1
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Yadav K, Arya M, Prakash S, Jha BS, Manchanda P, Kumar A, Deswal R. Brassica juncea leaf cuticle contains xylose and mannose (xylomannan) which inhibit ice recrystallization on the leaf surface. PLANTA 2023; 258:44. [PMID: 37460860 DOI: 10.1007/s00425-023-04203-2] [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: 12/02/2022] [Accepted: 07/10/2023] [Indexed: 07/20/2023]
Abstract
MAIN CONCLUSION Conjugated sugars showed antifreeze activity in the cuticle by ice recrystallization inhibition rather than thermal hysteresis, enhancing freezing capacity at the surface of B. juncea leaves. Antifreeze biomolecules play a crucial role in mitigating the physical damage from frost by controlling extracellular ice crystal growth in plants. Antifreeze proteins (AFPs) are reported from the apoplast of different plants. Interestingly, there is no report about antifreeze properties of the cuticle. Here, we report the potential antifreeze activity in the Brassica juncea (BJ) leaf cuticle. Nano LC-MS/MS analysis of a cuticle protein enriched fraction (CPE) predicted over 30 putative AFPs using CryoProtect server and literature survey. Ice crystal morphology (ICM) and ice recrystallization inhibition (IRI) analysis of ABC supernatant showed heat and pronase-resistant, non-protein antifreeze activities as well as hexagonal ice crystals with TH of 0.17 °C and IRI 46%. The ZipTip processed ABC supernatant (without peptides) had no effect on TH activity, confirming a non-protein antifreeze molecule contributing to activity. To understand the origin and to confirm the source of antifreeze activity, cuticular membranes were isolated by pectinase and cellulase hydrolysis. FTIR analysis of the intact cuticle showed xylose, mannose, cellulose, and glucose. Xylanase and cellulase treatments of the ZipTip processed ABC supernatant led to an increase in sugar content and 50% loss in antifreeze activity. UV spectroscopy and NMR analysis supported the finding of FTIR and enzyme hydrolysis suggesting the contribution of xylose and mannose to antifreeze activity. By TLC analysis, conjugated sugars were found in the cuticle. This work has opened up a new research area where the antifreeze capacity needs to be established with regard to complete characterization and mechanism of action of the antifreeze carbohydrates (conjugated sugars) on the leaf surface.
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Affiliation(s)
- Kailash Yadav
- Molecular Plant Physiology and Proteomics Laboratory, Department of Botany, University of Delhi, Delhi, 110007, India
| | - Meenakshi Arya
- Department of Botany, Dyal Singh College, University of Delhi, Delhi, 110003, India
| | - Satya Prakash
- Department of Botany, Acharya Narendra Dev College, University of Delhi, Delhi, 110019, India
| | - Bhavana Sharma Jha
- Department of Botany, Gargi College, University of Delhi, Delhi, 110049, India
| | - Preet Manchanda
- Molecular Plant Physiology and Proteomics Laboratory, Department of Botany, University of Delhi, Delhi, 110007, India
| | - Abhishek Kumar
- Molecular Plant Physiology and Proteomics Laboratory, Department of Botany, University of Delhi, Delhi, 110007, India
| | - Renu Deswal
- Molecular Plant Physiology and Proteomics Laboratory, Department of Botany, University of Delhi, Delhi, 110007, India.
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2
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Boron-mediated aglycon delivery (BMAD) for the stereoselective synthesis of 1,2-cis glycosides. Adv Carbohydr Chem Biochem 2022; 82:79-105. [PMID: 36470650 DOI: 10.1016/bs.accb.2022.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
1,2-cis Glycosides are frequently found in biologically active natural products, pharmaceutical compounds, and highly functional materials. Therefore, elucidating the role of mechanism of their biological activities will help clarify the structure-activity relationships of these diverse compounds and create new lead compounds for pharmaceuticals by modifying their structures. However, unlike 1,2-trans glycosides, the stereoselective synthesis of 1,2-cis glycosides remains difficult due to the nonavailability of neighboring group participation from the 2-O-acyl functionalities of the glycosyl donors. In this context, we recently developed organoboron-catalyzed 1,2-cis-stereoselecitve glycosylations, called boron-mediated aglycon delivery (BMAD) methods. In this review article, we introduce the BMAD methods and several examples of their application to the synthesis of biologically active glycosides.
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3
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Hagino R, Mozaki K, Komura N, Imamura A, Ishida H, Ando H, Tanaka HN. Straightforward Synthesis of the Poly(ADP-ribose) Branched Core Structure. ACS OMEGA 2022; 7:32795-32804. [PMID: 36119971 PMCID: PMC9476175 DOI: 10.1021/acsomega.2c04732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Poly(ADP-ribosyl)ation is a post-translational modification that produces poly(ADP-ribose) with a branched structure every 20-50 units; such branching structure has been previously suggested to be involved in regulating chromatin remodeling. To elucidate its detailed functions, we developed a straightforward method for the synthesis of the poly(ADP-ribose) branched core structure, α-d-ribofuranosyl-(1‴ → 2″)-α-d-ribofuranosyl-(1″ → 2')-adenosine 5',5'',5‴-trisphosphate 1, from 6-chloropurine ribofuranoside 4 in 10 steps and 6.1% overall yield. The structure poses synthetic challenges for constructing iterative α-1,2-cis-glycosidic bonds in the presence of a purine base and the installation of three phosphate groups at primary hydroxyl groups. Iterative glycosidic bonds were formed by α-1,2-cis-selective ribofuranosylation using 2-O-(2-naphthylmethyl)-protected thioglycoside donor 6 and a thiophilic bismuth promoter. After the construction of diribofuranosyl adenosine 5 had been constructed, it was chemo- and regioselectively phosphorylated at a later stage. Subsequent deprotection provided the synthetic target 1.
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Affiliation(s)
- Rui Hagino
- The
United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
- Department
of Applied Bioorganic Chemistry, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Keita Mozaki
- Department
of Applied Bioorganic Chemistry, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Naoko Komura
- Institute
for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Akihiro Imamura
- Institute
for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
- The
United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
- Department
of Applied Bioorganic Chemistry, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Hideharu Ishida
- Institute
for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
- The
United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
- Department
of Applied Bioorganic Chemistry, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Hiromune Ando
- Institute
for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
- The
United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Hide-Nori Tanaka
- Institute
for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
- The
United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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4
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Ishiwata A, Tanaka K, Ao J, Ding F, Ito Y. Recent advances in stereoselective 1,2-cis-O-glycosylations. Front Chem 2022; 10:972429. [PMID: 36059876 PMCID: PMC9437320 DOI: 10.3389/fchem.2022.972429] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 07/08/2022] [Indexed: 02/03/2023] Open
Abstract
For the stereoselective assembly of bioactive glycans with various functions, 1,2-cis-O-glycosylation is one of the most essential issues in synthetic carbohydrate chemistry. The cis-configured O-glycosidic linkages to the substituents at two positions of the non-reducing side residue of the glycosides such as α-glucopyranoside, α-galactopyranoside, β-mannopyranoside, β-arabinofuranoside, and other rather rare glycosides are found in natural glycans, including glycoconjugate (glycoproteins, glycolipids, proteoglycans, and microbial polysaccharides) and glycoside natural products. The way to 1,2-trans isomers is well sophisticated by using the effect of neighboring group participation from the most effective and kinetically favored C-2 substituent such as an acyl group, although high stereoselective synthesis of 1,2-cis glycosides without formation of 1,2-trans isomers is far less straightforward. Although the key factors that control the stereoselectivity of glycosylation are largely understood since chemical glycosylation was considered to be one of the useful methods to obtain glycosidic linkages as the alternative way of isolation from natural sources, strictly controlled formation of these 1,2-cis glycosides is generally difficult. This minireview introduces some of the recent advances in the development of 1,2-cis selective glycosylations, including the quite recent developments in glycosyl donor modification, reaction conditions, and methods for activation of intermolecular glycosylation, including the bimodal glycosylation strategy for 1,2-cis and 1,2-trans glycosides, as well as intramolecular glycosylations, including recent applications of NAP-ether-mediated intramolecular aglycon delivery.
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Affiliation(s)
- Akihiro Ishiwata
- RIKEN Cluster for Pioneering Research, Saitama, Japan
- *Correspondence: Akihiro Ishiwata, ; Feiqing Ding, ; Yukishige Ito,
| | - Katsunori Tanaka
- RIKEN Cluster for Pioneering Research, Saitama, Japan
- School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo, Japan
| | - Jiaming Ao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen, China
| | - Feiqing Ding
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen, China
- *Correspondence: Akihiro Ishiwata, ; Feiqing Ding, ; Yukishige Ito,
| | - Yukishige Ito
- RIKEN Cluster for Pioneering Research, Saitama, Japan
- Graduate School of Science, Osaka University, Osaka, Japan
- *Correspondence: Akihiro Ishiwata, ; Feiqing Ding, ; Yukishige Ito,
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5
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Synthesis of naturally occurring β-l-arabinofuranosyl-l-arabinofuranoside structures towards the substrate specificity evaluation of β-l-arabinofuranosidase. Bioorg Med Chem 2022; 68:116849. [PMID: 35653870 DOI: 10.1016/j.bmc.2022.116849] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/18/2022] [Accepted: 05/19/2022] [Indexed: 11/23/2022]
Abstract
Methyl β-l-arabinofuranosyl-(1 → 2)-, -(1 → 3)-, and -(1 → 5)-α-l-arabinofuranosides have been stereoselectively synthesized through 2-naphthylmethyl ether-mediated intramolecular aglycon delivery (NAP-IAD), whose β-linkages were confirmed by NMR analysis on the 3JH1-H2 coupling constant and 13C chemical shift of C1. The NAP-IAD approach was simply extended for the synthesis of trisaccharide motifs possessing β-l-arabinofuranosyl-(1 → 5)-l-arabinofuranosyl non-reducing terminal structure with the branched β-l-arabinofuranosyl-(1 → 5)-[α-l-arabinofuranosyl-(1 → 3)]-α-l-arabinofuranosyl and the liner β-l-arabinofuranosyl-(1 → 5)-β-l-arabinofuranosyl-(1 → 5)-β-l-arabinofuranosyl structures in olive arabinan and dinoflagellate polyethers, respectively. The results on the substrate specificity of a bifidobacterial β-l-arabinofuranosidase HypBA1 using the regioisomers indicated that HypBA1 could hydrolyze all three linkages however behaved clearly less active to β-(1 → 5)-linked disaccharide than other two regioisomers including the proposed natural degradation product, β-(1 → 2)-linked one from plant extracellular matrix such as extensin. On the other hand, Xanthomonas XeHypBA1 was found to hydrolyze all three disaccharides as the substrate with higher specificity to β-(1 → 2)-linkage than bifidobacterial HypBA1.
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6
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Ito Y. If I Look Back at Myself. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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7
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Nakagawa Y, Yamaji F, Miyanishi W, Ojika M, Igarashi Y, Ito Y. Binding Evaluation of Pradimicins for Oligomannose Motifs from Fungal Mannans. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200305] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Yu Nakagawa
- Department of Applied Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan
- Institute for Glyco-core Research (iGCORE), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan
- RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Fumiya Yamaji
- Department of Applied Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan
| | - Wataru Miyanishi
- Department of Applied Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan
| | - Makoto Ojika
- Department of Applied Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan
| | - Yasuhiro Igarashi
- Biotechnology Research Center, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Yukishige Ito
- RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
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8
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Liu J, Yin X, Li Z, Wu X, Zheng Z, Fang J, Gu G, Wang PG, Liu X. Facile Enzymatic Synthesis of Diverse Naturally-Occurring β- d-Mannopyranosides Catalyzed by Glycoside Phosphorylases. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05378] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jing Liu
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, Shandong 266237, China
| | - Xuefei Yin
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, Shandong 266237, China
| | - Zitao Li
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, Shandong 266237, China
| | - Xiaocong Wu
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, Shandong 266237, China
| | - Zhaoxuan Zheng
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, Shandong 266237, China
| | - Junqiang Fang
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, Shandong 266237, China
| | - Guofeng Gu
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, Shandong 266237, China
| | - Peng G. Wang
- School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Xianwei Liu
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, Shandong 266237, China
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9
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Gannedi V, Ali A, Singh PP, Vishwakarma RA. Total Synthesis of Phospholipomannan of Candida albicans. J Org Chem 2020; 85:7757-7771. [PMID: 32425042 DOI: 10.1021/acs.joc.0c00402] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
First, total synthesis of the cell surface phospholipomannan anchor [β-Manp-(1 → 2)-β-Manp]n-(1 → 2)-β-Manp-(1 → 2)-α-Manp-1 → P-(O → 6)-α-Manp-(1 → 2)-Inositol-1-P-(O → 1)-phytoceramide of Candida albicans is reported. The target phospholipomannan (PLM) anchor poses synthetic challenges such as the unusual kinetically controlled (1 → 2)-β-oligomannan domain, anomeric phosphodiester, and unique phytoceramide lipid tail linked to the glycan through a phosphate group. The synthesis of PLM anchor was accomplished using a convergent block synthetic approach using three main appropriately protected building blocks: (1 → 2)-β-tetramannan repeats, pseudodisaccharide, and phytoceramide-1-H-phosphonate. The most challenging (1 → 2)-β-tetramannan domain was synthesized in one pot using the preactivation method. The phytoceramide-1-H-phosphonate was synthesized through an enantioselective A3 three-component coupling reaction. Finally, the phytoceramide-1-H-phosphonate moiety was coupled with pseudodisaccharide followed by deacetylation to produce the acceptor, which on subsequent coupling with tetramannosyl-H-phosphonate provided the fully protected PLM anchor. Final deprotection was successfully achieved by Pearlman's hydrogenation.
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Affiliation(s)
- Veeranjaneyulu Gannedi
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India.,Academy of Scientific and Innovative Research, Canal Road, Jammu 180001, India
| | - Asif Ali
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India.,Academy of Scientific and Innovative Research, Canal Road, Jammu 180001, India
| | - Parvinder Pal Singh
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India.,Academy of Scientific and Innovative Research, Canal Road, Jammu 180001, India
| | - Ram A Vishwakarma
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India.,Academy of Scientific and Innovative Research, Canal Road, Jammu 180001, India
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10
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Zhang W, Meredith R, Yoon MK, Wang X, Woods RJ, Carmichael I, Serianni AS. Synthesis and O-Glycosidic Linkage Conformational Analysis of 13C-Labeled Oligosaccharide Fragments of an Antifreeze Glycolipid. J Org Chem 2019; 84:1706-1724. [PMID: 30624062 DOI: 10.1021/acs.joc.8b01411] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
NMR studies of two 13C-labeled disaccharides and a tetrasaccharide were undertaken that comprise the backbone of a novel thermal hysteresis glycolipid containing a linear glycan sequence of alternating [βXyl p-(1→4)-βMan p-(1→4)] n dimers. Experimental trans-glycoside NMR J-couplings, parameterized equations obtained from density functional theory (DFT) calculations, and an in-house circular statistics package ( MA'AT) were used to derive conformational models of linkage torsion angles ϕ and ψ in solution, which were compared to those obtained from molecular dynamics simulations. Modeling using different probability distribution functions showed that MA'AT models of ϕ in βMan(1→4)βXyl and βXyl(1→4)βMan linkages are very similar in the disaccharide building blocks, whereas MA'AT models of ψ differ. This pattern is conserved in the tetrasaccharide, showing that linkage context does not influence linkage geometry in this linear system. Good agreement was observed between the MA'AT and MD models of ψ with respect to mean values and circular standard deviations. Significant differences were observed for ϕ, indicating that revision of the force-field employed by GLYCAM is probably needed. Incorporation of the experimental models of ϕ and ψ into the backbone of an octasaccharide fragment leads to a helical amphipathic topography that may affect the thermal hysteresis properties of the glycolipid.
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Affiliation(s)
| | | | | | - Xiaocong Wang
- Complex Carbohydrate Research Center , University of Georgia , Athens , Georgia 30602 , United States
| | - Robert J Woods
- Complex Carbohydrate Research Center , University of Georgia , Athens , Georgia 30602 , United States
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11
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Vessella G, Casillo A, Fabozzi A, Traboni S, Iadonisi A, Corsaro MM, Bedini E. Synthesis of the tetrasaccharide repeating unit of the cryoprotectant capsular polysaccharide from Colwellia psychrerythraea 34H. Org Biomol Chem 2019; 17:3129-3140. [DOI: 10.1039/c9ob00104b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Synthesis of the threonine-decorated tetrasaccharide repeating unit of a cryoprotectant polysaccharide with a glycosaminoglycan-like structure.
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Affiliation(s)
- Giulia Vessella
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Angela Casillo
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Antonio Fabozzi
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Serena Traboni
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Alfonso Iadonisi
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Maria Michela Corsaro
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Emiliano Bedini
- Department of Chemical Sciences
- University of Naples Federico II
- Complesso Universitario Monte S. Angelo
- I-80126 Napoli
- Italy
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12
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Panza M, Pistorio SG, Stine KJ, Demchenko AV. Automated Chemical Oligosaccharide Synthesis: Novel Approach to Traditional Challenges. Chem Rev 2018; 118:8105-8150. [PMID: 29953217 PMCID: PMC6522228 DOI: 10.1021/acs.chemrev.8b00051] [Citation(s) in RCA: 213] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Advances in carbohydrate chemistry have certainly made common oligosaccharides much more accessible. However, many current methods still rely heavily upon specialized knowledge of carbohydrate chemistry. The application of automated technologies to chemical and life science applications such as genomics and proteomics represents a vibrant field. These automated technologies also present opportunities for their application to organic synthesis, including that of the synthesis of oligosaccharides. However, application of automated methods to the synthesis of carbohydrates is an underdeveloped area as compared to other classes of biomolecules. The overarching goal of this review article is to present the advances that have been made at the interface of carbohydrate chemistry and automated technology.
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Affiliation(s)
- Matteo Panza
- Department of Chemistry and Biochemistry, University of Missouri–St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
| | - Salvatore G. Pistorio
- Department of Chemistry and Biochemistry, University of Missouri–St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
| | - Keith J. Stine
- Department of Chemistry and Biochemistry, University of Missouri–St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
| | - Alexei V. Demchenko
- Department of Chemistry and Biochemistry, University of Missouri–St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
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13
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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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14
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Li W, Gao Y, Li Q, Li ZJ. Ionic-liquid supported rapid synthesis of an N-glycan core pentasaccharide on a 10 g scale. Org Biomol Chem 2018; 16:4720-4727. [DOI: 10.1039/c8ob01046c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A hetero-branched N-glycan core pentasaccharide was rapidly assembled on a new ionic liquid support on a 10 g scale.
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Affiliation(s)
- Wei Li
- The State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Yu Gao
- The State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Qing Li
- The State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Zhong-Jun Li
- The State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
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15
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Abstract
Carbohydrate oligomers remain challenging targets for chemists due to the requirement for elaborate protecting and leaving group manipulations, functionalization, tedious purification, and sophisticated characterization. Achieving high stereocontrol in glycosylation reactions is arguably the major hurdle that chemists experience. This review article overviews methods for intramolecular glycosylation reactions wherein the facial stereoselectivity is achieved by tethering of the glycosyl donor and acceptor counterparts.
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Affiliation(s)
- Xiao G Jia
- Department of Chemistry and Biochemistry, University of Missouri - St. Louis, One University Blvd., 434 Benton Hall (MC27), St. Louis, MO 63121, USA
| | - Alexei V Demchenko
- Department of Chemistry and Biochemistry, University of Missouri - St. Louis, One University Blvd., 434 Benton Hall (MC27), St. Louis, MO 63121, USA
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16
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Jia XG, Demchenko AV. Intramolecular glycosylation. Beilstein J Org Chem 2017; 13:2028-2048. [PMID: 29062425 PMCID: PMC5629421 DOI: 10.3762/bjoc.13.201] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 09/13/2017] [Indexed: 12/11/2022] Open
Abstract
Carbohydrate oligomers remain challenging targets for chemists due to the requirement for elaborate protecting and leaving group manipulations, functionalization, tedious purification, and sophisticated characterization. Achieving high stereocontrol in glycosylation reactions is arguably the major hurdle that chemists experience. This review article overviews methods for intramolecular glycosylation reactions wherein the facial stereoselectivity is achieved by tethering of the glycosyl donor and acceptor counterparts.
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Affiliation(s)
- Xiao G Jia
- Department of Chemistry and Biochemistry, University of Missouri - St. Louis, One University Blvd., 434 Benton Hall (MC27), St. Louis, MO 63121, USA
| | - Alexei V Demchenko
- Department of Chemistry and Biochemistry, University of Missouri - St. Louis, One University Blvd., 434 Benton Hall (MC27), St. Louis, MO 63121, USA
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17
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2011-2012. MASS SPECTROMETRY REVIEWS 2017; 36:255-422. [PMID: 26270629 DOI: 10.1002/mas.21471] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 01/15/2015] [Indexed: 06/04/2023]
Abstract
This review is the seventh update of the original article published in 1999 on the application of MALDI mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2012. General aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, and fragmentation are covered in the first part of the review and applications to various structural types constitute the remainder. The main groups of compound are oligo- and poly-saccharides, glycoproteins, glycolipids, glycosides, and biopharmaceuticals. Much of this material is presented in tabular form. Also discussed are medical and industrial applications of the technique, studies of enzyme reactions, and applications to chemical synthesis. © 2015 Wiley Periodicals, Inc. Mass Spec Rev 36:255-422, 2017.
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Affiliation(s)
- David J Harvey
- Department of Biochemistry, Oxford Glycobiology Institute, University of Oxford, Oxford, OX1 3QU, UK
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18
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Kawahara H, Matsuda Y, Sakaguchi T, Arai N, Koide Y. Antifreeze Activity of Xylomannan from the Mycelium and Fruit Body of Flammulina velutipes. Biocontrol Sci 2017; 21:153-9. [PMID: 27667520 DOI: 10.4265/bio.21.153] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
An identified class of antifreeze, a xylomannan-based thermal hysteresis (TH)-producing glycolipid, has been discovered from diverse taxa, including plants, insects, and amphibians. We isolated xylomannan from the mycelium and fruit body of the basidiomycete Flammulina velutipes using successive hot extraction with water, 2% and 25% aqueous KOH, and gel filtration chromatography. The xylomannan from the fruit body had a recrystallization inhibiting (RI) activity (RI=0.44) at 0.5 mg/mL. The dried weight yield of the fruit body (7.7×10(-2)%, w/w) was higher than that of the mycelium. Although the purified xylomannan from both soures were composed of mannose and xylose in a 2 : 1 molar ratio, the molecular weight of the xylomannan from the mycelium and fruit body was 320,000 and 240,000, respectively. The RI activity of mycelial xylomannan was higher than that from the fruit body (RI=0.57) at 45 µg/mL. Although this RI activity was able to remain constant after exposure to various conditions, we confirmed that the decrease of RI activity was stimulated by the decrease of molecular weight that was caused by heating during the alkaline condition. The survival rate of the CHO cells at -20℃ for two days increased to 97% due to the addition of 20 µg/mL of purified xylomannan. This was the first report to indicate that xylomannan from the mycelium of Flammulina velutipes had a high level of ice recrystallization inhibiting activity like antifreeze proteins from plants and had rhe potential to become a new material for cell storage.
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19
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Tang SL, Pohl NLB. Automated fluorous-assisted solution-phase synthesis of β-1,2-, 1,3-, and 1,6-mannan oligomers. Carbohydr Res 2016; 430:8-15. [PMID: 27155895 PMCID: PMC4893899 DOI: 10.1016/j.carres.2016.03.025] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 03/29/2016] [Accepted: 03/30/2016] [Indexed: 12/30/2022]
Abstract
Automated solution-phase syntheses of β-1,2-, 1,3-, and 1,6-mannan oligomers have been accomplished by applying a β-directing C-5 carboxylate strategy. Fluorous-tag-assisted purification after each reaction cycle allowed the synthesis of short β-mannan oligomers with limited loading of glycosyl donor-as low as 3.0 equivalents for each glycosylation cycle. This study showed the capability of the automated solution-phase synthesis protocol for synthesizing various challenging glycosides, including use of a C-5 ester as a protecting group that could be converted under reductive conditions to a hydroxymethyl group for chain extension.
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Affiliation(s)
- Shu-Lun Tang
- Department of Chemistry, Iowa State University, Ames, IA 50011, USA
| | - Nicola L B Pohl
- Department of Chemistry, Iowa State University, Ames, IA 50011, USA; Department of Chemistry, Indiana University, Bloomington, IN 47405, USA.
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20
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Nguyen H, Zhu D, Li X, Zhu J. Stereoselective Construction of β‐Mannopyranosides by Anomeric
O
‐Alkylation: Synthesis of the Trisaccharide Core of
N
‐linked Glycans. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600488] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Hai Nguyen
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering The University of Toledo Toledo OH 43606 USA
| | - Danyang Zhu
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering The University of Toledo Toledo OH 43606 USA
| | - Xiaohua Li
- Department of Natural Sciences University of Michigan-Dearborn Dearborn MI 48128 USA
| | - Jianglong Zhu
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering The University of Toledo Toledo OH 43606 USA
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21
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Nguyen H, Zhu D, Li X, Zhu J. Stereoselective Construction of β-Mannopyranosides by Anomeric O-Alkylation: Synthesis of the Trisaccharide Core of N-linked Glycans. Angew Chem Int Ed Engl 2016; 55:4767-71. [PMID: 26948686 DOI: 10.1002/anie.201600488] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Indexed: 01/07/2023]
Abstract
A new and efficient approach for direct and stereoselective synthesis of β-mannopyranosides by anomeric O-alkylation has been developed. This anomeric O-alkylation of mannopyranose-derived lactols is proposed to occur under synergistic control of a kinetic anomeric effect and metal chelation. The presence of a conformationally flexible C6 oxygen atom in the sugar-derived lactol donors is required for this anomeric O-alkylation to be efficient, probably because of its chelation with cesium ion. In contrast, the presence of a C2 oxygen atom plays a minor role. This glycosylation method has been successfully utilized for the synthesis of the trisaccharide core of complex N-linked glycans.
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Affiliation(s)
- Hai Nguyen
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, OH, 43606, USA
| | - Danyang Zhu
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, OH, 43606, USA
| | - Xiaohua Li
- Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, MI, 48128, USA.
| | - Jianglong Zhu
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, OH, 43606, USA.
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23
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Fujikawa K, Seko A, Takeda Y, Ito Y. Approaches toward High-Mannose-Type Glycan Libraries. CHEM REC 2015; 16:35-46. [DOI: 10.1002/tcr.201500222] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Indexed: 01/27/2023]
Affiliation(s)
- Kohki Fujikawa
- Japan Science and Technology Agency (JST), ERATO Ito Glycotrilogy Project; 2-1 Hirosawa Wako Saitama 351-0198 Japan
- SUNTORY Bioorganic Research Institute; 8-1-1 Seikadai Seika-cho Soraku-gun Kyoto 619-0284 Japan
| | - Akira Seko
- Japan Science and Technology Agency (JST), ERATO Ito Glycotrilogy Project; 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Yoichi Takeda
- Japan Science and Technology Agency (JST), ERATO Ito Glycotrilogy Project; 2-1 Hirosawa Wako Saitama 351-0198 Japan
- Department of Biotechnology, College of Life Sciences; Ritsumeikan University; 1-1-1 Noji-higashi Kusatsu Shiga 525-8577 Japan
| | - Yukishige Ito
- Japan Science and Technology Agency (JST), ERATO Ito Glycotrilogy Project; 2-1 Hirosawa Wako Saitama 351-0198 Japan
- Synthetic Cellular Chemistry Laboratory; RIKEN; 2-1 Hirosawa Wako Saitama 351-0198 Japan
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24
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Duman JG. Animal ice-binding (antifreeze) proteins and glycolipids: an overview with emphasis on physiological function. J Exp Biol 2015; 218:1846-55. [DOI: 10.1242/jeb.116905] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
ABSTRACT
Ice-binding proteins (IBPs) assist in subzero tolerance of multiple cold-tolerant organisms: animals, plants, fungi, bacteria etc. IBPs include: (1) antifreeze proteins (AFPs) with high thermal hysteresis antifreeze activity; (2) low thermal hysteresis IBPs; and (3) ice-nucleating proteins (INPs). Several structurally different IBPs have evolved, even within related taxa. Proteins that produce thermal hysteresis inhibit freezing by a non-colligative mechanism, whereby they adsorb onto ice crystals or ice-nucleating surfaces and prevent further growth. This lowers the so-called hysteretic freezing point below the normal equilibrium freezing/melting point, producing a difference between the two, termed thermal hysteresis. True AFPs with high thermal hysteresis are found in freeze-avoiding animals (those that must prevent freezing, as they die if frozen) especially marine fish, insects and other terrestrial arthropods where they function to prevent freezing at temperatures below those commonly experienced by the organism. Low thermal hysteresis IBPs are found in freeze-tolerant organisms (those able to survive extracellular freezing), and function to inhibit recrystallization – a potentially damaging process whereby larger ice crystals grow at the expense of smaller ones – and in some cases, prevent lethal propagation of extracellular ice into the cytoplasm. Ice-nucleator proteins inhibit supercooling and induce freezing in the extracellular fluid at high subzero temperatures in many freeze-tolerant species, thereby allowing them to control the location and temperature of ice nucleation, and the rate of ice growth. Numerous nuances to these functions have evolved. Antifreeze glycolipids with significant thermal hysteresis activity were recently identified in insects, frogs and plants.
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Abstract
![]()
The
first automated solution-phase synthesis of β-1,4-mannuronate
and β-1,4-mannan oligomers has been accomplished by using a
β-directing C-5 carboxylate strategy. By utilizing fluorous-tag
assisting purification after repeated reaction cycles, β-1,4-mannuronate
was synthesized up to a hexasaccharide with limited loading of a glycosyl
donor (up to 3.5 equiv) for each glycosylation cycle due to the homogeneous
solution-phase reaction condition. After a global reduction of the
uronates, the β-1,4-mannan hexasaccharide was obtained, thereby
demonstrating a new approach to β-mannan synthesis.
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Affiliation(s)
- Shu-Lun Tang
- †Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Nicola L B Pohl
- †Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States.,‡Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
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26
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Zhang X, Zhou Y, Zuo J, Yu B. Total synthesis of periploside A, a unique pregnane hexasaccharide with potent immunosuppressive effects. Nat Commun 2015; 6:5879. [PMID: 25600477 PMCID: PMC4309423 DOI: 10.1038/ncomms6879] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 11/18/2014] [Indexed: 01/06/2023] Open
Abstract
Periploside A is a pregnane hexasaccharide identified from the Chinese medicinal plant Periploca sepium, which features a unique seven-membered formyl acetal bridged orthoester (FABO) motif and potent immunosuppressive activities. Here, we show the synthesis of this molecule in a total of 76 steps with the longest linear sequence of 29 steps and 9.2% overall yield. The FABO motif is constructed via a combination of Sinaÿ's and Crich's protocol for the formation of orthoester and acetal glycosides, respectively. The 2-deoxy-β-glycosidic linkages are assembled stereoselectively with judicious choice of the glycosylation methods. The epimer at the spiro-quaternary carbon in the FABO motif has also been elaborated in a stereo-controlled manner. This epimer, as well as the synthetic analogues bearing the FABO motif, retain largely the inhibitory activities of periploside A against the proliferation of T-lymphocyte, indicating the importance of the chemical connection of the FABO motif to their immunosuppressive activity.
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Affiliation(s)
- Xiaheng Zhang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yu Zhou
- State Key Laboratory of New Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Jianping Zuo
- State Key Laboratory of New Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Biao Yu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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27
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Ishiwata A, Kaeothip S, Takeda Y, Ito Y. Synthesis of the Highly Glycosylated Hydrophilic Motif of Extensins. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404904] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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28
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Ishiwata A, Kaeothip S, Takeda Y, Ito Y. Synthesis of the Highly Glycosylated Hydrophilic Motif of Extensins. Angew Chem Int Ed Engl 2014; 53:9812-6. [DOI: 10.1002/anie.201404904] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Indexed: 01/08/2023]
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29
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Tamigney Kenfack M, Blériot Y, Gauthier C. Intramolecular Aglycon Delivery Enables the Synthesis of 6-Deoxy-β-d-manno-heptosides as Fragments of Burkholderia pseudomallei and Burkholderia mallei Capsular Polysaccharide. J Org Chem 2014; 79:4615-34. [DOI: 10.1021/jo500640n] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marielle Tamigney Kenfack
- Université de Poitiers, Institut de Chimie IC2MP, UMR-CNRS 7285, Équipe Synthèse Organique, 4 rue Michel
Brunet, 86073 Poitiers, France
| | - Yves Blériot
- Université de Poitiers, Institut de Chimie IC2MP, UMR-CNRS 7285, Équipe Synthèse Organique, 4 rue Michel
Brunet, 86073 Poitiers, France
| | - Charles Gauthier
- Université de Poitiers, Institut de Chimie IC2MP, UMR-CNRS 7285, Équipe Synthèse Organique, 4 rue Michel
Brunet, 86073 Poitiers, France
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30
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Gannedi V, Ali A, Singh PP, Vishwakarma RA. Intramolecular aglycon delivery for (1→2)-β-mannosylation: towards the synthesis of phospholipomannan of Candida albicans. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.099] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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32
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Koizumi A, Matsuo I, Takatani M, Seko A, Hachisu M, Takeda Y, Ito Y. Top-Down Chemoenzymatic Approach to a High-Mannose-Type Glycan Library: Synthesis of a Common Precursor and Its Enzymatic Trimming. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301613] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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33
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Koizumi A, Matsuo I, Takatani M, Seko A, Hachisu M, Takeda Y, Ito Y. Top-Down Chemoenzymatic Approach to a High-Mannose-Type Glycan Library: Synthesis of a Common Precursor and Its Enzymatic Trimming. Angew Chem Int Ed Engl 2013; 52:7426-31. [DOI: 10.1002/anie.201301613] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 05/01/2013] [Indexed: 01/20/2023]
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34
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Mizrahy O, Bar-Dolev M, Guy S, Braslavsky I. Inhibition of ice growth and recrystallization by zirconium acetate and zirconium acetate hydroxide. PLoS One 2013; 8:e59540. [PMID: 23555701 PMCID: PMC3605400 DOI: 10.1371/journal.pone.0059540] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 02/15/2013] [Indexed: 12/29/2022] Open
Abstract
The control over ice crystal growth, melting, and shaping is important in a variety of fields, including cell and food preservation and ice templating for the production of composite materials. Control over ice growth remains a challenge in industry, and the demand for new cryoprotectants is high. Naturally occurring cryoprotectants, such as antifreeze proteins (AFPs), present one solution for modulating ice crystal growth; however, the production of AFPs is expensive and inefficient. These obstacles can be overcome by identifying synthetic substitutes with similar AFP properties. Zirconium acetate (ZRA) was recently found to induce the formation of hexagonal cavities in materials prepared by ice templating. Here, we continue this line of study and examine the effects of ZRA and a related compound, zirconium acetate hydroxide (ZRAH), on ice growth, shaping, and recrystallization. We found that the growth rate of ice crystals was significantly reduced in the presence of ZRA and ZRAH, and that solutions containing these compounds display a small degree of thermal hysteresis, depending on the solution pH. The compounds were found to inhibit recrystallization in a manner similar to that observed in the presence of AFPs. The favorable properties of ZRA and ZRAH suggest tremendous potential utility in industrial applications.
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Affiliation(s)
- Ortal Mizrahy
- The Institute of Biochemistry, Food Science, and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Maya Bar-Dolev
- The Institute of Biochemistry, Food Science, and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
- * E-mail:
| | - Shlomit Guy
- The Institute of Biochemistry, Food Science, and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Ido Braslavsky
- The Institute of Biochemistry, Food Science, and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
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35
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Haridas V, Naik S. Natural macromolecular antifreeze agents to synthetic antifreeze agents. RSC Adv 2013. [DOI: 10.1039/c3ra00081h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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36
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Ishiwata A, Ito Y. Intramolecular Aglycon Delivery and Its Application to Stereoselective Synthesis of Glycans. J SYN ORG CHEM JPN 2012. [DOI: 10.5059/yukigoseikyokaishi.70.382] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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