1016/j.carres.2016.10.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 10/18/2016] [Accepted: 10/19/2016] [Indexed: 12/21/2022]
Abstract
Proteoglycans play critical roles in many biological events. Due to their structural complexities, strategies towards synthesis of this class of glycopeptides bearing well-defined glycan chains are urgently needed. In this work, we give the full account of the synthesis of syndecan-3 glycopeptide (53-62) containing two different heparan sulfate chains. For assembly of glycans, a convergent 3+2+3 approach was developed producing two different octasaccharide amino acid cassettes, which were utilized towards syndecan-3 glycopeptides. The glycopeptides presented many obstacles for post-glycosylation manipulation, peptide elongation, and deprotection. Following screening of multiple synthetic sequences, a successful strategy was finally established by constructing partially deprotected single glycan chain containing glycopeptides first, followed by coupling of the glycan-bearing fragments and cleavage of the acyl protecting groups.
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Affiliation(s)
- Weizhun Yang
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, MI 48824, USA
| | - Keisuke Yoshida
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, MI 48824, USA
| | - Bo Yang
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, MI 48824, USA
| | - Xuefei Huang
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, MI 48824, USA.
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Fluorescently labelled glycans and their applications. Glycoconj J 2015; 32:559-74. [DOI: 10.1007/s10719-015-9611-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 07/13/2015] [Accepted: 07/15/2015] [Indexed: 01/20/2023]
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Yang B, Yoshida K, Yin Z, Dai H, Kavunja H, El-Dakdouki MH, Sungsuwan S, Dulaney SB, Huang X. Chemical synthesis of a heparan sulfate glycopeptide: syndecan-1. Angew Chem Int Ed Engl 2012; 51:10185-9. [PMID: 22961711 PMCID: PMC3517022 DOI: 10.1002/anie.201205601] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Indexed: 11/10/2022]
Abstract
The highly complex structure of syndecan-1 heparan sulfate glycopeptide was successfully assembled. The protective groups utilized and sequences for glycosyl linkage formation and protective group removal are critical for the success of synthesis. This is the first time this type of sulfated glycopeptides has been prepared, which lays the foundation to access other members of this important class of molecules.
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Affiliation(s)
- Bo Yang
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, Michigan 48824 (USA), Fax: (+1) 517-353-1793
| | - Keisuke Yoshida
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, Michigan 48824 (USA), Fax: (+1) 517-353-1793
| | - Zhaojun Yin
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, Michigan 48824 (USA), Fax: (+1) 517-353-1793
| | - Hang Dai
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, Michigan 48824 (USA), Fax: (+1) 517-353-1793
| | - Herbert Kavunja
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, Michigan 48824 (USA), Fax: (+1) 517-353-1793
| | - Mohammad H. El-Dakdouki
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, Michigan 48824 (USA), Fax: (+1) 517-353-1793
| | - Suttipun Sungsuwan
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, Michigan 48824 (USA), Fax: (+1) 517-353-1793
| | - Steven B. Dulaney
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, Michigan 48824 (USA), Fax: (+1) 517-353-1793
| | - Xuefei Huang
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, Michigan 48824 (USA), Fax: (+1) 517-353-1793
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Yang B, Yoshida K, Yin Z, Dai H, Kavunja H, El-Dakdouki MH, Sungsuwan S, Dulaney SB, Huang X. Chemical Synthesis of a Heparan Sulfate Glycopeptide: Syndecan-1. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205601] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Miller-Podraza H, Weikkolainen K, Larsson T, Linde P, Helin J, Natunen J, Karlsson KA. Helicobacter pylori binding to new glycans based on N-acetyllactosamine. Glycobiology 2008; 19:399-407. [PMID: 19106234 DOI: 10.1093/glycob/cwn150] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Previously we reported binding of Helicobacter pylori to various nonacid and sialylated neolacto carbohydrate structures using a wide range of natural and chemically modified sequences. A novel nonsialylated neolacto-based binding epitope, GlcNAc beta 3Gal beta 4GlcNAc, and analogous structures carrying terminal GalNAc beta 3, GalNAc alpha 3, or Gal alpha 3 showed the binding activity (Miller-Podraza H, Lanne B, Angström J, Teneberg S, Abul-Milh M, Jovall P-A, Karlsson H, Karlsson K-A. 2005. Novel binding epitope for Helicobacter pylori found in neolacto carbohydrate chains. J Biol Chem. 280:19695-19703). The present work reports two other H. pylori-binding nonsialylated neolacto-based structures, GlcA beta 3Gal beta 4GlcNAc beta 3-R and Glc beta 3Gal beta 4GlcNAc beta 3-R, and two amide derivatives (N-methyl and N-ethyl) of GlcA beta 3Gal beta 4GlcNAc beta 3-R which were bound by H. pylori. The latter structures turned out to be more effective as H. pylori binders than the parent saccharide. New reducing-end variants of the neolacto epitope including species containing N-acetyllactosamine linked beta 6 to GlcNAc or Gal with similarity to branched polylactosamines and mucins were prepared and tested. The results extend our previous findings on binding specificities of H. pylori and show that this pathogen is able to interact with an array of N-acetyllactosamine/neolacto structures, which may be of importance for the in vivo interaction of the bacterium with human cells. The information gained in this work may also be of value for rational design of anti-H. pylori drugs.
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Affiliation(s)
- Halina Miller-Podraza
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Göteborg University, Box 440, SE 405 30 Göteborg, Sweden.
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Ono Y, Kitajima M, Daikoku S, Shiroya T, Nishihara S, Kanie Y, Suzuki K, Goto S, Kanie O. Sequential enzymatic glycosyltransfer reactions on a microfluidic device: Synthesis of a glycosaminoglycan linkage region tetrasaccharide. LAB ON A CHIP 2008; 8:2168-2173. [PMID: 19023483 DOI: 10.1039/b809316d] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A microfluidic chip carrying three reaction chambers was designed and constructed to examine sequential multiple enzymatic reactions. The synthesis of oligosaccharides in living cells is carried out in the Golgi apparatus where multiple enzymes such as glycosidase and glycosyltransferases act on a variety of substrates to generate glycoconjugates that include glycolipids and glycoproteins. The regulatory mechanism of the process however remains unknown. A microchip-based analysis platform may provide a valuable tool with which to address the issue by mimicking the Golgi function. We thus examined 3 sequential glycosyltransfer reactions on a chip, and succeeded in the synthesis of a tetrasaccharide using immobilized enzymes. Also, the kinetic parameters for a recently identified glycosyltransferase, proteoglycan GalT-I, were obtained for the first time.
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Affiliation(s)
- Yasunari Ono
- Mitsubishi Kagaku Institute of Life Sciences (MITILS), 11 Minamiooya, Machida-shi, Tokyo, 194-8511, Japan
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Fessner WD, Juárez Ruiz JM. Regiospecific synthesis of lactose analog Gal-(β 1,4)-Xyl by transgalactosylation. CAN J CHEM 2002. [DOI: 10.1139/v02-106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A short enzymatic synthesis of disaccharide 4-O-β-D-galactopyranosyl-D-xylose (1) has been developed, which is of interest as a lactose analog for a non-invasive medicinal determination of lactose intolerance. The starting material, benzyl α-D-xyloside, was obtained by a Fischer-type glycosidation of D-xylose with benzyl alcohol, followed by anomeric differentiation of mixed glycosides using a glycosidase from Aspergillus oryzae. From several commercial β-galactosidases, which were screened for their transgalactosylation capacity, the enzyme from Escherichia coli was found to catalyze a virtually regio- and stereospecific galactosyl transfer from donor compounds o-nitrophenyl β-D-galactoside or lactose to the α-D-xyloside. Subsequent hydrogenolytic deprotection furnished desired disaccharide 1.Key words: oligosaccharide synthesis, β-galactosidase, lactose intolerance.
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Fukase K, Yasukochi T, Kusumoto S. Chemoenzymatic Synthesis of a Trisaccharide–Serine Conjugate, Gal(β1-3)Gal(β1-4)Xyl(β1-O)–L-Ser, Use of Galactosyl Fluoride as a Donor for Transglycosylation. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2001. [DOI: 10.1246/bcsj.74.1123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Gill I, Valivety R. Enzymatic Glycosylation in Plasticized Glass Phases: A Novel and Efficient Route to O-Glycosides. Angew Chem Int Ed Engl 2000; 39:3804-3808. [DOI: 10.1002/1521-3773(20001103)39:21<3804::aid-anie3804>3.0.co;2-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2000] [Indexed: 11/12/2022]
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3-Nitro-2-pyridyl glycoside as donor for chemical glycosylation and its application to chemoenzymatic synthesis of oligosaccharide. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(99)01280-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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