1
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Fukase K, Manabe Y, Shimoyama A. Diacetyl strategy for synthesis of NHAc containing glycans: enhancing glycosylation reactivity via diacetyl imide protection. Front Chem 2023; 11:1319883. [PMID: 38116104 PMCID: PMC10728286 DOI: 10.3389/fchem.2023.1319883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 11/21/2023] [Indexed: 12/21/2023] Open
Abstract
The presence of NHAc groups in the substrates (both glycosyl donors and acceptors) significantly reduced the reactivity of glycosylation. This decrease was attributed to the NHAc groups forming intermolecular hydrogen bonds by the NHAc groups, thereby reducing molecular mobility. Hence, a diacetyl strategy involving the temporary conversion of NHAc to diacetyl imide (NAc2) was developed for the synthesis of NHAc-containing glycans. This strategy has two significant advantages for oligosaccharide synthesis. The NAc2 protection of NHAc substantially enhances the rate of glycosylation reactions, resulting in improved yields. Moreover, NAc2 can be readily reverted to NHAc by the simple removal of one acetyl group under mild basic conditions, obviating the necessity for treating the polar amino group. We have achieved the efficient synthesis of oligosaccharides containing GlcNHAc and N-glycans containing sialic acid using the diacetyl strategy.
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Affiliation(s)
- Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, Osaka, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, Osaka, Japan
| | - Yoshiyuki Manabe
- Department of Chemistry, Graduate School of Science, Osaka University, Osaka, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, Osaka, Japan
| | - Atsushi Shimoyama
- Department of Chemistry, Graduate School of Science, Osaka University, Osaka, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, Osaka, Japan
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2
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Crawford CJ, Seeberger PH. Advances in glycoside and oligosaccharide synthesis. Chem Soc Rev 2023; 52:7773-7801. [PMID: 37830906 DOI: 10.1039/d3cs00321c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
The structural complexity of glycans poses a serious challenge in the chemical synthesis of glycosides, oligosaccharides and glycoconjugates. Glycan complexity, determined by composition, connectivity, and configuration far exceeds what nature achieves with nucleic acids and proteins. Consequently, glycoside synthesis ranks among the most complex tasks in organic synthesis, despite involving only a simple type of bond-forming reaction. Here, we introduce the fundamental principles of glycoside bond formation and summarize recent advances in glycoside bond formation and oligosaccharide synthesis.
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Affiliation(s)
- Conor J Crawford
- Department of Biomolecular Systems, Max Planck Institute for Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany.
| | - Peter H Seeberger
- Department of Biomolecular Systems, Max Planck Institute for Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany.
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
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3
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Ma W, Xu Z, Jiang Y, Liu J, Xu D, Huang W, Li T. Divergent Enzymatic Assembly of a Comprehensive 64-Membered IgG N-Glycan Library for Functional Glycomics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303832. [PMID: 37632720 PMCID: PMC10602528 DOI: 10.1002/advs.202303832] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/25/2023] [Indexed: 08/28/2023]
Abstract
N-Glycosylation, a main post-translational modification of Immunoglobulin G (IgG), plays a significant role in modulating the immune functions of IgG. However, the precise function elucidation of IgG N-glycosylation remains impeded due to the obstacles in obtaining comprehensive and well-defined N-glycans. Here, an easy-to-implement divergent approach is described to synthesize a 64-membered IgG N-glycan library covering all possible biantennary and bisected N-glycans by reprogramming biosynthetic assembly lines based on the inherent branch selectivity and substrate specificity of enzymes. The unique binding specificities of 64 N-glycans with different proteins are deciphered by glycan microarray technology. This unprecedented collection of synthetic IgG N-glycans can serve as standards for N-glycan structure identification in complex biological samples and the microarray data enrich N-glycan glycomics to facilitate biomedical applications.
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Affiliation(s)
- Wenjing Ma
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhuojia Xu
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuhan Jiang
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Jialin Liu
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Dandan Xu
- School of Pharmaceutical Science and Technology, Hangzhou Institute of Advanced Study, Hangzhou, 310024, China
| | - Wei Huang
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmaceutical Science and Technology, Hangzhou Institute of Advanced Study, Hangzhou, 310024, China
| | - Tiehai Li
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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4
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Dhara D, Dhara A, Murphy PV, Mulard LA. Protecting group principles suited to late stage functionalization and global deprotection in oligosaccharide synthesis. Carbohydr Res 2022; 521:108644. [PMID: 36030632 DOI: 10.1016/j.carres.2022.108644] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/28/2022] [Accepted: 07/31/2022] [Indexed: 11/02/2022]
Abstract
Chemical synthesis is a powerful tool to access homogeneous complex glycans, which relies on protecting group (PG) chemistry. However, the overall efficiency of chemical glycan assembly is still low when compared to oligonucleotide or oligopeptide synthesis. There have been many contributions giving rise to collective improvement in carbohydrate synthesis that includes PG manipulation and stereoselective glycoside formation and some of this chemistry has been transferred to the solid phase or adapted for programmable one pot synthesis approaches. However, after all glycoside bond formation reactions are completed, the global deprotection (GD) required to give the desired target OS can be challenging. Difficulties observed in the removal of permanent PGs to release the desired glycans can be due to the number and diversity of PGs present in the protected OSs, nature and structural complexity of glycans, etc. Here, we have reviewed the difficulties associated with the removal of PGs from densely protected OSs to obtain their free glycans. In particularly, this review focuses on the challenges associated with hydrogenolysis of benzyl groups, saponification of esters and functional group interconversion such as oxidation/reduction that are commonly performed in GD stage. More generally, problems observed in the removal of permanent PGs is reviewed herein, including benzyl, acyl (levulinoyl, acetyl), N-trichloroacetyl, N-2,2,2-trichloroethoxycarbonyl, N-phthaloyl etc. from a number of fully protected OSs to release the free sugar, that have been previously reported in the literature.
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Affiliation(s)
- Debashis Dhara
- Institut Pasteur, Université Paris Cité, CNRS UMR 3523, Unité de Chimie des Biomolécules, 25-28 rue du Dr Roux, 75015, Paris, France; School of Biological and Chemical Sciences, NUI Galway, University Road, Galway, H91 TK33, Ireland.
| | - Ashis Dhara
- School of Biological and Chemical Sciences, NUI Galway, University Road, Galway, H91 TK33, Ireland
| | - Paul V Murphy
- School of Biological and Chemical Sciences, NUI Galway, University Road, Galway, H91 TK33, Ireland; SSPC - The Science Foundation Ireland Research Centre for Pharmaceuticals, NUI Galway, University Road, Galway, H91 TK33, Ireland
| | - Laurence A Mulard
- Institut Pasteur, Université Paris Cité, CNRS UMR 3523, Unité de Chimie des Biomolécules, 25-28 rue du Dr Roux, 75015, Paris, France
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5
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Chen Q, Zhang Y, Zhang K, Liu J, Pan H, Wang X, Li S, Hu D, Lin Z, Zhao Y, Hou G, Guan F, Li H, Liu S, Ren Y. Profiling the Bisecting N-acetylglucosamine Modification in Amniotic Membrane via Mass Spectrometry. GENOMICS, PROTEOMICS & BIOINFORMATICS 2022; 20:648-656. [PMID: 35123071 PMCID: PMC9880894 DOI: 10.1016/j.gpb.2021.09.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 08/30/2021] [Accepted: 10/11/2021] [Indexed: 01/31/2023]
Abstract
Bisecting N-acetylglucosamine (GlcNAc), a GlcNAc linked to the core β-mannose residue via a β1,4 linkage, is a special type of N-glycosylation that has been reported to be involved in various biological processes, such as cell adhesion and fetal development. This N-glycan structure is abundant in human trophoblasts, which is postulated to be resistant to natural killer cell-mediated cytotoxicity, enabling a mother to nourish a fetus without rejection. In this study, we hypothesized that the human amniotic membrane, which serves as the last barrier for the fetus, may also express bisected-type glycans. To test this hypothesis, glycomic analysis of the human amniotic membrane was performed, and bisected N-glycans were detected. Furthermore, our proteomic data, which have been previously employed to explore human missing proteins, were analyzed and the presence of bisecting GlcNAc-modified peptides was confirmed. A total of 41 glycoproteins with 43 glycopeptides were found to possess a bisecting GlcNAc, and 25 of these glycoproteins were reported to exhibit this type of modification for the first time. These results provide insights into the potential roles of bisecting GlcNAc modification in the human amniotic membrane, and can be beneficial to functional studies on glycoproteins with bisecting GlcNAc modifications and functional studies on immune suppression in human placenta.
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Affiliation(s)
| | | | | | - Jie Liu
- BGI-Shenzhen, Shenzhen 518083, China
| | | | | | - Siqi Li
- BGI-Shenzhen, Shenzhen 518083, China
| | - Dandan Hu
- BGI-Shenzhen, Shenzhen 518083, China
| | | | - Yun Zhao
- BGI-Shenzhen, Shenzhen 518083, China
| | | | - Feng Guan
- Joint International Research Laboratory of Glycobiology and Medical Chemistry, College of Life Sciences, Northwest University, Xi’an 710069, China
| | - Hong Li
- Shenzhen Seventh People's Hospital, Shenzhen 518081, China
| | - Siqi Liu
- BGI-Shenzhen, Shenzhen 518083, China,Corresponding authors.
| | - Yan Ren
- BGI-Shenzhen, Shenzhen 518083, China,Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China,Corresponding authors.
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6
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Shiratori K, Yokoi Y, Wakui H, Hirane N, Otaki M, Hinou H, Yoneyama T, Hatakeyama S, Kimura S, Ohyama C, Nishimura SI. Selective reaction monitoring approach using structure-defined synthetic glycopeptides for validating glycopeptide biomarkers pre-determined by bottom-up glycoproteomics. RSC Adv 2022; 12:21385-21393. [PMID: 35975084 PMCID: PMC9347767 DOI: 10.1039/d2ra02903k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 07/07/2022] [Indexed: 11/21/2022] Open
Abstract
Clusterin is a heavily glycosylated protein that is upregulated in various cancer and neurological diseases. The findings by the Hancock and Iliopoulos group that levels of the tryptic glycopeptide derived from plasma clusterin, 372Leu-Ala-Asn-Leu-Thr-Gln-Gly-Glu-Asp-Gln-Tyr-Tyr-Leu-Arg385 with a biantennary disialyl N-glycan (A2G2S2 or FA2G2S2) at Asn374 differed significantly prior to and after curative nephrectomy for clear cell renal cell carcinoma (RCC) patients motivated us to verify the feasibility of this glycopeptide as a novel biomarker of RCC. To determine the precise N-glycan structure attached to Asn374, whether A2G2S2 is composed of the Neu5Acα2,3Gal or/and the Neu5Acα2,6Gal moiety, we synthesized key glycopeptides having one of the two putative isomers. Selective reaction monitoring assay using synthetic glycopeptides as calibration standards allowed "top-down glycopeptidomics" for the absolute quantitation of targeted label-free glycopeptides in a range from 313.3 to 697.5 nM in the complex tryptic digests derived from serum samples of RCC patients and healthy controls. Our results provided evidence that the Asn374 residue of human clusterin is modified dominantly with the Neu5Acα2,6Gal structure and the levels of clusterin bearing an A2G2S2 with homo Neu5Acα2,6Gal terminals at Asn374 decrease significantly in RCC patients as compared with healthy controls. The present study elicits that a new strategy integrating the bottom-up glycoproteomics with top-down glycopeptidomics using structure-defined synthetic glycopeptides enables the confident identification and quantitation of the glycopeptide targets pre-determined by the existing methods for intact glycopeptide profiling.
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Affiliation(s)
- Kouta Shiratori
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
| | - Yasuhiro Yokoi
- ENU Pharma, Co., Ltd N7, W6, Kita-ku Sapporo 060-0807 Japan
| | - Hajime Wakui
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
| | - Nozomi Hirane
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
| | - Michiru Otaki
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
| | - Hiroshi Hinou
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
| | - Tohru Yoneyama
- Department of Urology, Graduate School of Medicine, Hirosaki University Hirosaki 036-8562 Japan
| | - Shingo Hatakeyama
- Department of Urology, Graduate School of Medicine, Hirosaki University Hirosaki 036-8562 Japan
| | - Satoshi Kimura
- Department of Laboratory Medicine and Central Clinical Laboratory, Showa University, Northern Yokohama Hospital Yokohama 224-8503 Japan
| | - Chikara Ohyama
- Department of Urology, Graduate School of Medicine, Hirosaki University Hirosaki 036-8562 Japan
| | - Shin-Ichiro Nishimura
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
- ENU Pharma, Co., Ltd N7, W6, Kita-ku Sapporo 060-0807 Japan
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7
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Cao X, Wang S, Gadi MR, Liu D, Wang PG, Wan XF, Zhang J, Chen X, Pepi LE, Azadi P, Li L. Systematic synthesis of bisected N-glycans and unique recognitions by glycan-binding proteins. Chem Sci 2022; 13:7644-7656. [PMID: 35872821 PMCID: PMC9241959 DOI: 10.1039/d1sc05435j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 05/29/2022] [Indexed: 12/13/2022] Open
Abstract
Bisected N-glycans represent a unique class of protein N-glycans that play critical roles in many biological processes. Herein, we describe the systematic synthesis of these structures. A bisected N-glycan hexasaccharide was chemically assembled with two orthogonal protecting groups attached at the C2 of the branching mannose residues, followed by sequential installation of GlcNAc and LacNAc building blocks to afford two asymmetric bisecting "cores". Subsequent enzymatic modular extension of the "cores" yielded a comprehensive library of biantennary N-glycans containing the bisecting GlcNAc and presenting 6 common glycan determinants in a combinatorial fashion. These bisected N-glycans and their non-bisected counterparts were used to construct a distinctive glycan microarray to study their recognition by a wide variety of glycan-binding proteins (GBPs), including plant lectins, animal lectins, and influenza A virus hemagglutinins. Significantly, the bisecting GlcNAc could bestow (PHA-L, rDCIR2), enhance (PHA-E), or abolish (ConA, GNL, anti-CD15s antibody, etc.) N-glycan recognition of specific GBPs, and is tolerated by many others. In summary, synthesized compounds and the unique glycan microarray provide ideal standards and tools for glycoanalysis and functional glycomic studies. The microarray data provide new information regarding the fine details of N-glycan recognition by GBPs, and in turn improve their applications.
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Affiliation(s)
- Xuefeng Cao
- Department of Chemistry, Georgia State UniversityAtlantaGAUSA
| | - Shuaishuai Wang
- Department of Chemistry, Georgia State UniversityAtlantaGAUSA
| | | | - Ding Liu
- Department of Chemistry, Georgia State UniversityAtlantaGAUSA
| | - Peng G. Wang
- Department of Chemistry, Georgia State UniversityAtlantaGAUSA
| | - Xiu-Feng Wan
- MU Center for Research on Influenza Systems Biology (CRISB), University of MissouriColumbiaMOUSA,Department of Molecular Microbiology and Immunology, School of Medicine, University of MissouriColumbiaMOUSA,Bond Life Sciences Center, University of MissouriColumbiaMOUSA,Department of Electrical Engineering & Computer Science, College of Engineering, University of MissouriColumbiaMOUSA
| | | | - Xi Chen
- Department of Chemistry, University of CaliforniaOne Shields AvenueDavisCAUSA
| | - Lauren E. Pepi
- Complex Carbohydrate Research Center, University of GeorgiaAthensGAUSA
| | - Parastoo Azadi
- Complex Carbohydrate Research Center, University of GeorgiaAthensGAUSA
| | - Lei Li
- Department of Chemistry, Georgia State UniversityAtlantaGAUSA
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8
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Ponnapalli KK, Ho YC, Tseng MC, Sekhar Vasamsetti BV, Shie JJ. One-Pot Glycosylation Strategy Assisted by Ion Mobility-Mass Spectrometry Analysis toward the Synthesis of N-Linked Oligosaccharides. J Org Chem 2022; 87:5339-5357. [PMID: 35377640 DOI: 10.1021/acs.joc.2c00184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
N-Glycans are major constituents of several cellular glycoproteins. One-pot strategies for the synthesis of N-glycans are crucial for the rapid generation of pure samples to determine their biological functions. Herein, we describe a double one-pot strategy for the synthesis of N-glycans assisted by an IM-MS analysis approach for rapid screening of optimized glycosylation reaction conditions. This research includes triflate-mediated direct β-mannosylation and tandem glycosylation in a one-pot strategy for the synthesis of the challenging N-linked trisaccharide core β-5. Furthermore, a one-pot sequential glycosylation of the N-linked trisaccharide core 7 furnishes diverse high-mannose type N-glycans with excellent stereo- and regioselectivities. In particular, ion mobility-mass spectrometry-based quantitative analysis is applied to identify the stereo- and regioselective outcomes of the crude reaction mixtures to develop a highly efficient one-pot protocol.
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Affiliation(s)
| | - Yi-Chi Ho
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Mei-Chun Tseng
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | | | - Jiun-Jie Shie
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
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9
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Shirakawa A, Manabe Y, Marchetti R, Yano K, Masui S, Silipo A, Molinaro A, Fukase K. Chemical Synthesis of Sialyl
N
‐Glycans and Analysis of Their Recognition by Neuraminidase. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202111035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Asuka Shirakawa
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Yoshiyuki Manabe
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
- Core for Medicine and Science Collaborative Research and Education Project Research Center for Fundamental Sciences Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Roberta Marchetti
- Department of Chemical Science University of Naples Federico II Via Cinthia 4 80126 Naples Italy
| | - Kumpei Yano
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Seiji Masui
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Alba Silipo
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
- Department of Chemical Science University of Naples Federico II Via Cinthia 4 80126 Naples Italy
| | - Antonio Molinaro
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
- Department of Chemical Science University of Naples Federico II Via Cinthia 4 80126 Naples Italy
| | - Koichi Fukase
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
- Core for Medicine and Science Collaborative Research and Education Project Research Center for Fundamental Sciences Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
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10
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Shirakawa A, Manabe Y, Marchetti R, Yano K, Masui S, Silipo A, Molinaro A, Fukase K. Chemical Synthesis of Sialyl N-Glycans and Analysis of Their Recognition by Neuraminidase. Angew Chem Int Ed Engl 2021; 60:24686-24693. [PMID: 34520098 DOI: 10.1002/anie.202111035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Indexed: 11/07/2022]
Abstract
The chemical synthesis of a fully sialylated tetraantennary N-glycan has been achieved for the first time by using the diacetyl strategy, in which NHAc is protected as NAc2 to improve reactivity by preventing intermolecular hydrogen bonds. Another key was the glycosylation to the branched mannose in an ether solvent, which promoted the desired glycosylation by stabilizing the oxocarbenium ion intermediate. Furthermore, high α-selectivity of these glycosylation reactions was realized by utilizing remote participation. Two asymmetrically deuterium labeled sialyl N-glycans were also synthesized by the same strategy. The synthesized N-glycans were used to probe the molecular basis of H1N1 neuraminidase recognition. The asymmetrically deuterated N-glycans revealed a difference in the recognition of sialic acid on each branch. Meanwhile, the tetraantennary N-glycan was used to evaluate the effects of multivalency and steric hinderance by forming branching structures.
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Affiliation(s)
- Asuka Shirakawa
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Yoshiyuki Manabe
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Roberta Marchetti
- Department of Chemical Science, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Kumpei Yano
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Seiji Masui
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Alba Silipo
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Department of Chemical Science, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Antonio Molinaro
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Department of Chemical Science, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
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11
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Reif A, Lam K, Weidler S, Lott M, Boos I, Lokau J, Bretscher C, Mönnich M, Perkams L, Schmälzlein M, Graf C, Fischer J, Lechner C, Hallstein K, Becker S, Weyand M, Steegborn C, Schultheiss G, Rose‐John S, Garbers C, Unverzagt C. Natural Glycoforms of Human Interleukin 6 Show Atypical Plasma Clearance. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Andreas Reif
- Bioorganic Chemistry University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Kevin Lam
- Bioorganic Chemistry University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Sascha Weidler
- Bioorganic Chemistry University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Marie Lott
- Bioorganic Chemistry University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Irene Boos
- Bioorganic Chemistry University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Juliane Lokau
- Department of Pathology Medical Faculty Otto von Guericke University Magdeburg 39120 Magdeburg Germany
| | | | - Manuel Mönnich
- Bioorganic Chemistry University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Lukas Perkams
- Bioorganic Chemistry University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Marina Schmälzlein
- Bioorganic Chemistry University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Christopher Graf
- Bioorganic Chemistry University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Jan‐Patrick Fischer
- Bioorganic Chemistry University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Carolin Lechner
- Bioorganic Chemistry University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Kerstin Hallstein
- Protein Engineering & Antibody Technologies Merck Healthcare KGaA Frankfurter Str. 250 64293 Darmstadt Germany
| | - Stefan Becker
- Protein Engineering & Antibody Technologies Merck Healthcare KGaA Frankfurter Str. 250 64293 Darmstadt Germany
| | - Michael Weyand
- Department of Biochemistry University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Clemens Steegborn
- Department of Biochemistry University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | | | | | - Christoph Garbers
- Department of Pathology Medical Faculty Otto von Guericke University Magdeburg 39120 Magdeburg Germany
| | - Carlo Unverzagt
- Bioorganic Chemistry University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
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12
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Reif A, Lam K, Weidler S, Lott M, Boos I, Lokau J, Bretscher C, Mönnich M, Perkams L, Schmälzlein M, Graf C, Fischer JP, Lechner C, Hallstein K, Becker S, Weyand M, Steegborn C, Schultheiss G, Rose-John S, Garbers C, Unverzagt C. Natural Glycoforms of Human Interleukin 6 Show Atypical Plasma Clearance. Angew Chem Int Ed Engl 2021; 60:13380-13387. [PMID: 33756033 PMCID: PMC8251587 DOI: 10.1002/anie.202101496] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Indexed: 12/18/2022]
Abstract
A library of glycoforms of human interleukin 6 (IL‐6) comprising complex and mannosidic N‐glycans was generated by semisynthesis. The three segments were connected by sequential native chemical ligation followed by two‐step refolding. The central glycopeptide segments were assembled by pseudoproline‐assisted Lansbury aspartylation and subsequent enzymatic elongation of complex N‐glycans. Nine IL‐6 glycoforms were synthesized, seven of which were evaluated for in vivo plasma clearance in rats and compared to non‐glycosylated recombinant IL‐6 from E. coli. Each IL‐6 glycoform was tested in three animals and reproducibly showed individual serum clearances depending on the structure of the N‐glycan. The clearance rates were atypical, since the 2,6‐sialylated glycoforms of IL‐6 cleared faster than the corresponding asialo IL‐6 with terminal galactoses. Compared to non‐glycosylated IL‐6 the plasma clearance of IL‐6 glycoforms was delayed in the presence of larger and multibranched N‐glycans in most cases
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Affiliation(s)
- Andreas Reif
- Bioorganic Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Kevin Lam
- Bioorganic Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Sascha Weidler
- Bioorganic Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Marie Lott
- Bioorganic Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Irene Boos
- Bioorganic Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Juliane Lokau
- Department of Pathology, Medical Faculty, Otto von Guericke University Magdeburg, 39120, Magdeburg, Germany
| | | | - Manuel Mönnich
- Bioorganic Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Lukas Perkams
- Bioorganic Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Marina Schmälzlein
- Bioorganic Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Christopher Graf
- Bioorganic Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Jan-Patrick Fischer
- Bioorganic Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Carolin Lechner
- Bioorganic Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Kerstin Hallstein
- Protein Engineering & Antibody Technologies, Merck Healthcare KGaA, Frankfurter Str. 250, 64293, Darmstadt, Germany
| | - Stefan Becker
- Protein Engineering & Antibody Technologies, Merck Healthcare KGaA, Frankfurter Str. 250, 64293, Darmstadt, Germany
| | - Michael Weyand
- Department of Biochemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Clemens Steegborn
- Department of Biochemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | | | - Stefan Rose-John
- Department of Biochemistry, Kiel University, 24098, Kiel, Germany
| | - Christoph Garbers
- Department of Pathology, Medical Faculty, Otto von Guericke University Magdeburg, 39120, Magdeburg, Germany
| | - Carlo Unverzagt
- Bioorganic Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
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13
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Shirakawa A, Manabe Y, Fukase K. Recent Advances in the Chemical Biology of N-Glycans. Molecules 2021; 26:molecules26041040. [PMID: 33669465 PMCID: PMC7920464 DOI: 10.3390/molecules26041040] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/08/2021] [Accepted: 02/14/2021] [Indexed: 12/19/2022] Open
Abstract
Asparagine-linked N-glycans on proteins have diverse structures, and their functions vary according to their structures. In recent years, it has become possible to obtain high quantities of N-glycans via isolation and chemical/enzymatic/chemoenzymatic synthesis. This has allowed for progress in the elucidation of N-glycan functions at the molecular level. Interaction analyses with lectins by glycan arrays or nuclear magnetic resonance (NMR) using various N-glycans have revealed the molecular basis for the recognition of complex structures of N-glycans. Preparation of proteins modified with homogeneous N-glycans revealed the influence of N-glycan modifications on protein functions. Furthermore, N-glycans have potential applications in drug development. This review discusses recent advances in the chemical biology of N-glycans.
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Affiliation(s)
- Asuka Shirakawa
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan;
| | - Yoshiyuki Manabe
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan;
- Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
- Correspondence: (Y.M.); (K.F.); Tel.: +81-6-6850-5391 (Y.M.); +81-6-6850-5388 (K.F.)
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan;
- Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
- Correspondence: (Y.M.); (K.F.); Tel.: +81-6-6850-5391 (Y.M.); +81-6-6850-5388 (K.F.)
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14
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Zeng C, Sun B, Cao X, Zhu H, Oluwadahunsi OM, Liu D, Zhu H, Zhang J, Zhang Q, Zhang G, Gibbons CA, Liu Y, Zhou J, Wang PG. Chemical Synthesis of Homogeneous Human E-Cadherin N-Linked Glycopeptides: Stereoselective Convergent Glycosylation and Chemoselective Solid-Phase Aspartylation. Org Lett 2020; 22:8349-8353. [PMID: 33045166 DOI: 10.1021/acs.orglett.0c02971] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We report herein an efficient chemical synthesis of homogeneous human E-cadherin N-linked glycopeptides consisting of a heptapeptide sequence adjacent to the Asn-633 N-glycosylation site with representative N-glycan structures, including a conserved trisaccharide, a core-fucosylated tetrasaccharide, and a complex-type biantennary octasaccharide. The key steps are a chemoselective on-resin aspartylation using a pseudoproline-containing peptide and stereoselective glycosylation using glycosyl fluororide as a donor. This synthetic strategy demonstrates potential utility in accessing a wide range of homogeneous N-linked glycopeptides for the examination of their biological function.
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Affiliation(s)
- Chen Zeng
- School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bin Sun
- School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xuefeng Cao
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Hailiang Zhu
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | | | - Ding Liu
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - He Zhu
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Jiabin Zhang
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Qing Zhang
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Gaolan Zhang
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | | | - Yunpeng Liu
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Jun Zhou
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States.,R&D Headquarters, WuXi AppTec, Shanghai 200131, China
| | - Peng George Wang
- School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China.,Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
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15
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Li W, Yu B. Temporary ether protecting groups at the anomeric center in complex carbohydrate synthesis. Adv Carbohydr Chem Biochem 2020; 77:1-69. [PMID: 33004110 DOI: 10.1016/bs.accb.2019.10.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The synthesis of a carbohydrate building block usually starts with introduction of a temporary protecting group at the anomeric center and ends with its selective cleavage for further transformation. Thus, the choice of the anomeric temporary protecting group must be carefully considered because it should retain intact during the whole synthetic manipulation, and it should be chemoselectively removable without affecting other functional groups at a late stage in the synthesis. Etherate groups are the most widely used temporary protecting groups at the anomeric center, generally including allyl ethers, MP (p-methoxyphenyl) ethers, benzyl ethers, PMB (p-methoxybenzyl) eithers, and silyl ethers. This chapter provides a comprehensive review on their formation, cleavage, and applications in the synthesis of complex carbohydrates.
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Affiliation(s)
- Wei Li
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, China.
| | - Biao Yu
- State Key Laboratory of Bio-organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China.
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16
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Weiss M, Ott D, Karagiannis T, Weishaupt M, Niemietz M, Eller S, Lott M, Martínez-Orts M, Canales Á, Razi N, Paulson JC, Unverzagt C. Efficient Chemoenzymatic Synthesis of N-Glycans with a β1,4-Galactosylated Bisecting GlcNAc Motif. Chembiochem 2020; 21:3212-3215. [PMID: 32597008 PMCID: PMC7723014 DOI: 10.1002/cbic.202000268] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/26/2020] [Indexed: 12/29/2022]
Abstract
In human serum immunoglobulin G (IgG), a rare modification of biantennary complex N‐glycans lead to a β1,4‐galactosylated bisecting GlcNAc branch. We found that the bisecting GlcNAc on a biantennary core‐fucosylated N‐glycan was enzymatically galactosylated under stringent reaction conditions. Further optimizations led to an efficient enzymatic approach to this particular modification for biantennary substrates. Notably, tri‐ and tetra‐antennary complex N‐glycans were not converted by bovine galactosyltransferase. An N‐glycan with a galactosylated bisecting GlcNAc was linked to a lanthanide binding tag. The pseudo‐contact shifts (PCS) obtained from the corresponding Dy‐complex were used to calculate the conformational preferences of the rare N‐glycan. Besides two extended conformations only a single folded conformation was found.
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Affiliation(s)
- Michael Weiss
- University of Bayreuth, Bioorganic Chemistry, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Dimitri Ott
- University of Bayreuth, Bioorganic Chemistry, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Theodoros Karagiannis
- University of Bayreuth, Bioorganic Chemistry, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Markus Weishaupt
- University of Bayreuth, Bioorganic Chemistry, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Mathäus Niemietz
- University of Bayreuth, Bioorganic Chemistry, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Steffen Eller
- University of Bayreuth, Bioorganic Chemistry, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Marie Lott
- University of Bayreuth, Bioorganic Chemistry, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Mónica Martínez-Orts
- Dpto. Química Orgánica I, Fac. Ciencias Químicas, Universidad Complutense de Madrid, Avd. Complutense s/n, 28040, Madrid, Spain
| | - Ángeles Canales
- Dpto. Química Orgánica I, Fac. Ciencias Químicas, Universidad Complutense de Madrid, Avd. Complutense s/n, 28040, Madrid, Spain
| | - Nahid Razi
- Depts. of Molecular Medicine, and Immunology and Microbiology, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - James C Paulson
- Depts. of Molecular Medicine, and Immunology and Microbiology, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Carlo Unverzagt
- University of Bayreuth, Bioorganic Chemistry, Universitätsstraße 30, 95447, Bayreuth, Germany
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17
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Abronina PI, Zinin AI, Chizhov AO, Kononov LO. Unusual Outcome of Glycosylation: Hydrogen‐Bond Mediated Control of Stereoselectivity by
N
‐Trifluoroacetyl Group? European J Org Chem 2020. [DOI: 10.1002/ejoc.202000520] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Polina I. Abronina
- N.K. Kochetkov Laboratory of Carbohydrate Chemistry N.D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
| | - Alexander I. Zinin
- N.K. Kochetkov Laboratory of Carbohydrate Chemistry N.D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
| | - Alexander O. Chizhov
- N.K. Kochetkov Laboratory of Carbohydrate Chemistry N.D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
| | - Leonid O. Kononov
- N.K. Kochetkov Laboratory of Carbohydrate Chemistry N.D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
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18
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Le Mai Hoang K, Pardo-Vargas A, Zhu Y, Yu Y, Loria M, Delbianco M, Seeberger PH. Traceless Photolabile Linker Expedites the Chemical Synthesis of Complex Oligosaccharides by Automated Glycan Assembly. J Am Chem Soc 2019; 141:9079-9086. [PMID: 31091089 PMCID: PMC6750752 DOI: 10.1021/jacs.9b03769] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
![]()
Automated glycan
assembly (AGA) aims at accelerating access to
synthetic oligosaccharides to meet the demand for defined glycans
as tools for molecular glycobiology. The linkers used to connect the
growing glycan chain to the solid support play a pivotal role in the
synthesis strategy as they determine all chemical conditions used
during the synthesis and the form of the glycan obtained at the end
of it. Here, we describe a traceless photolabile linker used to prepare
carbohydrates with a free reducing end. Modification of the o-nitrobenzyl scaffold of the linker is key to high yields
and compatibility with the AGA workflow. The assembly of an asymmetrical
biantennary N-glycan from oligosaccharide fragments
prepared by AGA and linear as well as branched β-oligoglucans
is described to illustrate the power of the method. These substrates
will serve as standards and biomarkers to examine the unique specificity
of glycosyl hydrolases.
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Affiliation(s)
- Kim Le Mai Hoang
- Department of Biomolecular Systems , Max-Planck-Institute of Colloids and Interfaces , Am Mühlenberg 1 , 14476 Potsdam , Germany
| | - Alonso Pardo-Vargas
- Department of Biomolecular Systems , Max-Planck-Institute of Colloids and Interfaces , Am Mühlenberg 1 , 14476 Potsdam , Germany.,Institute of Chemistry and Biochemistry , Freie Universität Berlin , Arnimallee 22 , 14195 Berlin , Germany
| | - Yuntao Zhu
- Department of Biomolecular Systems , Max-Planck-Institute of Colloids and Interfaces , Am Mühlenberg 1 , 14476 Potsdam , Germany
| | - Yang Yu
- Department of Biomolecular Systems , Max-Planck-Institute of Colloids and Interfaces , Am Mühlenberg 1 , 14476 Potsdam , Germany.,Institute of Chemistry and Biochemistry , Freie Universität Berlin , Arnimallee 22 , 14195 Berlin , Germany
| | - Mirco Loria
- Institute of Chemistry and Biochemistry , Freie Universität Berlin , Arnimallee 22 , 14195 Berlin , Germany
| | - Martina Delbianco
- Department of Biomolecular Systems , Max-Planck-Institute of Colloids and Interfaces , Am Mühlenberg 1 , 14476 Potsdam , Germany
| | - Peter H Seeberger
- Department of Biomolecular Systems , Max-Planck-Institute of Colloids and Interfaces , Am Mühlenberg 1 , 14476 Potsdam , Germany.,Institute of Chemistry and Biochemistry , Freie Universität Berlin , Arnimallee 22 , 14195 Berlin , Germany
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19
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Mena-Barragán T, de Paz JL, Nieto PM. Unexpected loss of stereoselectivity in glycosylation reactions during the synthesis of chondroitin sulfate oligosaccharides. Beilstein J Org Chem 2019; 15:137-144. [PMID: 30745989 PMCID: PMC6350880 DOI: 10.3762/bjoc.15.14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 01/04/2019] [Indexed: 11/23/2022] Open
Abstract
Here, we present an exploratory study on the fluorous-assisted synthesis of chondroitin sulfate (CS) oligosaccharides. Following this approach, a CS tetrasaccharide was prepared. However, in contrast to our previous results, a significant loss of β-selectivity was observed in [2 + 2] glycosylations involving N-trifluoroacetyl-protected D-galactosamine donors and D-glucuronic acid (GlcA) acceptors. These results, together with those obtained from experiments employing model monosaccharide building blocks, highlight the impact of the glycosyl acceptor structure on the stereoselectivity of glycosylation reactions. Our study provides useful data about the substitution pattern of GlcA units for the efficient synthesis of CS oligomers.
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Affiliation(s)
- Teresa Mena-Barragán
- Glycosystems Laboratory, Instituto de Investigaciones Químicas (IIQ), cicCartuja, CSIC and Universidad de Sevilla, Americo Vespucio, 49, 41092 Sevilla, Spain
| | - José L de Paz
- Glycosystems Laboratory, Instituto de Investigaciones Químicas (IIQ), cicCartuja, CSIC and Universidad de Sevilla, Americo Vespucio, 49, 41092 Sevilla, Spain
| | - Pedro M Nieto
- Glycosystems Laboratory, Instituto de Investigaciones Químicas (IIQ), cicCartuja, CSIC and Universidad de Sevilla, Americo Vespucio, 49, 41092 Sevilla, Spain
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20
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Lin S, Lowary TL. Synthesis of the Highly Branched Hexasaccharide Core of Chlorella Virus N-Linked Glycans. Chemistry 2018; 24:16992-16996. [PMID: 30280442 DOI: 10.1002/chem.201804795] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Indexed: 01/09/2023]
Abstract
Chlorella viruses produce N-linked glycoproteins with carbohydrate moieties that differ in structure from all other N-linked glycans. In addition, unlike most viruses, these organisms do not hijack the biosynthetic machinery of the host to make glycocoproteins; instead, they produce their own carbohydrate-processing enzymes. A better understanding of the function and assembly of these fascinating and structurally-unprecedented glycans requires access to probe molecules. This work describes the first synthesis of a chlorella virus N-linked glycan, a highly branched hexasaccharide that contains the pentasaccharide present in all of the >15 structures reported to date. The target molecule includes a glucosyl-asparagine linkage and a "hyperbranched" fucose residue in which all of the hydroxyl groups are glycosylated. Both convergent and linear approaches were investigated with the latter being successful in providing the target in 16 steps and 13 % overall yield.
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Affiliation(s)
- Sicheng Lin
- Alberta Glycomics Centre and Department of Chemistry, The University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Todd L Lowary
- Alberta Glycomics Centre and Department of Chemistry, The University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
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21
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Luber T, Niemietz M, Karagiannis T, Mönnich M, Ott D, Perkams L, Walcher J, Berger L, Pischl M, Weishaupt M, Eller S, Hoffman J, Unverzagt C. A Single Route to Mammalian N-Glycans Substituted with Core Fucose and Bisecting GlcNAc. Angew Chem Int Ed Engl 2018; 57:14543-14549. [PMID: 30144245 DOI: 10.1002/anie.201807742] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Indexed: 12/15/2022]
Abstract
The occurrence of α1,6-linked core fucose on the N-glycans of mammalian glycoproteins is involved in tumor progression and reduces the bioactivity of antibodies in antibody-dependent cell-mediated cytotoxicity (ADCC). Since core-fucosylated N-glycans are difficult to isolate from natural sources, only chemical or enzymatic synthesis can provide the desired compounds for biological studies. A general drawback of chemical α-fucosylation is that the chemical assembly of α1,6-linked fucosides is not stereospecific. A robust and general method for the α-selective fucosylation of acceptors with primary hydroxy groups in α/β ratios exceeding 99:1 was developed. The high selectivities result from the interplay of an optimized protecting group pattern of the fucosyl donors in combination with the activation principle and the reaction conditions. Selective deprotection yielded versatile azides of all mammalian complex-type core-fucosylated N-glycans with 2-4 antennae and optional bisecting GlcNAc.
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Affiliation(s)
- Thomas Luber
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | - Mathäus Niemietz
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | | | - Manuel Mönnich
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | - Dimitri Ott
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | - Lukas Perkams
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | - Janika Walcher
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | - Lukas Berger
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | - Matthias Pischl
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | - Markus Weishaupt
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | - Steffen Eller
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | - Joanna Hoffman
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | - Carlo Unverzagt
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
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22
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Luber T, Niemietz M, Karagiannis T, Mönnich M, Ott D, Perkams L, Walcher J, Berger L, Pischl M, Weishaupt M, Eller S, Hoffman J, Unverzagt C. A Single Route to Mammalian N-Glycans Substituted with Core Fucose and Bisecting GlcNAc. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807742] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Thomas Luber
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | - Mathäus Niemietz
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | | | - Manuel Mönnich
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | - Dimitri Ott
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | - Lukas Perkams
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | - Janika Walcher
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | - Lukas Berger
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | - Matthias Pischl
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | - Markus Weishaupt
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | - Steffen Eller
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | - Joanna Hoffman
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | - Carlo Unverzagt
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
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23
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Hammura K, Ishikawa A, H. V. RK, Miyoshi R, Yokoi Y, Tanaka M, Hinou H, Nishimura SI. Synthetic Glycopeptides Allow for the Quantitation of Scarce Nonfucosylated IgG Fc N-Glycans of Therapeutic Antibody. ACS Med Chem Lett 2018; 9:889-894. [PMID: 30258536 DOI: 10.1021/acsmedchemlett.8b00127] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 08/10/2018] [Indexed: 01/01/2023] Open
Abstract
Glycans attached to the IgG Fc domain affect strongly biological activities such as antibody-dependent cellular cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC) of therapeutic antibodies. However, molecular mechanism in the glycoform-dependent functional modulation of the IgGs remains elusive. The present study communicates that selected reaction monitoring (SRM)-based assay of tryptic IgG Fc glycopeptides is a promising approach for the characterization of antibodies when combined with structure-defined synthetic Fc peptides having a focused N-glycoform as a calibration standard. We describe a novel synthetic approach to the human IgG1 Fc peptide having a bisected decasaccharide and its nonbisected counterpart compound, the signatures of antibodies involving Fc domain with rare N-glycans expected to show much higher ADCC/CDC than abundant IgG N-glycans, and their application to the SRM-based quantitative glycoproteomics. Use of a key intermediate, phenyl (2-O-benzyl-4,6-O-benzylidine-β-d-mannopyranosyl)-(1 → 4)-3,6-di-O-benzyl-2-azido-2-deoxy-1-thio-β-d-glucopyranoside, derived from locust bean gum galactomannan, facilitated greatly the synthesis of a bisected nonasaccharide as a stable precursor of oxazoline derivative needed for the enzymatic trans-glycosylation with Fc nonapeptide carrying a GlcNAc at Asn297 residue, while the coupling reaction catalyzed by mutant endo-M-N175Q proceeded very slowly. Strikingly, SRM assay using the synthetic Fc glycopeptides as calibration standards uncovered the occurrence of the targeted IgG1 Fc fragment carrying a nonfucosylated and bisected (315 fmol, 0.20%) and its nonbisected counterpart (1154 fmol, 0.73%) in the tryptic digests from 158 pmol of anticancer antibody Herceptin (trastuzumab). The results suggest that aberrantly glycosylated IgG Fc variants may contribute to the total biological activities of the therapeutic antibodies.
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Affiliation(s)
- Kazuki Hammura
- Division of Drug Discovery Research, Faculty of Advanced Life Science and Graduate School of Life Science, Hokkaido University, N21, W11, Kita-ku, Sapporo 001-0021, Japan
| | - Akari Ishikawa
- Division of Drug Discovery Research, Faculty of Advanced Life Science and Graduate School of Life Science, Hokkaido University, N21, W11, Kita-ku, Sapporo 001-0021, Japan
| | - Ravi Kumar H. V.
- Division of Drug Discovery Research, Faculty of Advanced Life Science and Graduate School of Life Science, Hokkaido University, N21, W11, Kita-ku, Sapporo 001-0021, Japan
| | - Risho Miyoshi
- Medicinal Chemistry Pharmaceuticals, Co., Ltd.,
N9, W15, Chuo-ku, Sapporo 060-0009, Japan
| | - Yasuhiro Yokoi
- Division of Drug Discovery Research, Faculty of Advanced Life Science and Graduate School of Life Science, Hokkaido University, N21, W11, Kita-ku, Sapporo 001-0021, Japan
| | - Masakazu Tanaka
- Medicinal Chemistry Pharmaceuticals, Co., Ltd.,
N9, W15, Chuo-ku, Sapporo 060-0009, Japan
| | - Hiroshi Hinou
- Division of Drug Discovery Research, Faculty of Advanced Life Science and Graduate School of Life Science, Hokkaido University, N21, W11, Kita-ku, Sapporo 001-0021, Japan
- Medicinal Chemistry Pharmaceuticals, Co., Ltd.,
N9, W15, Chuo-ku, Sapporo 060-0009, Japan
| | - Shin-Ichiro Nishimura
- Division of Drug Discovery Research, Faculty of Advanced Life Science and Graduate School of Life Science, Hokkaido University, N21, W11, Kita-ku, Sapporo 001-0021, Japan
- Medicinal Chemistry Pharmaceuticals, Co., Ltd.,
N9, W15, Chuo-ku, Sapporo 060-0009, Japan
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Yang W, Ramadan S, Orwenyo J, Kakeshpour T, Diaz T, Eken Y, Sanda M, Jackson JE, Wilson AK, Huang X. Chemoenzymatic synthesis of glycopeptides bearing rare N-glycan sequences with or without bisecting GlcNAc. Chem Sci 2018; 9:8194-8206. [PMID: 30542567 PMCID: PMC6240809 DOI: 10.1039/c8sc02457j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 08/31/2018] [Indexed: 01/24/2023] Open
Abstract
A glycopeptide bearing a bisecting glucosamine, a rare N-glycan branch, and two LewisX trisaccharides was synthesized for the first time.
N-Linked glycopeptides have highly diverse structures in nature. Herein, we describe the first synthesis of rare multi-antennary N-glycan bearing glycan chains on 6-OH of both α1,6- and α1,3-linked mannose arms. To expedite divergent generation of N-glycan structures, four orthogonal protective groups were installed at the branching points on the core tetrasaccharide, which could be removed individually without affecting one another. In addition, the synthetic route is flexible, allowing a bisecting glucosamine moiety to be introduced at a late stage of the synthesis, further expanding the diversity of sequences that could be achieved. The bisecting glucosamine unit significantly reduced the glycosylation yields of adjacent mannoses, which was attributed to steric hindrance imposed by the glucosamine based on molecular modelling analysis. The N-glycans were then transformed to oxazoline donors and ligated with a glycopeptide acceptor from haptoglobin promoted by the wild type Arthrobacter endo-β-N-acetylglucosaminidase (Endo-A). Endo-A exhibited interesting substrate preferences depending on donor sizes, which was rationalized through molecular dynamics studies. This is the first time that a glycopeptide bearing a bisecting N-acetyl glucosamine (GlcNAc), the rare N-glycan branch, and two LewisX trisaccharide antennae was synthesized, enabling access to this class of complex glycopeptide structures.
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Affiliation(s)
- Weizhun Yang
- Department of Chemistry , Michigan State University , 578 South Shaw Lane , East Lansing , MI 48824 , USA . ; ;
| | - Sherif Ramadan
- Department of Chemistry , Michigan State University , 578 South Shaw Lane , East Lansing , MI 48824 , USA . ; ; .,Chemistry Department , Faculty of Science , Benha University , Benha , Qaliobiya 13518 , Egypt
| | - Jared Orwenyo
- Department of Chemistry and Biochemistry , University of Maryland , College Park , MD 20742 , USA
| | - Tayeb Kakeshpour
- Department of Chemistry , Michigan State University , 578 South Shaw Lane , East Lansing , MI 48824 , USA . ; ;
| | - Thomas Diaz
- Department of Chemistry , Michigan State University , 578 South Shaw Lane , East Lansing , MI 48824 , USA . ; ;
| | - Yigitcan Eken
- Department of Chemistry , Michigan State University , 578 South Shaw Lane , East Lansing , MI 48824 , USA . ; ;
| | - Miloslav Sanda
- Department of Oncology , Georgetown University , Washington DC 20057 , USA
| | - James E Jackson
- Department of Chemistry , Michigan State University , 578 South Shaw Lane , East Lansing , MI 48824 , USA . ; ;
| | - Angela K Wilson
- Department of Chemistry , Michigan State University , 578 South Shaw Lane , East Lansing , MI 48824 , USA . ; ;
| | - Xuefei Huang
- Department of Chemistry , Michigan State University , 578 South Shaw Lane , East Lansing , MI 48824 , USA . ; ; .,Department of Biomedical Engineering , Michigan State University , East Lansing , MI 48824 , USA.,Institute for Quantitative Health Science and Engineering , Michigan State University , East Lansing , MI 48824 , USA
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25
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26
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Carlo Unverzagt. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/anie.201802018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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27
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Carlo Unverzagt. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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28
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Yogesh KV, Kamiyama T, Ohyama C, Yoneyama T, Nouso K, Kimura S, Hinou H, Nishimura SI. Synthetic glycopeptides as a designated standard in focused glycoproteomics to discover serum cancer biomarkers. MEDCHEMCOMM 2018; 9:1351-1358. [PMID: 30151090 DOI: 10.1039/c8md00162f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Accepted: 06/21/2018] [Indexed: 12/25/2022]
Abstract
Previous studies on the large-scale glycomics of more than 3500 human serum samples revealed that the serum glycoproteins of cancer patients often have more dominant and specific glycoforms, namely, branched tri- and tetra-antennary N-glycans, most cancer patient groups than normal control groups. We herein established an efficient synthetic protocol of glycopeptides having highly complicated N-glycan structures that may be generated by direct tryptic digestion of serum glycoproteins. A preliminary selected reaction monitoring (SRM) assay using the synthetic model glycopeptide 1, 40Ser-Val-Gln-Glu-Ile-Gln-Ala-Thr-Phe-Phe-Tyr-Phe-Thr-Pro-Asn-Lys-Thr-Glu-Asp-Thr-Ile-Phe-Leu-Arg63 having an asialo tri-antennary N-glycan at the Asn54 residue as a designated calibration standard allowed for the rapid and absolute quantitation of the tryptic fragment derived from the serum α1-acid glycoprotein carrying a focused N-glycoform of cancer patients and healthy controls in a range between 200 and 1600 fmole μL-1 without any enrichment process for the target glycoprotein.
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Affiliation(s)
- K V Yogesh
- Division of Drug Discovery Research , Faculty of Advanced Life Science and Graduate School of Life Science , Hokkaido University , N21, W11, Kita-ku , Sapporo 001-0021 , Japan .
| | - Toshiya Kamiyama
- Department of Gastroenterological Surgery I , Graduate School of Medicine , Hokkaido University , N15, W7, Kita-ku , Sapporo 060-8638 , Japan
| | - Chikara Ohyama
- Department of Urology , Graduate School of Medicine , Hirosaki University , Hirosaki 036-8562 , Japan
| | - Tohru Yoneyama
- Department of Urology , Graduate School of Medicine , Hirosaki University , Hirosaki 036-8562 , Japan
| | - Kazuhiro Nouso
- Department of Gastroenterology and Hepatology , Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences , Okayama University , Okayama 700-8530 , Japan
| | - Satoshi Kimura
- Department of Laboratory Medicine and Central Clinical Laboratory , Showa University , Northern Yokohama Hospital , Yokohama 224-8503 , Japan
| | - Hiroshi Hinou
- Division of Drug Discovery Research , Faculty of Advanced Life Science and Graduate School of Life Science , Hokkaido University , N21, W11, Kita-ku , Sapporo 001-0021 , Japan . .,Medicinal Chemistry Pharmaceuticals Co. Ltd. , Sapporo 060-0009 , Japan
| | - Shin-Ichiro Nishimura
- Division of Drug Discovery Research , Faculty of Advanced Life Science and Graduate School of Life Science , Hokkaido University , N21, W11, Kita-ku , Sapporo 001-0021 , Japan . .,Medicinal Chemistry Pharmaceuticals Co. Ltd. , Sapporo 060-0009 , Japan
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29
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Manabe Y, Shomura H, Minamoto N, Nagasaki M, Takakura Y, Tanaka K, Silipo A, Molinaro A, Fukase K. Convergent Synthesis of a Bisecting N-Acetylglucosamine (GlcNAc)-Containing N-Glycan. Chem Asian J 2018; 13:1544-1551. [PMID: 29665315 DOI: 10.1002/asia.201800367] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 04/13/2018] [Indexed: 01/26/2023]
Abstract
The chemical synthesis of a bisecting N-acetylglucosamine (GlcNAc)-containing N-glycan was achieved by a convergent synthetic route through [4+2] and [6+2] glycosylations. This synthetic route reduced the number of reaction steps, although the key glycosylations were challenging in terms of yields and selectivities owing to steric hindrance at the glycosylation site and a lack of neighboring group participation. The yields of these glycosylations were enhanced by stabilizing the oxocarbenium ion intermediate through ether coordination. Glycosyl donor protecting groups were explored in an effort to realize perfect α selectivity by manipulating remote participation. The simultaneous glycosylations of a tetrasaccharide with two disaccharides was investigated to efficiently construct a bisecting GlcNAc-containing N-glycan.
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Affiliation(s)
- Yoshiyuki Manabe
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, Machikaneyama 1-1, Toyonaka, Osaka, 560-0043, Japan
| | - Hiroki Shomura
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Naoya Minamoto
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Masahiro Nagasaki
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Yohei Takakura
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Katsunori Tanaka
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Biofunctional Synthetic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Alba Silipo
- Department of Chemical Science, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Antonio Molinaro
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Department of Chemical Science, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, Machikaneyama 1-1, Toyonaka, Osaka, 560-0043, Japan
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30
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Canales A, Boos I, Perkams L, Karst L, Luber T, Karagiannis T, Domínguez G, Cañada FJ, Pérez-Castells J, Häussinger D, Unverzagt C, Jiménez-Barbero J. Breaking the Limits in Analyzing Carbohydrate Recognition by NMR Spectroscopy: Resolving Branch-Selective Interaction of a Tetra-Antennary N-Glycan with Lectins. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709130] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Angeles Canales
- Dep. Química Orgánica I, Fac. C. C. Químicas; Univ. Complutense de Madrid; Avd. Complutense s/n 28040 Madrid Spain
| | - Irene Boos
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | - Lukas Perkams
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | - Lukas Karst
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | - Thomas Luber
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | | | - Gemma Domínguez
- Dep. Química, Fac. Farmacia; Univ. CEU-San Pablo; Madrid Spain
| | - F. Javier Cañada
- Dep. Biología Físico Química; CIB-CSIC; C/ Ramiro de Maeztu 9 28040 Madrid Spain
| | | | - Daniel Häussinger
- Department of Chemistry; University of Basel; Spitalstrasse 51 4056 Basel Switzerland
| | - Carlo Unverzagt
- Bioorganische Chemie, Gebäude NW1; Universität Bayreuth; 95440 Bayreuth Germany
| | - Jesus Jiménez-Barbero
- CIC bioGUNE; Bizkaia Science and Technology Park, Building 801A 48160 Derio Spain
- IKERBASQUE , Basque Foundation for Science; 48009 Bilbao Spain
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31
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Canales A, Boos I, Perkams L, Karst L, Luber T, Karagiannis T, Domínguez G, Cañada FJ, Pérez-Castells J, Häussinger D, Unverzagt C, Jiménez-Barbero J. Breaking the Limits in Analyzing Carbohydrate Recognition by NMR Spectroscopy: Resolving Branch-Selective Interaction of a Tetra-Antennary N-Glycan with Lectins. Angew Chem Int Ed Engl 2017; 56:14987-14991. [PMID: 28991403 PMCID: PMC5813150 DOI: 10.1002/anie.201709130] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Indexed: 11/07/2022]
Abstract
The biological recognition of complex-type N-glycans is part of many key physiological and pathological events. Despite their importance, the structural characterization of these events remains unsolved. The inherent flexibility of N-glycans hampers crystallization and the chemical equivalence of individual branches precludes their NMR characterization. By using a chemoenzymatically synthesized tetra-antennary N-glycan conjugated to a lanthanide binding tag, the NMR signals under paramagnetic conditions discriminated all four N-acetyl lactosamine antennae with unprecedented resolution. The NMR data revealed the conformation of the N-glycan and permitted for the first time the direct identification of individual branches involved in the recognition by two N-acetyllactosamine-binding lectins, Datura stramonium seed lectin (DSL) and Ricinus Communis agglutinin (RCA120).
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Affiliation(s)
- Angeles Canales
- Dep. Química Orgánica I, Fac. C. C. Químicas, Univ. Complutense de Madrid, Avd. Complutense s/n, 28040, Madrid, Spain
| | - Irene Boos
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | - Lukas Perkams
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | - Lukas Karst
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | - Thomas Luber
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | | | - Gemma Domínguez
- Dep. Química, Fac. Farmacia, Univ. CEU-San Pablo, Madrid, Spain
| | - F Javier Cañada
- Dep. Biología Físico Química, CIB-CSIC, C/ Ramiro de Maeztu 9, 28040, Madrid, Spain
| | | | - Daniel Häussinger
- Department of Chemistry, University of Basel, Spitalstrasse 51, 4056, Basel, Switzerland
| | - Carlo Unverzagt
- Bioorganische Chemie, Gebäude NW1, Universität Bayreuth, 95440, Bayreuth, Germany
| | - Jesus Jiménez-Barbero
- CIC bioGUNE, Bizkaia Science and Technology Park, Building 801A, 48160, Derio, Spain.,IKERBASQUE, Basque Foundation for Science, 48009, Bilbao, Spain
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32
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Graf CGF, Schulz C, Schmälzlein M, Heinlein C, Mönnich M, Perkams L, Püttner M, Boos I, Hessefort M, Lombana Sanchez JN, Weyand M, Steegborn C, Breiden B, Ross K, Schwarzmann G, Sandhoff K, Unverzagt C. Synthetic Glycoforms Reveal Carbohydrate-Dependent Bioactivity of Human Saposin D. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701362] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | - Christian Schulz
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | - Marina Schmälzlein
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | - Christian Heinlein
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | - Manuel Mönnich
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | - Lukas Perkams
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | - Markus Püttner
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | - Irene Boos
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | - Markus Hessefort
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | | | - Michael Weyand
- Department of Biochemistry; Universität Bayreuth; Germany
| | | | | | | | | | | | - Carlo Unverzagt
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
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33
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Graf CGF, Schulz C, Schmälzlein M, Heinlein C, Mönnich M, Perkams L, Püttner M, Boos I, Hessefort M, Lombana Sanchez JN, Weyand M, Steegborn C, Breiden B, Ross K, Schwarzmann G, Sandhoff K, Unverzagt C. Synthetic Glycoforms Reveal Carbohydrate-Dependent Bioactivity of Human Saposin D. Angew Chem Int Ed Engl 2017; 56:5252-5257. [DOI: 10.1002/anie.201701362] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Indexed: 12/15/2022]
Affiliation(s)
| | - Christian Schulz
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | - Marina Schmälzlein
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | - Christian Heinlein
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | - Manuel Mönnich
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | - Lukas Perkams
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | - Markus Püttner
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | - Irene Boos
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | - Markus Hessefort
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
| | | | - Michael Weyand
- Department of Biochemistry; Universität Bayreuth; Germany
| | | | | | | | | | | | - Carlo Unverzagt
- Bioorg. Chemie, Gebäude NWI; Universität Bayreuth; 95440 Bayreuth Germany
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34
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Gagarinov IA, Li T, Toraño JS, Caval T, Srivastava AD, Kruijtzer JAW, Heck AJR, Boons GJ. Chemoenzymatic Approach for the Preparation of Asymmetric Bi-, Tri-, and Tetra-Antennary N-Glycans from a Common Precursor. J Am Chem Soc 2017; 139:1011-1018. [PMID: 28002670 PMCID: PMC5461401 DOI: 10.1021/jacs.6b12080] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Progress in glycoscience is hampered by a lack of well-defined complex oligosaccharide standards that are needed to fabricate the next generation of microarrays, to develop analytical protocols to determine exact structures of isolated glycans, and to elucidate pathways of glycan biosynthesis. We describe here a chemoenzymatic methodology that makes it possible, for the first time, to prepare any bi-, tri-, and tetra-antennary asymmetric N-glycan from a single precursor. It is based on the chemical synthesis of a tetra-antennary glycan that has N-acetylglucosamine (GlcNAc), N-acetyllactosamine (LacNAc), and unnatural Galα(1,4)-GlcNAc and Manβ(1,4)-GlcNAc appendages. Mammalian glycosyltransferases recognize only the terminal LacNAc moiety as a substrate, and thus this structure can be uniquely extended. Next, the β-GlcNAc terminating antenna can be converted into LacNAc by galactosylation and can then be enzymatically modified into a complex structure. The unnatural α-Gal and β-Man terminating antennae can sequentially be decaged by an appropriate glycosidase to liberate a terminal β-GlcNAc moiety, which can be converted into LacNAc and then elaborated by a panel of glycosyltransferases. Asymmetric bi- and triantennary glycans could be obtained by removal of a terminal β-GlcNAc moiety by treatment with β-N-acetylglucosaminidase and selective extension of the other arms. The power of the methodology is demonstrated by the preparation of an asymmetric tetra-antennary N-glycan found in human breast carcinoma tissue, which represents the most complex N-glycan ever synthesized. Multistage mass spectrometry of the two isomeric triantennary glycans uncovered unique fragment ions that will facilitate identification of exact structures of glycans in biological samples.
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Affiliation(s)
- Ivan A. Gagarinov
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, and Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Tiehai Li
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
| | - Javier Sastre Toraño
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, and Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Tomislav Caval
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
- Netherlands Proteomics Centre, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Apoorva D. Srivastava
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, and Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - John A. W. Kruijtzer
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, and Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Albert J. R. Heck
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
- Netherlands Proteomics Centre, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Geert-Jan Boons
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, and Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
- Department of Chemistry, University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
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Nagasaki M, Manabe Y, Minamoto N, Tanaka K, Silipo A, Molinaro A, Fukase K. Chemical Synthesis of a Complex-Type N-Glycan Containing a Core Fucose. J Org Chem 2016; 81:10600-10616. [PMID: 27775350 DOI: 10.1021/acs.joc.6b02106] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A chemical synthesis of a core fucose containing N-glycan was achieved. Asparagine was introduced at an early stage of the synthesis, and the sugar chain was convergently elongated. As for the fragment synthesis, we reinvestigated α-sialylation, β-mannosylation, and N-glycosylation to reveal that precise temperature control was essential for these glycosylations. Intermolecular hydrogen bonds involving acetamide groups were found to reduce the reactivity in glycosylations: the protection of NHAc as NAc2 dramatically improved the reactivity. The dodecasaccharide-asparagine framework was constructed via the (4 + 4) glycosylation and the (4 + 8) glycosylation using the tetrasaccharide donor and the tetrasaccharide-asparagine acceptor. An ether-type solvent enhanced the yields of these key glycosylations between large substrates. After the whole deprotection of the dodecasaccharide, the target N-glycan was obtained.
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Affiliation(s)
- Masahiro Nagasaki
- Department of Chemistry, Graduate School of Science, Osaka University , Machikaneyama 1-1, Toyonaka, Osaka 560-0043, Japan
| | - Yoshiyuki Manabe
- Department of Chemistry, Graduate School of Science, Osaka University , Machikaneyama 1-1, Toyonaka, Osaka 560-0043, Japan
| | - Naoya Minamoto
- Department of Chemistry, Graduate School of Science, Osaka University , Machikaneyama 1-1, Toyonaka, Osaka 560-0043, Japan
| | - Katsunori Tanaka
- Department of Chemistry, Graduate School of Science, Osaka University , Machikaneyama 1-1, Toyonaka, Osaka 560-0043, Japan.,Biofunctional Synthetic Chemistry Laboratory, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Alba Silipo
- Department of Chemical Science, University of Naples Federico II , Via Cinthia 4, 80126 Napoli, Italy
| | - Antonio Molinaro
- Department of Chemistry, Graduate School of Science, Osaka University , Machikaneyama 1-1, Toyonaka, Osaka 560-0043, Japan.,Department of Chemical Science, University of Naples Federico II , Via Cinthia 4, 80126 Napoli, Italy
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University , Machikaneyama 1-1, Toyonaka, Osaka 560-0043, Japan
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