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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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2
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Kumar A, Gannedi V, Rather SA, Vishwakarma RA, Ahmed QN. Introducing Oxo-Phenylacetyl (OPAc) as a Protecting Group for Carbohydrates. J Org Chem 2019; 84:4131-4148. [PMID: 30888192 DOI: 10.1021/acs.joc.9b00126] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A series of oxo-phenylacetyl (OPAc)-protected saccharides, with divergent base sensitivity profiles against benzoyl (Bz) and acetyl (Ac) were synthesized, and KHSO5/AcCl in methanol was identified as an easy, mild, selective, and efficient deprotecting reagent for their removal in the perspective of carbohydrate synthesis. Timely monitoring of AcCl reagent was supportive in both sequential and simultaneous deprotecting of OPAc, Bz, and Ac. The salient feature of our method is the orthogonal stability against different groups, its ease to generate different valuable acceptors using designed monosaccharides, and use of OPAc as a glycosyl donar.
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Affiliation(s)
- Atul Kumar
- Medicinal Chemistry Division , Indian Institute of Integrative Medicine (IIIM) , Jammu 180001 , India.,Academy of Scientific and Innovative Research (AcSIR-IIIM) , Jammu 180001 , India
| | - Veeranjaneyulu Gannedi
- Medicinal Chemistry Division , Indian Institute of Integrative Medicine (IIIM) , Jammu 180001 , India.,Academy of Scientific and Innovative Research (AcSIR-IIIM) , Jammu 180001 , India
| | - Suhail A Rather
- Medicinal Chemistry Division , Indian Institute of Integrative Medicine (IIIM) , Jammu 180001 , India.,Academy of Scientific and Innovative Research (AcSIR-IIIM) , Jammu 180001 , India
| | - Ram A Vishwakarma
- Medicinal Chemistry Division , Indian Institute of Integrative Medicine (IIIM) , Jammu 180001 , India
| | - Qazi Naveed Ahmed
- Medicinal Chemistry Division , Indian Institute of Integrative Medicine (IIIM) , Jammu 180001 , India.,Academy of Scientific and Innovative Research (AcSIR-IIIM) , Jammu 180001 , India
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3
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Hunter CD, Guo T, Daskhan G, Richards MR, Cairo CW. Synthetic Strategies for Modified Glycosphingolipids and Their Design as Probes. Chem Rev 2018; 118:8188-8241. [DOI: 10.1021/acs.chemrev.8b00070] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Carmanah D. Hunter
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Tianlin Guo
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Gour Daskhan
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Michele R. Richards
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Christopher W. Cairo
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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Ding N, Li X, Chinoy ZS, Boons GJ. Synthesis of a Glycosylphosphatidylinositol Anchor Derived from Leishmania donovani That Can Be Functionalized by Cu-Catalyzed Azide-Alkyne Cycloadditions. Org Lett 2017; 19:3827-3830. [PMID: 28696125 PMCID: PMC5588658 DOI: 10.1021/acs.orglett.7b01703] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A flexible assembly strategy has been developed for the synthesis of Leishmania donovani GPI anchors that bear a clickable alkyne tag. This strategy is based on the use of the 2-naphthylmethyl (Nap) ethers and levulinoyl (Lev) ester for permanent protection of hydroxyls. Removal of seven Nap ethers by 2,3-dichloro-5,6-dicyano-1,4-benzoquinone made it possible to prepare GPIs having an alkyne functionality that could be modified by Cu(I)-catalyzed [3 + 2] cycloadditions to install tags for imaging studies.
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Affiliation(s)
- Ning Ding
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
- Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
| | - Xiuru Li
- Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
| | - Zoeisha S. Chinoy
- Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
- Department of Chemistry, The University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
| | - Geert-Jan Boons
- Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
- Department of Chemistry, The University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
- 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
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5
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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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6
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Saikam V, Dara S, Yadav M, Singh PP, Vishwakarma RA. Dimethyltin Dichloride Catalyzed Regioselective Alkylation of cis-1,2-Diols at Room Temperature. J Org Chem 2015; 80:11916-25. [DOI: 10.1021/acs.joc.5b01898] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Varma Saikam
- Medicinal
Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180
001, India
- Academy of Scientific and Innovative Research, Jammu 180001, India
| | - Saidulu Dara
- Medicinal
Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180
001, India
- Academy of Scientific and Innovative Research, Jammu 180001, India
| | - Mahipal Yadav
- Medicinal
Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180
001, India
| | - Parvinder Pal Singh
- Medicinal
Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180
001, India
- Academy of Scientific and Innovative Research, Jammu 180001, India
| | - Ram A. Vishwakarma
- Medicinal
Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180
001, India
- Academy of Scientific and Innovative Research, Jammu 180001, India
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Raghupathy R, Anilkumar AA, Polley A, Singh PP, Yadav M, Johnson C, Suryawanshi S, Saikam V, Sawant SD, Panda A, Guo Z, Vishwakarma RA, Rao M, Mayor S. Transbilayer lipid interactions mediate nanoclustering of lipid-anchored proteins. Cell 2015; 161:581-594. [PMID: 25910209 DOI: 10.1016/j.cell.2015.03.048] [Citation(s) in RCA: 279] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 11/12/2014] [Accepted: 03/18/2015] [Indexed: 01/22/2023]
Abstract
Understanding how functional lipid domains in live cell membranes are generated has posed a challenge. Here, we show that transbilayer interactions are necessary for the generation of cholesterol-dependent nanoclusters of GPI-anchored proteins mediated by membrane-adjacent dynamic actin filaments. We find that long saturated acyl-chains are required for forming GPI-anchor nanoclusters. Simultaneously, at the inner leaflet, long acyl-chain-containing phosphatidylserine (PS) is necessary for transbilayer coupling. All-atom molecular dynamics simulations of asymmetric multicomponent-membrane bilayers in a mixed phase provide evidence that immobilization of long saturated acyl-chain lipids at either leaflet stabilizes cholesterol-dependent transbilayer interactions forming local domains with characteristics similar to a liquid-ordered (lo) phase. This is verified by experiments wherein immobilization of long acyl-chain lipids at one leaflet effects transbilayer interactions of corresponding lipids at the opposite leaflet. This suggests a general mechanism for the generation and stabilization of nanoscale cholesterol-dependent and actin-mediated lipid clusters in live cell membranes.
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Affiliation(s)
- Riya Raghupathy
- National Centre for Biological Sciences (TIFR), Bellary Road, Bangalore 560 065, India; Shanmugha Arts, Science, Technology & Research Academy, Thanjavur 613401, India
| | - Anupama Ambika Anilkumar
- National Centre for Biological Sciences (TIFR), Bellary Road, Bangalore 560 065, India; Shanmugha Arts, Science, Technology & Research Academy, Thanjavur 613401, India
| | - Anirban Polley
- Raman Research Institute, C.V. Raman Avenue, Bangalore 560 080, India; Tampere University of Technology, Korkeakoulunkatu 10, 33720 Tampere, Finland
| | - Parvinder Pal Singh
- Indian Institute of Integrative Medicine (CSIR), Canal Road, Jammu 180001, India
| | - Mahipal Yadav
- Indian Institute of Integrative Medicine (CSIR), Canal Road, Jammu 180001, India
| | - Charles Johnson
- Wayne State University, 5101 Cass Avenue, Detroit, MI 48202, USA
| | | | - Varma Saikam
- Indian Institute of Integrative Medicine (CSIR), Canal Road, Jammu 180001, India
| | - Sanghapal D Sawant
- Indian Institute of Integrative Medicine (CSIR), Canal Road, Jammu 180001, India
| | - Aniruddha Panda
- National Centre for Biological Sciences (TIFR), Bellary Road, Bangalore 560 065, India; Manipal University, Madhav Nagar, Manipal 576104, Karnataka, India
| | - Zhongwu Guo
- Wayne State University, 5101 Cass Avenue, Detroit, MI 48202, USA
| | - Ram A Vishwakarma
- Indian Institute of Integrative Medicine (CSIR), Canal Road, Jammu 180001, India
| | - Madan Rao
- National Centre for Biological Sciences (TIFR), Bellary Road, Bangalore 560 065, India; Raman Research Institute, C.V. Raman Avenue, Bangalore 560 080, India.
| | - Satyajit Mayor
- National Centre for Biological Sciences (TIFR), Bellary Road, Bangalore 560 065, India; Institute for Stem Cell Biology and Regenerative Medicine, Bellary Road, Bangalore 560 065, India.
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8
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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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9
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Yadav M, Raghupathy R, Saikam V, Dara S, Singh PP, Sawant SD, Mayor S, Vishwakarma RA. Synthesis of non-hydrolysable mimics of glycosylphosphatidylinositol (GPI) anchors. Org Biomol Chem 2014; 12:1163-72. [DOI: 10.1039/c3ob42116c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Zeng QH, Zhang XW, Xu KP, Jiang JG. Application of fluorescently labeled tracer technique for detection of natural active macromolecules in Chinese medicine. Drug Metab Rev 2013; 46:57-71. [DOI: 10.3109/03602532.2013.839699] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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11
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McConnell MS, Mensah EA, Nguyen HM. Stereoselective α-glycosylation of C(6)-hydroxyl myo-inositols via nickel catalysis-application to the synthesis of GPI anchor pseudo-oligosaccharides. Carbohydr Res 2013; 381:146-52. [PMID: 24121123 DOI: 10.1016/j.carres.2013.09.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 09/06/2013] [Accepted: 09/14/2013] [Indexed: 10/26/2022]
Abstract
Glycosylphosphatidyl inositol (GPI) anchors play a key role in many eukaryotic biological pathways. Stereoselective synthesis of GPI anchor analogues have proven to be critical for probing the biosynthesis, structure, and biological properties of these compounds. Challenges that have emerged from these efforts include the preparation of the selectively protected myo-inositol building blocks and the stereoselective construction of glucosamine α-linked myo-inositol containing pseudodisaccharide units. Herein, we describe the effectiveness of the cationic nickel(II) catalyst, Ni(4-F-PhCN)4(OTf)2, at promoting selective formation of 1,2-cis-2-amino glycosidic bonds between the C(2)-N-substituted benzylideneamino trihaloacetimidate donors and C(6)-hydroxyl myo-inositol acceptors. This catalytic coupling process allows rapid access to pseudosaccharides of GPI anchors in good yields and with excellent levels of α-selectivity (α:β=10:1-20:1). In stark contrast, activation of trichloroacetimidate donors containing the C(2)-N-substituted benzylidene group with TMSOTf and BF3(.)OEt2 provided the desired pseudodisaccharides as a 1:1 mixture of α- and β-isomers.
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Affiliation(s)
- Matthew S McConnell
- Department of Chemistry, University of Iowa, Iowa City, IA 52242, United States
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12
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Stocker BL, Timmer MSM. Chemical Tools for Studying the Biological Function of Glycolipids. Chembiochem 2013; 14:1164-84. [DOI: 10.1002/cbic.201300064] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Indexed: 01/04/2023]
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