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Ishiwata A, Tanaka K, Ito Y, Cai H, Ding F. Recent Progress in 1,2- cis glycosylation for Glucan Synthesis. Molecules 2023; 28:5644. [PMID: 37570614 PMCID: PMC10420028 DOI: 10.3390/molecules28155644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/30/2023] [Accepted: 07/02/2023] [Indexed: 08/13/2023] Open
Abstract
Controlling the stereoselectivity of 1,2-cis glycosylation is one of the most challenging tasks in the chemical synthesis of glycans. There are various 1,2-cis glycosides in nature, such as α-glucoside and β-mannoside in glycoproteins, glycolipids, proteoglycans, microbial polysaccharides, and bioactive natural products. In the structure of polysaccharides such as α-glucan, 1,2-cis α-glucosides were found to be the major linkage between the glucopyranosides. Various regioisomeric linkages, 1→3, 1→4, and 1→6 for the backbone structure, and 1→2/3/4/6 for branching in the polysaccharide as well as in the oligosaccharides were identified. To achieve highly stereoselective 1,2-cis glycosylation, including α-glucosylation, a number of strategies using inter- and intra-molecular methodologies have been explored. Recently, Zn salt-mediated cis glycosylation has been developed and applied to the synthesis of various 1,2-cis linkages, such as α-glucoside and β-mannoside, via the 1,2-cis glycosylation pathway and β-galactoside 1,4/6-cis induction. Furthermore, the synthesis of various structures of α-glucans has been achieved using the recent progressive stereoselective 1,2-cis glycosylation reactions. In this review, recent advances in stereoselective 1,2-cis glycosylation, particularly focused on α-glucosylation, and their applications in the construction of linear and branched α-glucans are summarized.
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Affiliation(s)
| | - Katsunori Tanaka
- RIKEN, Cluster for Pioneering Research, Saitama 351-0198, Japan
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8552, Japan
| | - Yukishige Ito
- RIKEN, Cluster for Pioneering Research, Saitama 351-0198, Japan
- Graduate School of Science, Osaka University, Osaka 560-0043, Japan
| | - Hui Cai
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China
| | - Feiqing Ding
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China
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Convergent synthesis of oligomannose-type glycans via step-economical construction of branch structures. Carbohydr Res 2023; 525:108764. [PMID: 36812846 DOI: 10.1016/j.carres.2023.108764] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/27/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023]
Abstract
Oligomannose-type glycans on glycoproteins are important signaling molecules in the glycoprotein quality control system in the endoplasmic reticulum. Recently, free oligomannose-type glycans generated by the hydrolysis of glycoproteins or dolichol pyrophosphate-linked oligosaccharides were recognized as important signals for immunogenicity. Hence, there is a high demand for pure oligomannose-type glycans for biochemical experiments; however, the chemical synthesis of glycans to achieve high-concentration products is laborious. In this study, we demonstrate a simple and efficient synthetic strategy for oligomannose-type glycans. Sequential regioselective α-mannosylation at the C-3 and C-6 positions of 2,3,4,6-unprotected galactose residues in galactosylchitobiose derivatives was demonstrated. Subsequently, the inversion of the configuration of the two hydroxy groups at the C-2 and C-4 positions of the galactose moiety was successfully carried out. This synthetic route reduces the number of the protection-deprotection reactions and is suitable for constructing different branching patterns of oligomannose-type glycans, such as M9, M5A, and M5B.
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2017-2018. MASS SPECTROMETRY REVIEWS 2023; 42:227-431. [PMID: 34719822 DOI: 10.1002/mas.21721] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 07/26/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
This review is the tenth update of the original article published in 1999 on the application of matrix-assisted laser desorption/ionization mass spectrometry (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2018. Also included are papers that describe methods appropriate to glycan and glycoprotein analysis by MALDI, such as sample preparation techniques, even though the ionization method is not MALDI. Topics covered in the first part of the review include general aspects such as theory of the MALDI process, new methods, matrices, derivatization, MALDI imaging, fragmentation and the use of arrays. The second part of the review is devoted to applications to various structural types such as oligo- and poly-saccharides, glycoproteins, glycolipids, glycosides, and biopharmaceuticals. Most of the applications are presented in tabular form. The third part of the review covers medical and industrial applications of the technique, studies of enzyme reactions, and applications to chemical synthesis. The reported work shows increasing use of combined new techniques such as ion mobility and highlights the impact that MALDI imaging is having across a range of diciplines. MALDI is still an ideal technique for carbohydrate analysis and advancements in the technique and the range of applications continue steady progress.
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Affiliation(s)
- David J Harvey
- Nuffield Department of Medicine, Target Discovery Institute, University of Oxford, Oxford, UK
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Zhao X, Huang Y, Zhou S, Ao J, Cai H, Tanaka K, Ito Y, Ishiwata A, Ding F. Recent Chemical and Chemoenzymatic Strategies to Complex-Type N-Glycans. Front Chem 2022; 10:880128. [PMID: 35720985 PMCID: PMC9204336 DOI: 10.3389/fchem.2022.880128] [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: 02/21/2022] [Accepted: 04/12/2022] [Indexed: 12/01/2022] Open
Abstract
Glycosylation is one of the major forms of protein post-translational modification. N-glycans attached to proteins by covalent bonds play an indispensable role in intercellular interaction and immune function. In human bodies, most of the cell surface glycoproteins and secreted glycopeptides are modified with complex-type N-glycans. Thus, for analytical or medicinal purposes, efficient and universal methods to provide homogeneous complex-type N-glycans have been an urgent need. Despite the extremely complicated structures, tremendous progress in the synthesis of N-glycans has been achieved. On one hand, chemical strategies are shown to be effective to prepare core oligosaccharides of N-glycans by focusing on stereoselective glycosylations such as β-mannosylation and α-sialylation, as well as the methodology of the N-glycan assembly. On the other hand, chemoenzymatic strategies have also become increasingly powerful in recent years. This review attempts to highlight the very recent advancements in chemical and chemoenzymatic strategies for eukaryotic complex-type N-glycans.
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Affiliation(s)
- Xiaoya Zhao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Yan Huang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Siai Zhou
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Jiaming Ao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Hui Cai
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
- *Correspondence: Hui Cai, ; Akihiro Ishiwata, ; Feiqing Ding,
| | - Katsunori Tanaka
- RIKEN Cluster for Pioneering Research, Saitama, Japan
- School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo, Japan
- Alexander Butlerov Institute of Chemistry, Kazan Federal University, Kazan, Russian Federation
| | - Yukishige Ito
- RIKEN Cluster for Pioneering Research, Saitama, Japan
- Graduate School of Science, Osaka University, Osaka, Japan
| | - Akihiro Ishiwata
- RIKEN Cluster for Pioneering Research, Saitama, Japan
- *Correspondence: Hui Cai, ; Akihiro Ishiwata, ; Feiqing Ding,
| | - Feiqing Ding
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
- *Correspondence: Hui Cai, ; Akihiro Ishiwata, ; Feiqing Ding,
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Ishii N. Evaluation of Endo-β- N-Acetylglucosaminidase Activity Based on a FRET-Quenching System. TRENDS GLYCOSCI GLYC 2020. [DOI: 10.4052/tigg.1804.4j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Nozomi Ishii
- The Biomolecular Interaction Centre (BIC), School of Physical and Chemical Sciences, University of Canterbury
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Ishii N. Evaluation of Endo-β-<i>N</i>-Acetylglucosaminidase Activity Based on a FRET-Quenching System. TRENDS GLYCOSCI GLYC 2020. [DOI: 10.4052/tigg.1804.4e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Nozomi Ishii
- The Biomolecular Interaction Centre (BIC), School of Physical and Chemical Sciences, University of Canterbury
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Paramasivam S, Fairbanks AJ. Rapid synthesis of N-glycan oxazolines from locust bean gum via the Lafont rearrangement. Carbohydr Res 2019; 477:11-19. [DOI: 10.1016/j.carres.2019.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 03/20/2019] [Indexed: 12/16/2022]
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Abstract
Glycosylation is one of the most prevalent posttranslational modifications that profoundly affects the structure and functions of proteins in a wide variety of biological recognition events. However, the structural complexity and heterogeneity of glycoproteins, usually resulting from the variations of glycan components and/or the sites of glycosylation, often complicates detailed structure-function relationship studies and hampers the therapeutic applications of glycoproteins. To address these challenges, various chemical and biological strategies have been developed for producing glycan-defined homogeneous glycoproteins. This review highlights recent advances in the development of chemoenzymatic methods for synthesizing homogeneous glycoproteins, including the generation of various glycosynthases for synthetic purposes, endoglycosidase-catalyzed glycoprotein synthesis and glycan remodeling, and direct enzymatic glycosylation of polypeptides and proteins. The scope, limitation, and future directions of each method are discussed.
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Affiliation(s)
- Chao Li
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Lai-Xi Wang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
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Ding F, Ishiwata A, Ito Y. Stereodivergent Mannosylation Using 2- O-( ortho-Tosylamido)benzyl Group. Org Lett 2018; 20:4833-4837. [PMID: 30052458 DOI: 10.1021/acs.orglett.8b01979] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report a novel strategy for obtaining both anomers from a single mannosyl donor equipped with a C2- o-TsNHbenzyl ether (2- O-TAB) by switching reaction conditions. In particular, the formation of various β-mannosides was achieved with high selectivity by using a mannosyl phosphite in the presence of ZnI2.
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Affiliation(s)
- Feiqing Ding
- Synthetic Cellular Chemistry Laboratory , RIKEN , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
| | - Akihiro Ishiwata
- Synthetic Cellular Chemistry Laboratory , RIKEN , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
| | - Yukishige Ito
- Synthetic Cellular Chemistry Laboratory , RIKEN , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
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Ishii N, Sunaga C, Sano K, Huang C, Iino K, Matsuzaki Y, Suzuki T, Matsuo I. A New Fluorogenic Probe for the Detection of endo-β-N-Acetylglucosaminidase. Chembiochem 2018; 19:660-663. [PMID: 29323460 DOI: 10.1002/cbic.201700662] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Indexed: 01/31/2023]
Abstract
We developed a fluorescence-quenching-based assay system to determine the hydrolysis activity of endo-β-N-acetylglucosaminidases (ENGases). The pentasaccharide derivative 1 was labeled with an N-methylanthraniloyl group as a reporter dye at the non-reducing end and with a 2,4-dinitrophenyl group as a quencher molecule at the reducing end. This derivative is hydrolyzed by ENGase, resulting in an increase in fluorescence intensity. Thus, the fluorescence signal is directly proportional to the amount of the tetrasaccharide derivative, hence allowing ENGase activity to be evaluated easily and quantitatively. Using this system, we succeeded in measuring the hydrolysis activities of ENGases and thus the inhibitory activities of known inhibitors. We confirmed that this assay system is suitable for high-throughput screening for potential inhibitors of human ENGase that might serve as therapeutic agents for the treatment of N-glycanase 1 (NGLY1) deficiency.
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Affiliation(s)
- Nozomi Ishii
- Department Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma, 376-8515, Japan
| | - Chie Sunaga
- Department Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma, 376-8515, Japan
| | - Kanae Sano
- Department Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma, 376-8515, Japan
| | - Chengcheng Huang
- Glycometabolome Team, Systems Glycobiology Research Group, RIKEN-Max Planck Joint Research Center for Systems Chemical Biology, RIKEN Global Research Cluster, Wako, Saitama, 351-0198, Japan
| | - Kenta Iino
- Glyco Synthetic Lab., Tokyo Chemical Industry Co., Ltd., 6-15-9 Toshima, Kita-ku, Tokyo, 114-0003, Japan
| | - Yuji Matsuzaki
- Glyco Synthetic Lab., Tokyo Chemical Industry Co., Ltd., 6-15-9 Toshima, Kita-ku, Tokyo, 114-0003, Japan
| | - Tadashi Suzuki
- Glycometabolome Team, Systems Glycobiology Research Group, RIKEN-Max Planck Joint Research Center for Systems Chemical Biology, RIKEN Global Research Cluster, Wako, Saitama, 351-0198, Japan
| | - Ichiro Matsuo
- Department Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma, 376-8515, Japan
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