1
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Sumida T, Hiraoka S, Usui K, Ishiwata A, Sengoku T, Stubbs KA, Tanaka K, Deguchi S, Fushinobu S, Nunoura T. Genetic and functional diversity of β-N-acetylgalactosamine-targeting glycosidases expanded by deep-sea metagenome analysis. Nat Commun 2024; 15:3543. [PMID: 38730244 PMCID: PMC11087588 DOI: 10.1038/s41467-024-47653-2] [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: 08/23/2023] [Accepted: 04/08/2024] [Indexed: 05/12/2024] Open
Abstract
β-N-Acetylgalactosamine-containing glycans play essential roles in several biological processes, including cell adhesion, signal transduction, and immune responses. β-N-Acetylgalactosaminidases hydrolyze β-N-acetylgalactosamine linkages of various glycoconjugates. However, their biological significance remains ambiguous, primarily because only one type of enzyme, exo-β-N-acetylgalactosaminidases that specifically act on β-N-acetylgalactosamine residues, has been documented to date. In this study, we identify four groups distributed among all three domains of life and characterize eight β-N-acetylgalactosaminidases and β-N-acetylhexosaminidase through sequence-based screening of deep-sea metagenomes and subsequent searching of public protein databases. Despite low sequence similarity, the crystal structures of these enzymes demonstrate that all enzymes share a prototype structure and have diversified their substrate specificities (oligosaccharide-releasing, oligosaccharide/monosaccharide-releasing, and monosaccharide-releasing) through the accumulation of mutations and insertional amino acid sequences. The diverse β-N-acetylgalactosaminidases reported in this study could facilitate the comprehension of their structures and functions and present evolutionary pathways for expanding their substrate specificity.
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Affiliation(s)
- Tomomi Sumida
- Research Center for Bioscience and Nanoscience, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan.
| | - Satoshi Hiraoka
- Research Center for Bioscience and Nanoscience, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan
| | - Keiko Usui
- Research Center for Bioscience and Nanoscience, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan
| | | | - Toru Sengoku
- Department of Biochemistry, Yokohama City University Graduate School of Medicine, Kanazawa-ku, Yokohama, Japan
| | - Keith A Stubbs
- School of Molecular Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Katsunori Tanaka
- RIKEN, Cluster for Pioneering Research, Wako, Saitama, Japan
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo, Japan
| | - Shigeru Deguchi
- Research Center for Bioscience and Nanoscience, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan
| | - Shinya Fushinobu
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
| | - Takuro Nunoura
- Research Center for Bioscience and Nanoscience, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan
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2
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Kandasamy P, Mori S, Matsuda S, Erande N, Datta D, Willoughby JLS, Taneja N, O'Shea J, Bisbe A, Manoharan RM, Yucius K, Nguyen T, Indrakanti R, Gupta S, Gilbert JA, Racie T, Chan A, Liu J, Hutabarat R, Nair JK, Charisse K, Maier MA, Rajeev KG, Egli M, Manoharan M. Metabolically Stable Anomeric Linkages Containing GalNAc-siRNA Conjugates: An Interplay among ASGPR, Glycosidase, and RISC Pathways. J Med Chem 2023; 66:2506-2523. [PMID: 36757090 DOI: 10.1021/acs.jmedchem.2c01337] [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: 02/10/2023]
Abstract
Conjugation of synthetic triantennary N-acetyl-d-galactosamine (GalNAc) to small interfering RNA (siRNA) mediates binding to the asialoglycoprotein receptor (ASGPR) on the surface of hepatocytes, facilitating liver-specific uptake and siRNA-mediated gene silencing. The natural β-glycosidic bond of the GalNAc ligand is rapidly cleaved by glycosidases in vivo. Novel GalNAc ligands with S-, and C-glycosides with both α- and β-anomeric linkages, N-glycosides with β-anomeric linkage, and the O-glycoside with α-anomeric linkage were synthesized and conjugated to siRNA either on-column during siRNA synthesis or through a high-throughput, post-synthetic method. Unlike natural GalNAc, modified ligands were resistant to glycosidase activity. The siRNAs conjugated to newly designed ligands had similar affinities for ASGPR and similar silencing activity in mice as the parent GalNAc-siRNA conjugate. These data suggest that other factors, such as protein-nucleic acid interactions and loading of the antisense strand into the RNA-induced silencing complex (RISC), are more critical to the duration of action than the stereochemistry and stability of the anomeric linkage between the GalNAc moiety of the ligand conjugated to the sense strand of the siRNA.
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Affiliation(s)
| | - Shohei Mori
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Shigeo Matsuda
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Namrata Erande
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Dhrubajyoti Datta
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | | | - Nate Taneja
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Jonathan O'Shea
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Anna Bisbe
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Rajar M Manoharan
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Kristina Yucius
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Tuyen Nguyen
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Ramesh Indrakanti
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Swati Gupta
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Jason A Gilbert
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Tim Racie
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Amy Chan
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Ju Liu
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Renta Hutabarat
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Jayaprakash K Nair
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Klaus Charisse
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | - Martin A Maier
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
| | | | - Martin Egli
- Department of Biochemistry, School of Medicine, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Muthiah Manoharan
- Alnylam Pharmaceuticals, Inc., Cambridge, Massachusetts 02142, United States
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3
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Ribeiro Morais G, Falconer RA. Glycosyl disulfides: importance, synthesis and application to chemical and biological systems. Org Biomol Chem 2021; 19:82-100. [DOI: 10.1039/d0ob02079f] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
This review explores methodologies for the preparation of glycosyl disulfides, their utility as intermediates in carbohydrate synthesis, and evaluates their biological impact in glycoscience and beyond.
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Affiliation(s)
- Goreti Ribeiro Morais
- Institute of Cancer Therapeutics
- Faculty of Life Sciences
- University of Bradford
- Bradford BD7 1DP
- UK
| | - Robert A. Falconer
- Institute of Cancer Therapeutics
- Faculty of Life Sciences
- University of Bradford
- Bradford BD7 1DP
- UK
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4
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Romero NA, Parker WO, Swager TM. Functional, Redox-Responsive Poly(phenylene sulfide)-Based Gels. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01855] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Nathan A. Romero
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Wallace O. Parker
- Eni S.p.A., Physical Chemistry Department, 20097 San Donato Milanese, Italy
| | - Timothy M. Swager
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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5
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Manna T, Misra AK. Glycosyl selenoacetates: versatile building blocks for the preparation of stereoselective selenoglycosides and selenium linked disaccharides. Org Biomol Chem 2019; 17:8902-8912. [PMID: 31553009 DOI: 10.1039/c9ob01623f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Glycosyl selenoacetate derivatives were prepared by the treatment of glycosyl halide with potassium selenocyanate followed by acetylation of in situ generated glycosyl selenols in one pot. A variety of selenoglycosides and selenium linked disaccharide derivatives were prepared in very good to excellent yields using glycosyl selenoacetates as stable building blocks under mild reaction conditions.
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Affiliation(s)
- Tapasi Manna
- Bose Institute, Division of Molecular Medicine, P-1/12, C.I.T. Scheme VII M, Kolkata 700054, India.
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6
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Montoir D, Amoura M, Ababsa ZEA, Vishwanatha TM, Yen-Pon E, Robert V, Beltramo M, Piller V, Alami M, Aucagne V, Messaoudi S. Synthesis of aryl-thioglycopeptides through chemoselective Pd-mediated conjugation. Chem Sci 2018; 9:8753-8759. [PMID: 30627396 PMCID: PMC6295873 DOI: 10.1039/c8sc02370k] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 09/18/2018] [Indexed: 12/17/2022] Open
Abstract
We describe herein a Pd-catalyzed methodology for the thioglycoconjugation of iodoaryl peptides and aminoacids. This operationally simple process occurs under semi-aqueous conditions and displays wide substrate scope. The strategy has been successfully applied to both the thioglycosylation of unprotected peptides and the generation of thioglyco-aminoacid building blocks, including those suitable for solid phase peptide synthesis. To demonstrate the broad potential of this technique for late stage functionalization, we successfully incorporated challenging unprotected β-S-GlcNAc- and α-S-GalNAc-derivatives into very long unprotected peptides. This study opens the way to new applications in chemical biology, considering the well-recognized advantages of S-glycosides over O-glycosides in terms of resistance towards both enzymatic and chemical degradation.
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Affiliation(s)
- David Montoir
- BioCIS , Univ. Paris-Sud , CNRS , Univ. Paris-Saclay , Châtenay-Malabry , France . ; Tel: +33 0146835887
| | - Mehdi Amoura
- Centre de Biophysique Moléculaire , CNRS , Orléans , France . ; Tel: +33 0238255577
| | - Zine El Abidine Ababsa
- BioCIS , Univ. Paris-Sud , CNRS , Univ. Paris-Saclay , Châtenay-Malabry , France . ; Tel: +33 0146835887
| | - T M Vishwanatha
- Centre de Biophysique Moléculaire , CNRS , Orléans , France . ; Tel: +33 0238255577
| | - Expédite Yen-Pon
- BioCIS , Univ. Paris-Sud , CNRS , Univ. Paris-Saclay , Châtenay-Malabry , France . ; Tel: +33 0146835887
| | - Vincent Robert
- UMR Physiologie de la Reproduction et des Comportements , INRA , CNRS , Univ. Tours , IFCE , Nouzilly , France
| | - Massimiliano Beltramo
- UMR Physiologie de la Reproduction et des Comportements , INRA , CNRS , Univ. Tours , IFCE , Nouzilly , France
| | - Véronique Piller
- Centre de Biophysique Moléculaire , CNRS , Orléans , France . ; Tel: +33 0238255577
| | - Mouad Alami
- BioCIS , Univ. Paris-Sud , CNRS , Univ. Paris-Saclay , Châtenay-Malabry , France . ; Tel: +33 0146835887
| | - Vincent Aucagne
- Centre de Biophysique Moléculaire , CNRS , Orléans , France . ; Tel: +33 0238255577
| | - Samir Messaoudi
- BioCIS , Univ. Paris-Sud , CNRS , Univ. Paris-Saclay , Châtenay-Malabry , France . ; Tel: +33 0146835887
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7
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Kacmaz A, Acar ET, Atun G, Kaya K, Sigirci BD, Bagcigil F. Synthesis, Electrochemistry, DFT Calculations, Antimicrobial Properties and X‐ray Crystal Structures of Some NH‐ and/or S‐ Substituted‐1,4‐quinones. ChemistrySelect 2018. [DOI: 10.1002/slct.201801155] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Aysecik Kacmaz
- Department of ChemistryDivision of Organic ChemistryIstanbul University-Cerrappasa, Avcılar Istanbul 34320 Turkey
| | - Elif Turker Acar
- Department of ChemistryDivision of Physical ChemistryIstanbul University-Cerrahpasa, Avcılar Istanbul 34320 Turkey
| | - Gulten Atun
- Department of ChemistryDivision of Physical ChemistryIstanbul University-Cerrahpasa, Avcılar Istanbul 34320 Turkey
| | - Kerem Kaya
- Department of ChemistryFaculty of Science and Lett.Istanbul Technical University Istanbul 34469 Turkey
| | - Belgi Diren Sigirci
- Department of MicrobiologyFaculty of Veterinary MedicineIstanbul University-Cerrahpasa, Avcılar Istanbul 34320 Turkey
| | - Funda Bagcigil
- Department of MicrobiologyFaculty of Veterinary MedicineIstanbul University-Cerrahpasa, Avcılar Istanbul 34320 Turkey
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8
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Kaltner H, Manning JC, García Caballero G, Di Salvo C, Gabba A, Romero-Hernández LL, Knospe C, Wu D, Daly HC, O'Shea DF, Gabius HJ, Murphy PV. Revealing biomedically relevant cell and lectin type-dependent structure–activity profiles for glycoclusters by using tissue sections as an assay platform. RSC Adv 2018; 8:28716-28735. [PMID: 35542469 PMCID: PMC9084366 DOI: 10.1039/c8ra05382k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 07/24/2018] [Indexed: 12/05/2022] Open
Abstract
The increasing realization of the involvement of lectin-glycan recognition in (patho)physiological processes inspires envisioning therapeutic intervention by high-avidity/specificity blocking reagents. Synthetic glycoclusters are proving to have potential for becoming such inhibitors but the commonly used assays have their drawbacks to predict in vivo efficacy. They do not represent the natural complexity of (i) cell types and (ii) spatial and structural complexity of glycoconjugate representation. Moreover, testing lectins in mixtures, as present in situ, remains a major challenge, giving direction to this work. Using a toolbox with four lectins and six bi- to tetravalent glycoclusters bearing the cognate sugar in a model study, we here document the efficient and versatile application of tissue sections (from murine jejunum as the model) as a platform for routine and systematic glycocluster testing without commonly encountered limitations. The nature of glycocluster structure, especially core and valency, and of protein features, i.e. architecture, fine-specificity and valency, are shown to have an influence, as cell types can differ in response profiles. Proceeding from light microscopy to monitoring by fluorescence microscopy enables grading of glycocluster activity on individual lectins tested in mixtures. This work provides a robust tool for testing glycoclusters prior to considering in vivo experiments. Introducing tissue sections for testing glycocluster activity as inhibitors of lectin binding close to in vivo conditions.![]()
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9
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Roth C, Petricevic M, John A, Goddard-Borger ED, Davies GJ, Williams SJ. Structural and mechanistic insights into a Bacteroides vulgatus retaining N-acetyl-β-galactosaminidase that uses neighbouring group participation. Chem Commun (Camb) 2016; 52:11096-9. [PMID: 27546776 DOI: 10.1039/c6cc04649e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bacteroides vulgatus is a member of the human microbiota whose abundance is increased in patients with Crohn's disease. We show that a B. vulgatus glycoside hydrolase from the carbohydrate active enzyme family GH123, BvGH123, is an N-acetyl-β-galactosaminidase that acts with retention of stereochemistry, and, through a 3-D structure in complex with Gal-thiazoline, provide evidence in support of a neighbouring group participation mechanism.
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Affiliation(s)
- C Roth
- Department of Chemistry, University of York, Heslington, York, UK.
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10
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Rojas-Ocáriz V, Compañón I, Aydillo C, Castro-Loṕez J, Jiménez-Barbero J, Hurtado-Guerrero R, Avenoza A, Zurbano MM, Peregrina JM, Busto JH, Corzana F. Design of α-S-Neoglycopeptides Derived from MUC1 with a Flexible and Solvent-Exposed Sugar Moiety. J Org Chem 2016; 81:5929-41. [PMID: 27305427 DOI: 10.1021/acs.joc.6b00833] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The use of vaccines based on MUC1 glycopeptides is a promising approach to treat cancer. We present herein several sulfa-Tn antigens incorporated in MUC1 sequences that possess a variable linker between the carbohydrate (GalNAc) and the peptide backbone. The main conformations of these molecules in solution have been evaluated by combining NMR experiments and molecular dynamics simulations. The linker plays a key role in the modulation of the conformation of these compounds at different levels, blocking a direct contact between the sugar moiety and the backbone, promoting a helix-like conformation for the glycosylated residue and favoring the proper presentation of the sugar unit for molecular recognition events. The feasibility of these novel compounds as mimics of MUC1 antigens has been validated by the X-ray diffraction structure of one of these unnatural derivatives complexed to an anti-MUC1 monoclonal antibody. These features, together with potential lack of immune suppression, render these unnatural glycopeptides promising candidates for designing alternative therapeutic vaccines against cancer.
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Affiliation(s)
- Víctor Rojas-Ocáriz
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
| | - Ismael Compañón
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
| | - Carlos Aydillo
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
| | - Jorge Castro-Loṕez
- BIFI, University of Zaragoza, BIFI-IQFR (CSIC) Joint Unit , Mariano Esquillor s/n, Campus Rio Ebro, Edificio I+D, Zaragoza, Spain
| | - Jesús Jiménez-Barbero
- Structural Biology Unit, CIC bioGUNE , Parque Tecnológico de Bizkaia Building 801 A, 48160 Derio, Spain.,IKERBASQUE, Basque Foundation for Science , 48011 Bilbao, Spain.,Department of Chemical and Physical Biology, Centro de Investigaciones Biológicas , CSIC Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Ramón Hurtado-Guerrero
- BIFI, University of Zaragoza, BIFI-IQFR (CSIC) Joint Unit , Mariano Esquillor s/n, Campus Rio Ebro, Edificio I+D, Zaragoza, Spain.,Fundación ARAID , 50018 Zaragoza, Spain
| | - Alberto Avenoza
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
| | - María M Zurbano
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
| | - Jesús M Peregrina
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
| | - Jesús H Busto
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
| | - Francisco Corzana
- Departamento de Química, Centro de Investigación en Síntesis Química, Universidad de La Rioja , Madre de Dios 53, 26006 Logroño, Spain
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11
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Gutiérrez-Jiménez MI, Aydillo C, Navo CD, Avenoza A, Corzana F, Jiménez-Osés G, Zurbano MM, Busto JH, Peregrina JM. Bifunctional Chiral Dehydroalanines for Peptide Coupling and Stereoselective S-Michael Addition. Org Lett 2016; 18:2796-9. [DOI: 10.1021/acs.orglett.6b00840] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marta I. Gutiérrez-Jiménez
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - Carlos Aydillo
- CECB,
Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Claudio D. Navo
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - Alberto Avenoza
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - Francisco Corzana
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - Gonzalo Jiménez-Osés
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
- Institute
of Biocomputation and Physics of Complex Systems (BIFI), University of Zaragoza, BIFI-IQFR (CSIC), 50018 Zaragoza, Spain
| | - María M. Zurbano
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - Jesús H. Busto
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
| | - Jesús M. Peregrina
- Departamento
de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
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12
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Alteen MG, Oehler V, Nemčovičová I, Wilson IBH, Vocadlo DJ, Gloster TM. Mechanism of Human Nucleocytoplasmic Hexosaminidase D. Biochemistry 2016; 55:2735-47. [PMID: 27149221 PMCID: PMC4878814 DOI: 10.1021/acs.biochem.5b01285] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
![]()
Mammalian
β-hexosaminidases have been shown to play essential
roles in cellular physiology and health. These enzymes are responsible
for the cleavage of the monosaccharides N-acetylglucosamine
(GlcNAc) and N-acetylgalactosamine (GalNAc) from
cellular substrates. One of these β-hexosaminidases, hexosaminidase
D (HexD), encoded by the HEXDC gene, has received
little attention. No mechanistic studies have focused on the role
of this unusual nucleocytoplasmically localized β-hexosaminidase,
and its cellular function remains unknown. Using a series of kinetic
and mechanistic investigations into HexD, we define the precise catalytic
mechanism of this enzyme and establish the identities of key enzymic
residues. The preparation of synthetic aryl N-acetylgalactosaminide
substrates for HexD in combination with measurements of kinetic parameters
for wild-type and mutant enzymes, linear free energy analyses of the
enzyme-catalyzed hydrolysis of these substrates, evaluation of the
reaction by nuclear magnetic resonance, and inhibition studies collectively
reveal the detailed mechanism of action employed by HexD. HexD is
a retaining glycosidase that operates using a substrate-assisted catalytic
mechanism, has a preference for galactosaminide over glucosaminide
substrates, and shows a pH optimum in its second-order rate constant
at pH 6.5–7.0. The catalytically important residues are Asp148
and Glu149, with Glu149 serving as the general acid/base residue and
Asp148 as the polarizing residue. HexD is inhibited by Gal-NAG-thiazoline
(Ki = 420 nM). The fundamental insights
gained from this study will aid in the development of potent and selective
probes for HexD, which will serve as useful tools to improve our understanding
of the physiological role played by this unusual enzyme.
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Affiliation(s)
- Matthew G Alteen
- Department of Chemistry, Simon Fraser University , 8888 University Drive, Burnaby, BC V5A 1S6, Canada.,Biomedical Sciences Research Complex, University of St Andrews , North Haugh, St Andrews, Fife KY16 9ST, U.K
| | - Verena Oehler
- Biomedical Sciences Research Complex, University of St Andrews , North Haugh, St Andrews, Fife KY16 9ST, U.K
| | - Ivana Nemčovičová
- Department für Chemie, Universität für Bodenkultur , Muthgasse 18, A-1190 Wien, Austria
| | - Iain B H Wilson
- Department für Chemie, Universität für Bodenkultur , Muthgasse 18, A-1190 Wien, Austria
| | - David J Vocadlo
- Department of Chemistry, Simon Fraser University , 8888 University Drive, Burnaby, BC V5A 1S6, Canada
| | - Tracey M Gloster
- Biomedical Sciences Research Complex, University of St Andrews , North Haugh, St Andrews, Fife KY16 9ST, U.K
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13
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André S, O'Sullivan S, Koller C, Murphy PV, Gabius HJ. Bi- to tetravalent glycoclusters presenting GlcNAc/GalNAc as inhibitors: from plant agglutinins to human macrophage galactose-type lectin (CD301) and galectins. Org Biomol Chem 2015; 13:4190-203. [PMID: 25721929 DOI: 10.1039/c5ob00048c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Emerging insights into the functional spectrum of tissue lectins leads to identification of new targets for the custom-made design of potent inhibitors, providing a challenge for synthetic chemistry. The affinity and selectivity of a carbohydrate ligand for a lectin may immensely be increased by a number of approaches, which includes varying geometrical or topological features. This perspective leads to the design and synthesis of glycoclusters and their testing using assays of physiological relevance. Herein, hydroquinone, resorcinol, benzene-1,3,5-triol and tetra(4-hydroxyphenyl)ethene have been employed as scaffolds and propargyl derivatives obtained. The triazole-containing linker to the α/β-O/S-glycosides of GlcNAc/GalNAc presented on these scaffolds was generated by copper-catalysed azide-alkyne cycloaddition. This strategy was used to give a panel of nine glycoclusters with bi-, tri- and tetravalency. Maintained activity for lectin binding after conjugation was ascertained for both sugars in solid-phase assays with the plant agglutinins WGA (GlcNAc) and DBA (GalNAc). Absence of cross-reactivity excluded any carbohydrate-independent reactivity of the bivalent compounds, allowing us to proceed to further testing with a biomedically relevant lectin specific for GalNAc. Macrophage galactose(-binding C)-type lectin, involved in immune defence by dendritic cells and in virus uptake, was produced as a soluble protein without/with its α-helical coiled-coil stalk region. Binding to ligands presented on a matrix and on cell surfaces was highly susceptible to the presence of the tetravalent inhibitor derived from the tetraphenylethene-containing scaffold, and presentation of GalNAc with an α-thioglycosidic linkage proved favorable. Cross-reactivity of this glycocluster to human galectins-3 and -4, which interact with Tn-antigen-presenting mucins, was rather small. Evidently, the valency and spatial display of α-GalNAc residues is a key factor to design potent and selective inhibitors for this lectin.
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Affiliation(s)
- Sabine André
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
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14
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Krejzová J, Kalachova L, Šimon P, Pelantová H, Slámová K, Křen V. Inhibition of microbial β-N-acetylhexosaminidases by 4-deoxy- and galacto-analogues of NAG-thiazoline. Bioorg Med Chem Lett 2014; 24:5321-3. [PMID: 25442323 DOI: 10.1016/j.bmcl.2014.09.066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 09/11/2014] [Accepted: 09/12/2014] [Indexed: 11/24/2022]
Abstract
NAG-thiazoline is a well-established competitive inhibitor of two physiologically relevant glycosidase families-β-N-acetylhexosaminidases (GH20) and β-N-acetylglucosaminidases (GH84). Based on the different substrate flexibilities of these enzyme groups, we designed and synthesized the 4-deoxy derivative of NAG-thiazoline aiming at the selective inhibition of GH20 β-N-acetylhexosaminidases. One GH84 and two GH20 microbial glycosidases were employed as model enzymes for the inhibition assays. Surprisingly, the new compound 4-deoxy-thiazoline exhibited no activity inhibition with either of the enzyme families of interest. Unlike with the substrates, the 4-hydroxyl group of the inhibitor's sugar ring seems to be crucial for binding the inhibitor to the active sites of these enzymes.
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Affiliation(s)
- Jana Krejzová
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ 14220 Praha 4, Czech Republic; Department of Biochemistry and Microbiology, Institute of Chemical Technology Prague, Technická 5, CZ 16628 Praha 6, Czech Republic
| | - Lubica Kalachova
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ 14220 Praha 4, Czech Republic
| | - Petr Šimon
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ 14220 Praha 4, Czech Republic
| | - Helena Pelantová
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ 14220 Praha 4, Czech Republic
| | - Kristýna Slámová
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ 14220 Praha 4, Czech Republic.
| | - Vladimír Křen
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ 14220 Praha 4, Czech Republic
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15
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Aydillo C, Compañón I, Avenoza A, Busto JH, Corzana F, Peregrina JM, Zurbano MM. S-Michael additions to chiral dehydroalanines as an entry to glycosylated cysteines and a sulfa-Tn antigen mimic. J Am Chem Soc 2014; 136:789-800. [PMID: 24372047 DOI: 10.1021/ja411522f] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Stereoselective sulfa-Michael addition of appropriately protected thiocarbohydrates to chiral dehydroalanines has been developed as a key step in the synthesis of biologically important cysteine derivatives, such as S-(β-D-glucopyranosyl)-D-cysteine, which has not been synthesized to date, and S-(2-acetamido-2-deoxy-α-D-galactopyranosyl)-L-cysteine, which could be considered as a mimic of Tn antigen. The corresponding diamide derivative was also synthesized and analyzed from a conformational viewpoint, and its bound state with a lectin was studied.
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Affiliation(s)
- Carlos Aydillo
- Departamento de Química, Universidad de La Rioja , Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
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16
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Yoo B, Cheal SM, Torchon G, Dilhas A, Yang G, Pu J, Punzalan B, Larson SM, Ouerfelli O. N-acetylgalactosamino dendrons as clearing agents to enhance liver targeting of model antibody-fusion protein. Bioconjug Chem 2013; 24:2088-103. [PMID: 24147780 PMCID: PMC3900322 DOI: 10.1021/bc400333m] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Dendrimer clearing agents represent a unique class of compounds for use in multistep targeting (MST) in radioimmunotherapy and imaging. These compounds were developed to facilitate the removal of excess tumor-targeting monoclonal antibody (mAb) prior to administration of the radionuclide to minimize exposure of normal tissue to radiation. Clearing agents are designed to capture the circulating mAb, and target it to the liver for metabolism. Glycodendrons are ideally suited for MST applications as these highly branched compounds are chemically well-defined, thus advantageous over heterogeneous macromolecules. Previous studies have described glycodendron 3 as a clearing agent for use in three-step MST protocols, and early in vivo assessment of 3 showed promise. However, synthetic challenges have hampered its availability for further development. In this report we describe a new sequence of chemical steps which enables the straightforward synthesis and analytical characterization of this class of dendrons. With accessibility and analytical identification solved, we sought to evaluate both lower and higher generation dendrons for hepatocyte targeting as well as clearance of a model protein. We prepared a series of clearing agents where a single biotin is connected to glycodendrons displaying four, eight, sixteen or thirty-two α-thio-N-acetylgalactosamine (α-SGalNAc) units, resulting in compounds with molecular weights ranging from 2 to 17 kDa, respectively. These compounds were fully characterized by LCMS and NMR. We then evaluated the capacity of these agents to clear a model (131)I-labeled single chain variable fragment antibody-streptavidin ((131)I-scFv-SAv) fusion protein from blood and tissue in mice, and compared their clearing efficiencies to that of a 500 kDa dextran-biotin conjugate. Glycodendrons and dextran-biotin exhibited enhanced blood clearance of the scFv-SAv construct. Biodistribution analysis showed liver targeting/uptake of the scFv-SAv construct to be 2-fold higher for compounds 1 to 4, as well as for the 500 kDa dextran, over saline. Additionally, the data suggest the glycodendrons clear through the liver, whereas the dextran through reticuloendothelial system (RES) metabolism.
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Affiliation(s)
- Barney Yoo
- Organic Synthesis Core Facility, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
- Molecular Pharmacology and Chemistry Program, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
| | - Sarah M. Cheal
- Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
| | - Geralda Torchon
- Organic Synthesis Core Facility, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
- Molecular Pharmacology and Chemistry Program, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
| | - Anna Dilhas
- Organic Synthesis Core Facility, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
- Molecular Pharmacology and Chemistry Program, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
| | - Guangbin Yang
- Organic Synthesis Core Facility, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
- Molecular Pharmacology and Chemistry Program, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
| | - Jun Pu
- Organic Synthesis Core Facility, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
- Molecular Pharmacology and Chemistry Program, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
| | - Blesida Punzalan
- Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
| | - Steven M. Larson
- Molecular Pharmacology and Chemistry Program, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
- Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
- Molecular Pharmacology and Therapy Service, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
| | - Ouathek Ouerfelli
- Organic Synthesis Core Facility, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
- Molecular Pharmacology and Chemistry Program, Memorial Sloan-Kettering Cancer Center, New York, New York, United States
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17
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Novoa A, Barluenga S, Serba C, Winssinger N. Solid phase synthesis of glycopeptides using Shoda's activation of unprotected carbohydrates. Chem Commun (Camb) 2013; 49:7608-10. [DOI: 10.1039/c3cc43458c] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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18
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Lamprecht DA, Muneri NO, Eastwood H, Naidoo KJ, Strauss E, Jardine A. An enzyme-initiated Smiles rearrangement enables the development of an assay of MshB, the GlcNAc-Ins deacetylase of mycothiol biosynthesis. Org Biomol Chem 2012; 10:5278-88. [PMID: 22678300 DOI: 10.1039/c2ob25429h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MshB is the N-acetyl-1-D-myo-inosityl-2-amino-2-deoxy-D-glucopyranoside (GlcNAc-Ins) deacetylase active as one of the enzymes involved in the biosynthesis of mycothiol (MSH), a protective low molecular weight thiol present only in Mycobacterium tuberculosis and other actinomycetes. In this study, structural analogues of GlcNAc-Ins in which the inosityl moiety is replaced by a chromophore were synthesized and evaluated as alternate substrates of MshB, with the goal of identifying a compound that would be useful in high-throughput assays of the enzyme. In an unexpected and surprising finding one of the GlcNAc-Ins analogues is shown to undergo a Smiles rearrangement upon MshB-mediated deacetylation, uncovering a free thiol group. We demonstrate that this chemistry can be exploited for the development of the first continuous assay of MshB activity based on the detection of thiol formation by DTNB (Ellman's reagent); such an assay should be ideally suited for the identification of MshB inhibitors by means of high-throughput screens in microplates.
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Affiliation(s)
- Dirk A Lamprecht
- Department of Biochemistry, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
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19
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Zhu X, Dere RT, Jiang J, Zhang L, Wang X. Synthesis of α-Glycosyl Thiols by Stereospecific Ring-Opening of 1,6-Anhydrosugars. J Org Chem 2011; 76:10187-97. [DOI: 10.1021/jo202069y] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiangming Zhu
- Centre for
Synthesis and Chemical Biology, UCD School of Chemistry and Chemical
Biology, University College Dublin, Belfield,
Dublin 4, Ireland
- College
of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Ravindra T. Dere
- Centre for
Synthesis and Chemical Biology, UCD School of Chemistry and Chemical
Biology, University College Dublin, Belfield,
Dublin 4, Ireland
| | - Junyan Jiang
- College
of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Lei Zhang
- College
of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Xiaoxia Wang
- College
of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China
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20
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Dere RT, Kumar A, Kumar V, Zhu X, Schmidt RR. Synthesis of Glycosylthiols and Reactivity Studies. J Org Chem 2011; 76:7539-45. [DOI: 10.1021/jo200624e] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ravindra T. Dere
- Fachbereich Chemie, Universität Konstanz, Fach 725, D-78457 Konstanz, Germany
| | - Amit Kumar
- Fachbereich Chemie, Universität Konstanz, Fach 725, D-78457 Konstanz, Germany
| | - Vipin Kumar
- Fachbereich Chemie, Universität Konstanz, Fach 725, D-78457 Konstanz, Germany
| | - Xiangming Zhu
- College of Chemistry & Life Sciences, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Richard R. Schmidt
- Fachbereich Chemie, Universität Konstanz, Fach 725, D-78457 Konstanz, Germany
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21
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Deng L, Norberg O, Uppalapati S, Yan M, Ramström O. Stereoselective synthesis of light-activatable perfluorophenylazide-conjugated carbohydrates for glycoarray fabrication and evaluation of structural effects on protein binding by SPR imaging. Org Biomol Chem 2011; 9:3188-98. [PMID: 21423935 PMCID: PMC4030401 DOI: 10.1039/c1ob05040k] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of light-activatable perfluorophenylazide (PFPA)-conjugated carbohydrate structures have been synthesized and applied to glycoarray fabrication. The glycoconjugates were structurally varied with respect to anomeric attachment, S-, and O-linked carbohydrates, respectively, as well as linker structure and length. Efficient stereoselective synthetic routes were developed, leading to the formation of the PFPA-conjugated structures in good yields over few steps. The use of glycosyl thiols as donors proved especially efficient and provided the final compounds in up to 70% total yield with high anomeric purities. PFPA-based photochemistry was subsequently used to generate carbohydrate arrays on a polymeric surface, and surface plasmon resonance imaging (SPRi) was applied for evaluation of carbohydrate-protein interactions using the plant lectin Concanavalin A (Con A) as a probe. The results indicate better performance and equal efficiency of S- and O-linked structures with intermediate linker length.
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Affiliation(s)
- Lingquan Deng
- Department of Chemistry, KTH - Royal Institute of Technology, Teknikringen 30, S-10044, Stockholm, Sweden
| | - Oscar Norberg
- Department of Chemistry, KTH - Royal Institute of Technology, Teknikringen 30, S-10044, Stockholm, Sweden
| | - Suji Uppalapati
- Department of Chemistry, Portland State University, P.O. Box 751, Portland, Oregon, 97207-0751, USA
| | - Mingdi Yan
- Department of Chemistry, KTH - Royal Institute of Technology, Teknikringen 30, S-10044, Stockholm, Sweden
- Department of Chemistry, Portland State University, P.O. Box 751, Portland, Oregon, 97207-0751, USA
| | - Olof Ramström
- Department of Chemistry, KTH - Royal Institute of Technology, Teknikringen 30, S-10044, Stockholm, Sweden
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22
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Danalev D, Legentil L, Daniellou R, Nugier-Chauvin C, Ferrières V. Direct access to new β-d-galactofuranoconjugates: application to the synthesis of galactofuranosyl-l-cysteine and l-serine. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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23
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Floyd N, Vijayakrishnan B, Koeppe JR, Davis BG. Thiyl glycosylation of olefinic proteins: S-linked glycoconjugate synthesis. Angew Chem Int Ed Engl 2009; 48:7798-802. [PMID: 19739166 DOI: 10.1002/anie.200903135] [Citation(s) in RCA: 178] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Nicola Floyd
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
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24
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Floyd N, Vijayakrishnan B, Koeppe J, Davis B. Thiyl Glycosylation of Olefinic Proteins: S-Linked Glycoconjugate Synthesis. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200903135] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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25
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Rajan R, Mathew T, Buffa R, Bornancin F, Cavallari M, Nussbaumer P, De Libero G, Vasella A. Synthesis and Evaluation ofN-Acetyl-2-amino-2-deoxy-α-D-galactosyl 1-Thio-7-oxaceramide, a New Analogue ofα-D-Galactosyl Ceramide. Helv Chim Acta 2009. [DOI: 10.1002/hlca.200800454] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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26
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Crich D, Yang F. Synthesis of neoglycoconjugates by the desulfurative rearrangement of allylic disulfides. J Org Chem 2008; 73:7017-27. [PMID: 18729514 PMCID: PMC2742710 DOI: 10.1021/jo8015314] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Two series of neoglycosyl donors are prepared on the basis of connection of an allylic disulfide motif to the anomeric center via a simple O-glycosyl linkage or N-glycosyl amide unit. Conjugation of both sets of donors to cysteine in peptides is demonstrated through classical disulfide exchange followed by the phosphine-mediated desulfurative allylic rearrangement resulting in neoglycopeptides characterized by a simple thioether spacer. The conjugation reaction functions in the absence of protecting groups on both the neoglycosyl donor and peptide in aqueous media at room temperature.
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Affiliation(s)
- David Crich
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, USA.
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27
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N-Acetylhexosaminidase inhibitory properties of C-1 homologated GlcNAc- and GalNAc-thiazolines. Bioorg Med Chem Lett 2008; 18:2944-7. [DOI: 10.1016/j.bmcl.2008.03.067] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2008] [Accepted: 03/24/2008] [Indexed: 11/17/2022]
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28
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Dere RT, Wang Y, Zhu X. A direct and stereospecific approach to the synthesis of α-glycosyl thiols. Org Biomol Chem 2008; 6:2061-3. [DOI: 10.1039/b804536d] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Metaferia BB, Fetterolf BJ, Shazad-ul-Hussan S, Moravec M, Smith JA, Ray S, Gutierrez-Lugo MT, Bewley CA. Synthesis of Natural Product-Inspired Inhibitors of Mycobacterium tuberculosis Mycothiol-Associated Enzymes: The First Inhibitors of GlcNAc-Ins Deacetylase. J Med Chem 2007; 50:6326-36. [DOI: 10.1021/jm070669h] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Belhu B. Metaferia
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Brandon J. Fetterolf
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Syed Shazad-ul-Hussan
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Matthew Moravec
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Jeremy A. Smith
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Satyajit Ray
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Maria-Teresa Gutierrez-Lugo
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Carole A. Bewley
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
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30
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Knapp S, Abdo M, Ajayi K, Huhn RA, Emge TJ, Kim EJ, Hanover JA. Tautomeric modification of GlcNAc-thiazoline. Org Lett 2007; 9:2321-4. [PMID: 17508759 DOI: 10.1021/ol0706814] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The potent O-GlcNAcase (OGA) inhibitor GlcNAc-thiazoline has been modified by buffer- or acylation-induced imine-to-enamine conversion and then electrophile or radical addition (Xn = D3, F, N3, OH, SMe, COCF3, CF3). Several functionalized GlcNAc-thiazolines show highly selective inhibition of OGA vs human hexosaminidase and thus have promise as tools for targeted investigations of OGA, an enzyme linked to diabetes and neurodegeneration. A new radical addition/fragmentation reaction of the N-(trifluoroacetyl)enamine has been discovered.
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Affiliation(s)
- Spencer Knapp
- Department of Chemistry and Chemical Biology, Rutgers-The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, USA.
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31
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Abstract
The O,O-dibenzyl-S-glycosyl phosphothioite derived from 3,4,6-tri-O-acetyl-2-acetamido-2-deoxy-1-thio-alpha-D-glucopyranose rearranges under the influence of triethylborane and air to provide the corresponding 1-C-pyranosyl-O,O-dibenzylphosphonothioate, a new type of carbohydrate derivative. The isomeric beta phosphothioite is compared, and evidence of a radical chain mechanism for the Pudovik rearrangement is presented.
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Affiliation(s)
- Spencer Knapp
- Department of Chemistry & Chemical Biology, Rutgers - The State University of New Jersey 610 Taylor Road, Piscataway, New Jersey 08854-8087 USA
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32
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Crich D, Zou Y, Brebion F. Sigmatropic rearrangements as tools for amino acid and peptide modification: application of the allylic sulfur ylide rearrangement to the preparation of neoglycoconjugates and other conjugates. J Org Chem 2007; 71:9172-7. [PMID: 17109543 PMCID: PMC2615470 DOI: 10.1021/jo061439y] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reaction of S-allyl cysteine derivatives, generated by the selenocysteine ligation, with rhodium carbenoids, stabilized and unstabilized, enables the attachment of diverse functionality onto cysteine residues. The reaction is successfully applied to the introduction of lipid-like residues, a fluorous alkyl chain, and mono- and disaccharides.
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Affiliation(s)
- David Crich
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, USA.
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33
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He L, Zhi Zhang Y, Tanoh M, Chen GR, Praly JP, Chrysina ED, Tiraidis C, Kosmopoulou M, Leonidas DD, Oikonomakos NG. In the Search of Glycogen Phosphorylase Inhibitors: Synthesis of C-D-Glycopyranosylbenzo(hydro)quinones – Inhibition of and Binding to Glycogen Phosphorylase in the Crystal. European J Org Chem 2007. [DOI: 10.1002/ejoc.200600548] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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34
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Li Z, Gildersleeve JC. An armed-disarmed approach for blocking aglycon transfer of thioglycosides. Tetrahedron Lett 2007; 48:559-562. [PMID: 19043616 DOI: 10.1016/j.tetlet.2006.11.126] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Thioglycosides are used frequently as glycosyl donors and as mimetics of O-glycosides. While being very useful, thioglycosides are prone to a detrimental side reaction referred to as aglycon transfer. In this paper, it is shown that aglycon transfer can be blocked by matching thioglycoside-containing acceptors with more armed glycosyl donors.
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Affiliation(s)
- Zhitao Li
- Laboratory of Medicinal Chemistry, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702 USA
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35
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Jayakanthan K, Vankar YD. Hybrid sugars as glycosidase inhibitors en route to 2-deoxy-2-amino C-glycosyl amino acids. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.10.024] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Thayer DA, Yu HN, Galan MC, Wong CH. A general strategy toward S-linked glycopeptides. Angew Chem Int Ed Engl 2006; 44:4596-9. [PMID: 15991213 DOI: 10.1002/anie.200500090] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Desiree A Thayer
- Department of Chemistry and Skaggs Institute for Chemical Biology, Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
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37
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Pei Z, Larsson R, Aastrup T, Anderson H, Lehn JM, Ramström O. Quartz crystal microbalance bioaffinity sensor for rapid identification of glycosyldisulfide lectin inhibitors from a dynamic combinatorial library. Biosens Bioelectron 2006; 22:42-8. [PMID: 16406568 DOI: 10.1016/j.bios.2005.11.024] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2005] [Revised: 11/24/2005] [Accepted: 11/28/2005] [Indexed: 11/28/2022]
Abstract
Carbohydrate-lectin interactions were probed with dynamic combinatorial libraries, using the plant lectin Concanavalin A as target species. The dynamic combinatorial libraries were generated from a pool of thiol components through reversible thiol-disulfide interchange, and screened using a simple and efficient method based on a quartz crystal microbalance setup. It was found that dimers based on 1-thio- and 6-thio-mannose analogues were the most active inhibitors. Furthermore, the results clearly show that the 6-thio-mannose possess unique characteristics compared to its oxygen-containing counterpart.
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Affiliation(s)
- Zhichao Pei
- KTH-Royal Institute of Technology, Department of Chemistry, Teknikringen 30, S-10044 Stockholm, Sweden
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38
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Bernardes GJL, Gamblin DP, Davis BG. The Direct Formation of Glycosyl Thiols from Reducing Sugars Allows One-Pot Protein Glycoconjugation. Angew Chem Int Ed Engl 2006; 45:4007-11. [PMID: 16673441 DOI: 10.1002/anie.200600685] [Citation(s) in RCA: 106] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gonçalo J L Bernardes
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK.
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39
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Bernardes GJL, Gamblin DP, Davis BG. The Direct Formation of Glycosyl Thiols from Reducing Sugars Allows One-Pot Protein Glycoconjugation. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200600685] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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40
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Crich D, Krishnamurthy V, Hutton TK. Allylic selenosulfide rearrangement: a method for chemical ligation to cysteine and other thiols. J Am Chem Soc 2006; 128:2544-5. [PMID: 16492032 PMCID: PMC4658652 DOI: 10.1021/ja057521c] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Alkylation of potassium selenosulfate with allylic halides gives Se-allyl seleno Bunte salts. On reaction with thiols at room temperature, these afford mixed dialkyl selenosulfides, which undergo 2,3-sigmatropic rearrangement with loss of selenium, either spontaneously or with assistance by triphenylphosphine, thereby providing mixed dialkyl sulfides and a new permanent chemical ligation method. The process is illustrated through the lipidation of cysteine-containing tripeptides and by the allylation of 1-thioglucose tetraacetate.
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Affiliation(s)
- David Crich
- Department of Chemistry, University of Illinois at Chicago, 60607-7061, USA.
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41
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Knapp S, Darout E, Amorelli B. New Glycomimetics: Anomeric Sulfonates, Sulfenamides, and Sulfonamides. J Org Chem 2006; 71:1380-9. [PMID: 16468785 DOI: 10.1021/jo0520386] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis of a variety of new 1-thio-D-glucopyranose derivatives oxidized at the sulfur atom is described, including seven 1-C-sulfonic acids, three sulfonate esters, three sulfinate esters, an S,S'-diglycosyl thiolsulfonate and thiolsulfinate, four S-glycosyl sulfenamides, an S-glycosyl sulfinamide, and two S-glycosyl sulfonamides. These compounds possess unusual anomeric functionality that might be resistant or even inhibitory to normal enzymatic carbohydrate processing, and therefore, they may be of future use in studies of enzyme inhibition, structure, mechanism, and function.
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Affiliation(s)
- Spencer Knapp
- Department of Chemistry & Chemical Biology, Rutgers--State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, USA.
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42
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Bolognese A, Fierro O, Guarino D, Longobardo L, Caputo R. One-Pot Synthesis of Orthogonally Protected EnantiopureS-(Aminoalkyl)cysteine Derivatives. European J Org Chem 2006. [DOI: 10.1002/ejoc.200500464] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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43
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44
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Pei Z, Dong H, Ramström O. Solvent-Dependent, Kinetically Controlled Stereoselective Synthesis of 3- and 4-Thioglycosides. J Org Chem 2005; 70:6952-5. [PMID: 16095324 DOI: 10.1021/jo050650r] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Facile approaches to prepare 3- and 4-thioglycosides of the galacto, gulo, and gluco type from the parent triflates are presented. The dependencies of the solvent and the protecting group pattern, as well as the configuration of the neighboring and leaving groups, have been studied for these reactions. The results clearly show that the efficient stereoselective synthesis of methyl 3-thio-galactoside depends highly on the solvent and the nucleophile concentration.
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Affiliation(s)
- Zhichao Pei
- Department of Chemistry, Royal Institute of Technology, Teknikringen 30, S-10044 Stockholm, Sweden
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45
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Thayer DA, Yu HN, Galan MC, Wong CH. A General Strategy toward S-Linked Glycopeptides. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200500090] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Pei Z, Aastrup T, Anderson H, Ramström O. Redox-responsive and calcium-dependent switching of glycosyldisulfide interactions with Concanavalin A. Bioorg Med Chem Lett 2005; 15:2707-10. [PMID: 15878660 DOI: 10.1016/j.bmcl.2005.04.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2005] [Revised: 04/11/2005] [Accepted: 04/14/2005] [Indexed: 11/17/2022]
Abstract
Glycosyldisulfides can interact efficiently with carbohydrate-binding entities. This has been shown for a range of thiosaccharide dimers when tested for their effects against the lectin Concanavalin A using a modified quartz crystal microbalance-technique. Contrary to the thiosaccharide monomers, showing no significant binding up to 10 mM, several of the dimers showed IC(50)-values in the low millimolar range. Three of the glycosyldisulfides tested also displayed very high positive apparent cooperativity effects that were found to be both calcium-dependent and redox-responsive.
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Affiliation(s)
- Zhichao Pei
- KTH-Royal Institute of Technology, Department of Chemistry, Stockholm, Sweden
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47
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Knapp S, Amorelli B, Darout E, Ventocilla CC, Goldman LM, Huhn RA, Minnihan EC. A Family of Mycothiol Analogues. J Carbohydr Chem 2005. [DOI: 10.1081/car-200059965] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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48
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Sridhar P, Prabhu K, Chandrasekaran S. Synthesis of Thioglycosides by Tetrathiomolybdate-Mediated Michael Additions of Masked Thiolates. European J Org Chem 2004. [DOI: 10.1002/ejoc.200400360] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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49
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Knapp S, Amorelli B, A. Doss G. A fused GalNAc-thiazole from a singular and unanticipated fragmentation. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.09.091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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50
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Abstract
[structure: see text] The synthesis of a simplified thioglycosidic analogue (2) of mycothiol (1) is described. Evaluation of 2 against mycothiol S-conjugate amidase from Mycobacterium tuberculosis reveals good specific activity (7500 nmol min(-)(1) mg-protein(-)(1), vs 14 200 for 1), indicating that 2 can serve as a starting point for antitubercular drug design.
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Affiliation(s)
- Spencer Knapp
- Department of Chemistry and Chemical Biology, Rutgers The State University of New Jersey, 610 Taylor Rd., Piscataway, New Jersey 08854-8087, USA.
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