1
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Nguyen L, McCord KA, Bui DT, Bouwman KM, Kitova EN, Elaish M, Kumawat D, Daskhan GC, Tomris I, Han L, Chopra P, Yang TJ, Willows SD, Mason AL, Mahal LK, Lowary TL, West LJ, Hsu STD, Hobman T, Tompkins SM, Boons GJ, de Vries RP, Macauley MS, Klassen JS. Sialic acid-containing glycolipids mediate binding and viral entry of SARS-CoV-2. Nat Chem Biol 2022; 18:81-90. [PMID: 34754101 DOI: 10.1038/s41589-021-00924-1] [Citation(s) in RCA: 112] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 10/15/2021] [Indexed: 11/09/2022]
Abstract
Emerging evidence suggests that host glycans influence severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Here, we reveal that the receptor-binding domain (RBD) of the spike (S) protein on SARS-CoV-2 recognizes oligosaccharides containing sialic acid (Sia), with preference for monosialylated gangliosides. Gangliosides embedded within an artificial membrane also bind to the RBD. The monomeric affinities (Kd = 100-200 μM) of gangliosides for the RBD are similar to another negatively charged glycan ligand of the RBD proposed as a viral co-receptor, heparan sulfate (HS) dp2-dp6 oligosaccharides. RBD binding and infection of SARS-CoV-2 pseudotyped lentivirus to angiotensin-converting enzyme 2 (ACE2)-expressing cells is decreased following depletion of cell surface Sia levels using three approaches: sialyltransferase (ST) inhibition, genetic knockout of Sia biosynthesis, or neuraminidase treatment. These effects on RBD binding and both pseudotyped and authentic SARS-CoV-2 viral entry are recapitulated with pharmacological or genetic disruption of glycolipid biosynthesis. Together, these results suggest that sialylated glycans, specifically glycolipids, facilitate viral entry of SARS-CoV-2.
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Affiliation(s)
- Linh Nguyen
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Kelli A McCord
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Duong T Bui
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Kim M Bouwman
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - Elena N Kitova
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Mohamed Elaish
- Department of Cell Biology, University of Alberta, Edmonton, Alberta, Canada.,Poultry Disease Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Dhanraj Kumawat
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Gour C Daskhan
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Ilhan Tomris
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - Ling Han
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Pradeep Chopra
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, USA
| | - Tzu-Jing Yang
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
| | - Steven D Willows
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Andrew L Mason
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Lara K Mahal
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Todd L Lowary
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada.,Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan.,Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| | - Lori J West
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada.,Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada
| | - Shang-Te Danny Hsu
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan.,Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| | - Tom Hobman
- Department of Cell Biology, University of Alberta, Edmonton, Alberta, Canada.,Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada
| | - Stephen M Tompkins
- Center for Vaccines and Immunology, University of Georgia, Athens, GA, USA.,Emory-UGA Centers of Excellence for Influenza Research and Surveillance (CEIRS), Athens, GA, USA
| | - Geert-Jan Boons
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands.,Complex Carbohydrate Research Center, University of Georgia, Athens, GA, USA.,Department of Chemistry, University of Georgia, Athens, GA, USA.,Bijvoet Center for Biomolecular Research, Utrecht University, Utrecht, the Netherlands
| | - Robert P de Vries
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - Matthew S Macauley
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada. .,Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada.
| | - John S Klassen
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada.
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2
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Bentall A, Jeyakanthan M, Braitch M, Cairo CW, Lowary TL, Maier S, Halpin A, Motyka B, Zou L, West LJ, Ball S. Characterization of ABH-subtype donor-specific antibodies in ABO-A-incompatible kidney transplantation. Am J Transplant 2021; 21:3649-3662. [PMID: 34101982 PMCID: PMC8597088 DOI: 10.1111/ajt.16712] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 04/30/2021] [Accepted: 05/15/2021] [Indexed: 01/25/2023]
Abstract
ABO-incompatible (ABOi) transplantation requires preemptive antibody reduction; however, the relationship between antibody-mediated rejection (AMR) and ABO-antibodies, quantified by hemagglutination (HA), is inconsistent, possibly reflecting variable graft resistance to AMR or HA assay limitations. Using an ABH-glycan microarray, we quantified ABO-A antigen-subtype (A-subtype)-specific IgM and IgG in 53 ABO-O recipients of ABO-A kidneys, before and after antibody removal (therapeutic plasma exchange [TPE] or ABO-A-trisaccharide immunoadsorption [IA]) and 1-year posttransplant. IgM binding to all A-subtypes correlated highly (R2 ≥ .90) and A-subtype antibody specificities was reduced equally by IA versus TPE. IgG binding to the A-subtypes (II-IV) expressed in kidney correlated poorly (.27 ≤ R2 ≤ .69). Reduction of IgG specific to A-subtype-II was equivalent for IA and TPE, whereas IgG specific to A-subtypes-III/IV was not as greatly reduced by IA (p < .005). One-year posttransplant, IgG specific to A-II remained the most reduced antibody. Immunostaining revealed only A-II on vascular endothelium but A-subtypes II-III/IV on tubular epithelium. These results show that ABO-A-trisaccharide is sufficient for IgM binding to all A-subtypes; this is true for IgG binding to A-II, but not subtypes-III/IV, which exhibits varying degrees of specificity. We identify A-II as the major, but importantly not the sole, antigen relevant to treatment and immune modulation in adult ABO-A-incompatible kidney transplantation.
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Affiliation(s)
- Andrew Bentall
- Department of NephrologyUniversity HospitalBirminghamUK,Division of Nephrology and HypertensionMayo Clinic College of MedicineRochesterMinnesotaUSA
| | - Mylvaganam Jeyakanthan
- Department of Cardiothoracic SurgeryJames Cook University HospitalMiddlesbroughUK,Department of PediatricsUniversity of AlbertaEdmontonABCanada
| | | | - Christopher W. Cairo
- Alberta Glycomics Centre and Department of ChemistryUniversity of AlbertaEdmontonABCanada
| | - Todd L. Lowary
- Alberta Glycomics Centre and Department of ChemistryUniversity of AlbertaEdmontonABCanada
| | - Stephanie Maier
- Alberta Transplant Institute and Canadian Donation and Transplantation Research ProgramUniversity of AlbertaEdmontonABCanada
| | - Anne Halpin
- Department of PediatricsUniversity of AlbertaEdmontonABCanada,Alberta Transplant Institute and Canadian Donation and Transplantation Research ProgramUniversity of AlbertaEdmontonABCanada,Department of Laboratory Medicine and PathologyUniversity of AlbertaEdmontonABCanada
| | - Bruce Motyka
- Department of PediatricsUniversity of AlbertaEdmontonABCanada,Alberta Transplant Institute and Canadian Donation and Transplantation Research ProgramUniversity of AlbertaEdmontonABCanada
| | - Lu Zou
- Alberta Glycomics Centre and Department of ChemistryUniversity of AlbertaEdmontonABCanada
| | - Lori J. West
- Department of PediatricsUniversity of AlbertaEdmontonABCanada,Alberta Transplant Institute and Canadian Donation and Transplantation Research ProgramUniversity of AlbertaEdmontonABCanada,Department of Laboratory Medicine and PathologyUniversity of AlbertaEdmontonABCanada,Department of SurgeryUniversity of AlbertaEdmontonABCanada,Department of Medical Microbiology and ImmunologyUniversity of AlbertaEdmontonABCanada
| | - Simon Ball
- Department of NephrologyUniversity HospitalBirminghamUK,School of Immunity and InfectionUniversity of BirminghamBirminghamUK
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3
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Kazakova ED, Yashunsky DV, Nifantiev NE. The Synthesis of Blood Group Antigenic A Trisaccharide and Its Biotinylated Derivative. Molecules 2021; 26:5887. [PMID: 34641431 PMCID: PMC8512078 DOI: 10.3390/molecules26195887] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/24/2021] [Accepted: 09/24/2021] [Indexed: 01/04/2023] Open
Abstract
Blood group antigenic A trisaccharide represents the terminal residue of all A blood group antigens and plays a key role in blood cell recognition and blood group compatibility. Herein, we describe the synthesis of the spacered A trisaccharide by means of an assembly scheme that employs in its most complex step the recently proposed glycosyl donor of the 2-azido-2-deoxy-selenogalactoside type, bearing stereocontrolling 3-O-benzoyl and 4,6-O-(di-tert-butylsilylene)-protecting groups. Its application provided efficient and stereoselective formation of the required α-glycosylation product, which was then deprotected and subjected to spacer biotinylation to give both target products, which are in demand for biochemical studies.
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Affiliation(s)
| | | | - Nikolay E. Nifantiev
- Laboratory of Glycoconjugate Chemistry, N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky pr. 47, 119991 Moscow, Russia; (E.D.K.); (D.V.Y.)
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4
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Quintana JI, Delgado S, Núñez-Franco R, Cañada FJ, Jiménez-Osés G, Jiménez-Barbero J, Ardá A. Galectin-4 N-Terminal Domain: Binding Preferences Toward A and B Antigens With Different Peripheral Core Presentations. Front Chem 2021; 9:664097. [PMID: 33968903 PMCID: PMC8097242 DOI: 10.3389/fchem.2021.664097] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/15/2021] [Indexed: 01/22/2023] Open
Abstract
The tandem-repeat Galectin-4 (Gal-4) contains two different domains covalently linked through a short flexible peptide. Both domains have been shown to bind preferentially to A and B histo blood group antigens with different affinities, although the binding details are not yet available. The biological relevance of these associations is unknown, although it could be related to its attributed role in pathogen recognition. The presentation of A and B histo blood group antigens in terms of peripheral core structures differs among tissues and from that of the antigen-mimicking structures produced by pathogens. Herein, the binding of the N-terminal domain of Gal-4 toward a group of differently presented A and B oligosaccharide antigens in solution has been studied through a combination of NMR, isothermal titration calorimetry (ITC), and molecular modeling. The data presented in this paper allow the identification of the specific effects that subtle chemical modifications within this antigenic family have in the binding to the N-terminal domain of Gal-4 in terms of affinity and intermolecular interactions, providing a structural-based rationale for the observed trend in the binding preferences.
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Affiliation(s)
- Jon I Quintana
- CIC bioGUNE, Basque Research and Technology Alliance (BRTA), Derio, Spain
| | - Sandra Delgado
- CIC bioGUNE, Basque Research and Technology Alliance (BRTA), Derio, Spain
| | - Reyes Núñez-Franco
- CIC bioGUNE, Basque Research and Technology Alliance (BRTA), Derio, Spain
| | - F Javier Cañada
- Margarita Salas Center for Biological Research, Centro de Investigaciones Biológicas Margarita Salas, Spanish National Research Council, Madrid, Spain.,CIBER de Enfermedades Respiratorias (CIBERES) Avda, Monforte de Lemos, Spain
| | - Gonzalo Jiménez-Osés
- CIC bioGUNE, Basque Research and Technology Alliance (BRTA), Derio, Spain.,lkerbasque, Basque Foundation for Science, Bilbao, Spain
| | - Jesús Jiménez-Barbero
- CIC bioGUNE, Basque Research and Technology Alliance (BRTA), Derio, Spain.,lkerbasque, Basque Foundation for Science, Bilbao, Spain.,Department of Organic Chemistry ll, Faculty of Science & Technology, University of the Basque Country, Leioa, Spain
| | - Ana Ardá
- CIC bioGUNE, Basque Research and Technology Alliance (BRTA), Derio, Spain.,lkerbasque, Basque Foundation for Science, Bilbao, Spain
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5
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Kunetskiy RA, Pazynina GV, Ivanov IA, Bovin NV. Synthesis of blood group A and B (type 2) tetrasaccharides. A strategy with fucosylation at the last stage. Carbohydr Res 2020; 498:108192. [DOI: 10.1016/j.carres.2020.108192] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 12/28/2022]
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6
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Tsutsui M, Sianturi J, Masui S, Tokunaga K, Manabe Y, Fukase K. Efficient Synthesis of Antigenic Trisaccharides ContainingN-Acetylglucosamine: Protection of NHAc as NAc2. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901809] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Masato Tsutsui
- Department of Chemistry; Graduate School of Science; Osaka University; Machikaneyama 1-1, Toyonaka 560-0043 Osaka Japan
| | - Julinton Sianturi
- Department of Chemistry; Graduate School of Science; Osaka University; Machikaneyama 1-1, Toyonaka 560-0043 Osaka Japan
| | - Seiji Masui
- Department of Chemistry; Graduate School of Science; Osaka University; Machikaneyama 1-1, Toyonaka 560-0043 Osaka Japan
| | - Kento Tokunaga
- Department of Chemistry; Graduate School of Science; Osaka University; Machikaneyama 1-1, Toyonaka 560-0043 Osaka Japan
| | - Yoshiyuki Manabe
- Department of Chemistry; Graduate School of Science; Osaka University; Machikaneyama 1-1, Toyonaka 560-0043 Osaka Japan
- Core for Medicine and Science Collaborative Research and Education; Project Research Center for Fundamental Science; Osaka University; Osaka Japan
| | - Koichi Fukase
- Department of Chemistry; Graduate School of Science; Osaka University; Machikaneyama 1-1, Toyonaka 560-0043 Osaka Japan
- Core for Medicine and Science Collaborative Research and Education; Project Research Center for Fundamental Science; Osaka University; Osaka Japan
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7
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Ryzhov IM, Savchenko MS, Pazynina GV, Tsygankova SV, Popova IS, Tyrtysh TV, Bovin NV. Synthesis of N-acetyllactosamine based branched hexasaccharide. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.11.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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8
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Ryzhov IM, Bovin NV. Synthesis of glycans functioning as antigens of the ABO blood group system. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Flügge F, Peters T. Insights into Allosteric Control of Human Blood Group A and B Glycosyltransferases from Dynamic NMR. ChemistryOpen 2019; 8:760-769. [PMID: 31289712 PMCID: PMC6591795 DOI: 10.1002/open.201900116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 05/03/2019] [Indexed: 12/25/2022] Open
Abstract
Human blood group A and B glycosyltransferases (GTA, GTB) are retaining glycosyltransferases, requiring a catalytic mechanism that conserves the anomeric configuration of the hexopyranose moiety of the donor substrate (UDP-GalNAc, UDP-Gal). Previous studies have shown that GTA and GTB cycle through structurally distinct states during catalysis. Here, we link binding and release of substrates, substrate-analogs, and products to transitions between open, semi-closed, and closed states of the enzymes. Methyl TROSY based titration experiments in combination with zz-exchange experiments uncover dramatic changes of binding kinetics associated with allosteric interactions between donor-type and acceptor-type ligands. Taken together, this highlights how allosteric control of on- and off-rates correlates with conformational changes, driving catalysis to completion.
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Affiliation(s)
- Friedemann Flügge
- Institute of Chemistry and MetabolomicsUniversity of Lübeck23562LübeckGermany
| | - Thomas Peters
- Institute of Chemistry and MetabolomicsUniversity of Lübeck23562LübeckGermany
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10
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Daskhan GC, Tran HTT, Meloncelli PJ, Lowary TL, West LJ, Cairo CW. Construction of Multivalent Homo- and Heterofunctional ABO Blood Group Glycoconjugates Using a Trifunctional Linker Strategy. Bioconjug Chem 2018; 29:343-362. [PMID: 29237123 DOI: 10.1021/acs.bioconjchem.7b00679] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The design and synthesis of multivalent ligands displaying complex oligosaccharides is necessary for the development of therapeutics, diagnostics, and research tools. Here, we report an efficient conjugation strategy to prepare complex glycoconjugates with 4 copies of 1 or 2 separate glycan epitopes, providing 4-8 carbohydrate residues on a tetravalent poly(ethylene glycol) scaffold. This strategy provides complex glycoconjugates that approach the size of glycoproteins (15-18 kDa) while remaining well-defined. The synthetic strategy makes use of three orthogonal functional groups, including a reactive N-hydroxysuccinimide (NHS)-ester moiety on the linker to install the first carbohydrate epitope via reaction with an amine. A masked amine functionality on the linker is revealed after the removal of a fluorenylmethyloxycarbonyl (Fmoc)-protecting group, allowing the attachment to the NHS-activated poly(ethylene glycol) (PEG) scaffold. An azide group in the linker was then used to incorporate the second carbohydrate epitope via catalyzed alkyne-azide cycloaddition. Using a known tetravalent PEG scaffold (PDI, 1.025), we prepared homofunctional glycoconjugates that display four copies of lactose and the A-type II or the B-type II human blood group antigens. Using our trifunctional linker, we expanded this strategy to produce heterofunctional conjugates with four copies of two separate glycan epitopes. These heterofunctional conjugates included Neu5Ac, 3'-sialyllactose, or 6'-sialyllactose as a second antigen. Using an alternative strategy, we generated heterofunctional conjugates with three copies of the glycan epitope and one fluorescent group (on average) using a sequential dual-amine coupling strategy. These conjugation strategies should be easily generalized for conjugation of other complex glycans. We demonstrate that the glycan epitopes of heterofunctional conjugates engage and cluster target B-cell receptors and CD22 receptors on B cells, supporting the application of these reagents for investigating cellular response to carbohydrate antigens of the ABO blood group system.
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Affiliation(s)
- Gour Chand Daskhan
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
| | - Hanh-Thuc Ton Tran
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
| | - Peter J Meloncelli
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
| | - Todd L Lowary
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada.,Canadian National Transplant Research Program, University of Alberta , Edmonton, Alberta T6G 2E1, Canada
| | - Lori J West
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada.,Department of Pediatrics, Surgery, Medical Microbiology and Immunology, and Laboratory Medicine and Pathology, Alberta Transplant Institute, University of Alberta Edmonton, Alberta T6G 2E1, Canada.,Canadian National Transplant Research Program, University of Alberta , Edmonton, Alberta T6G 2E1, Canada
| | - Christopher W Cairo
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta , Edmonton, Alberta T6G 2G2, Canada.,Canadian National Transplant Research Program, University of Alberta , Edmonton, Alberta T6G 2E1, Canada
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11
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Tyrtysh TV, Korchagina EY, Ryzhov IM, Bovin NV. Gram scale synthesis of A (type 2) and B (type 2) blood group tetrasaccharides through 1,6-anhydro-N-acetyl-β-D-glucosamine. Carbohydr Res 2017; 449:65-84. [DOI: 10.1016/j.carres.2017.06.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 06/21/2017] [Accepted: 06/24/2017] [Indexed: 11/26/2022]
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12
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Fiege B, Leuthold M, Parra F, Dalton KP, Meloncelli PJ, Lowary TL, Peters T. Epitope mapping of histo blood group antigens bound to norovirus VLPs using STD NMR experiments reveals fine details of molecular recognition. Glycoconj J 2017; 34:679-689. [PMID: 28823097 DOI: 10.1007/s10719-017-9792-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 08/04/2017] [Accepted: 08/08/2017] [Indexed: 01/06/2023]
Abstract
Attachment of human noroviruses to histo blood group antigens (HBGAs) is thought to be critical for the infection process. Therefore, we have determined binding epitopes of synthetic type 1 to 6 blood group A- and B-tetrasaccharides binding to GII.4 human Norovirus virus like particles (VLPs) using STD NMR experiments. So far, little information is available from crystal structure analysis studies on the interactions of the reducing-end sugars with the protruding domain (P-domain) of the viral coat protein VP1. Here, we show that the reducing-end sugars make notable contacts with the protein surface. The type of glycosidic linkage, and the identity of the sugar at the reducing end modulate HBGA recognition. Most strikingly, type 2 structures yield only very poor saturation transfer indicating impeded binding. This observation is in accordance with previous mass spectrometry based affinity measurements, and can be understood based on recent crystal structure data of a complex of highly homologous GII.4 P-dimers with H-type 2 trisaccharide where the N-acetyl group of the reducing N-acetyl glucosamine residue points towards a loop comprising amino acids Q390 to H395. We suggest that in our case, binding of type 2 A- and B-tetrasaccharides leads to steric conflicts with this loop. In order to identify factors determining L-Fuc recognition, we also synthesized GII.4 VLPs with point mutations D391A and H395A. Prior studies had suggested that these residues, located in a second shell around the L-Fuc binding site, assist L-Fuc binding. STD NMR experiments with L-Fuc and B-trisaccharide in the presence of wild type and mutant VLPs yield virtually identical binding epitopes suggesting that these two mutations do not significantly alter HBGA recognition. Our study emphasizes that recognition of α-(1→2)-linked L-Fuc residues is a conserved feature of GII.4 noroviruses. However, structural variation of the HBGA core structures clearly modulates molecular recognition depending on the genotype.
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Affiliation(s)
- Brigitte Fiege
- Center of Structural and Cell Biology in Medicine, Institute of Chemistry and Metabolomics, University of Luebeck, Ratzeburger Allee 160, 23562, Luebeck, Germany
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Mila Leuthold
- Center of Structural and Cell Biology in Medicine, Institute of Chemistry and Metabolomics, University of Luebeck, Ratzeburger Allee 160, 23562, Luebeck, Germany
- Molecular Virology, Heidelberg University Hospital, Im Neuenheimer Feld 345, 69120, Heidelberg, Germany
| | - Francisco Parra
- Instituto Universitario de Biotecnología de Asturias, Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Kevin P Dalton
- Instituto Universitario de Biotecnología de Asturias, Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Peter J Meloncelli
- Alberta Glycomics Centre and Department of Chemistry, Gunning-Lemieux Chemistry Centre, The University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB, T6G G2, Canada
| | - Todd L Lowary
- Alberta Glycomics Centre and Department of Chemistry, Gunning-Lemieux Chemistry Centre, The University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB, T6G G2, Canada
| | - Thomas Peters
- Center of Structural and Cell Biology in Medicine, Institute of Chemistry and Metabolomics, University of Luebeck, Ratzeburger Allee 160, 23562, Luebeck, Germany.
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13
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Yan S, Zhao C, Ren Q, Xie X, Yang F, Du Y. Synthesis of trisaccharide-coated magnetic nanoparticles for antibody removal. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Singh R, Bezuidenhout LW, Jemere A, Wang Z, Brett M, Harrison DJ. Engineering matrix-free laser desorption ionization mass spectrometry using glancing angle deposition films. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2017; 31:631-638. [PMID: 28075041 DOI: 10.1002/rcm.7826] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 01/08/2017] [Indexed: 06/06/2023]
Abstract
RATIONALE Thin, nanoporous films fabricated using Glancing Angle Deposition (GLAD) technology are demonstrated for solid matrix laser desorption/ionization mass spectrometry (SMALDI-MS). GLAD allows facile engineering of nanoporosity, film thickness, post alignment, and material composition, as demonstrated here by the fabrication of Co-GLAD and Si-GLAD films for SMALDI, and by exploration of the SMALDI performance as a function of thickness, post density, and angle of the post relative to surface normal. METHODS GLAD films were prepared by electron beam evaporation onto silicon substrates, using steep angles of incidence for the vacuum deposition, with computer controlled substrate rotation. LDI from the GLAD films was evaluated using an MDS-Sciex time-of-flight (TOF) MALDI mass spectrometer. RESULTS Co-GLAD films give a limit of quantitation of 6 fmol for complex carbohydrate derivatives, and slanted-post Si-GLAD films show up to three times higher sensitivity than vertical post structures. Reproducibility of both Si and Co films is much higher than conventional MALDI methods for m/z below at least 2100 Da. Both reproducibility and detection limits are comparable to or better than other nano-structured materials. Co-GLAD films are significantly better in performance than Co powders or Co thin films on silicon substrates previously evaluated. CONCLUSIONS The flexibility of GLAD for thin film fabrication of LDI materials is demonstrated by the range of nanoporous materials that can be grown, and the fine control over structural conformation, thickness and porosity. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Reshma Singh
- Department of Chemistry, University of Alberta, Edmonton, AB, Canada, T6G 2G2
| | - Louis W Bezuidenhout
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, Canada, T6G 2V4
| | - Abebaw Jemere
- National Institute for Nanotechnology, National Research Council Canada, Edmonton, AB, Canada, T6G 2M9
| | - Zhen Wang
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, Canada, T6G 2V4
| | - Michael Brett
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, Canada, T6G 2V4
- National Institute for Nanotechnology, National Research Council Canada, Edmonton, AB, Canada, T6G 2M9
| | - D Jed Harrison
- Department of Chemistry, University of Alberta, Edmonton, AB, Canada, T6G 2G2
- National Institute for Nanotechnology, National Research Council Canada, Edmonton, AB, Canada, T6G 2M9
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15
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Ye J, Liu XW, Peng P, Yi W, Chen X, Wang F, Cao H. Diversity-Oriented Enzymatic Modular Assembly of ABO Histo-blood Group Antigens. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02755] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jinfeng Ye
- National
Glycoengineering Research Center, Shandong Provincial Key Laboratory
of Carbohydrate Chemistry and Glycobiology, Shandong University, Jinan 250100, China
| | - Xian-wei Liu
- National
Glycoengineering Research Center, Shandong Provincial Key Laboratory
of Carbohydrate Chemistry and Glycobiology, Shandong University, Jinan 250100, China
| | - Peng Peng
- National
Glycoengineering Research Center, Shandong Provincial Key Laboratory
of Carbohydrate Chemistry and Glycobiology, Shandong University, Jinan 250100, China
| | - Wen Yi
- Institute
of Biochemistry, College of Life Science, Zhejiang University, Hangzhou 310058, China
| | - Xi Chen
- Department
of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Fengshan Wang
- National
Glycoengineering Research Center, Shandong Provincial Key Laboratory
of Carbohydrate Chemistry and Glycobiology, Shandong University, Jinan 250100, China
- Key
Laboratory of Chemical Biology, Ministry of Education, School of Pharmaceutical
Sciences, Shandong University, Jinan 250012, China
| | - Hongzhi Cao
- National
Glycoengineering Research Center, Shandong Provincial Key Laboratory
of Carbohydrate Chemistry and Glycobiology, Shandong University, Jinan 250100, China
- State Key
Laboratory of Microbiology, Shandong University, Jinan 250100, China
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16
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Dhawane AN, Diez-Valcarce M, Gurale BP, Dinh H, Vinjé J, Iyer SS. Synthesis and Evaluation of Biotinylated Bivalent HistoBlood Group Antigens for Capturing Human Noroviruses. Bioconjug Chem 2016; 27:1822-9. [PMID: 27383368 DOI: 10.1021/acs.bioconjchem.6b00226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A panel of biotinylated bivalent H-type glycans that have been reported as binding ligands for human noroviruses were synthesized using a modular synthetic strategy. These glycoconjugates were attached to streptavidin-coated magnetic beads and used to recover human norovirus from fecal samples using a magnetic bead-based assay. The biotinylated bivalent glycans synthesized for this study exhibited similar or better capturing ability when compared to commercial biotinylated glycopolymers.
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Affiliation(s)
- Abasaheb N Dhawane
- 788 Petit Science Center, Department of Chemistry, Georgia State University , Atlanta, Georgia 30302-4098, United States
| | - Marta Diez-Valcarce
- Division of Viral Diseases, Centers for Disease Control and Prevention , 1600 Clifton Road, Atlanta, Georgia 30329, United States
| | - Bharat P Gurale
- 788 Petit Science Center, Department of Chemistry, Georgia State University , Atlanta, Georgia 30302-4098, United States
| | - Hieu Dinh
- 788 Petit Science Center, Department of Chemistry, Georgia State University , Atlanta, Georgia 30302-4098, United States
| | - Jan Vinjé
- Division of Viral Diseases, Centers for Disease Control and Prevention , 1600 Clifton Road, Atlanta, Georgia 30329, United States
| | - Suri S Iyer
- 788 Petit Science Center, Department of Chemistry, Georgia State University , Atlanta, Georgia 30302-4098, United States
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17
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ABO blood type correlates with survival on prostate cancer vaccine therapy. Oncotarget 2016; 6:32244-56. [PMID: 26338967 PMCID: PMC4741674 DOI: 10.18632/oncotarget.4993] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Accepted: 08/04/2015] [Indexed: 02/05/2023] Open
Abstract
Immunotherapies for cancer are transforming patient care, but clinical responses vary considerably from patient to patient. Simple, inexpensive strategies to target treatment to likely responders could substantially improve efficacy while simultaneously reducing health care costs, but identification of reliable biomarkers has proven challenging. Previously, we found that pre-treatment serum IgM to blood group A (BG-A) correlated with survival for patients treated with PROSTVAC-VF, a therapeutic cancer vaccine in phase III clinical trials for the treatment of prostate cancer. These results suggested that ABO blood type might influence efficacy. Unfortunately, blood types were not available in the clinical records for all but 8 patients and insufficient amounts of sera were left for standard blood typing methods. To test the hypothesis, therefore, we developed a new glycan microarray-based method for determining ABO blood type. The method requires only 4 μL of serum, provides 97% accuracy, and allows simultaneous profiling of many other serum anti-glycan antibodies. After validation with 220 healthy subjects of known blood type, the method was then applied to 74 PROSTVAC-VF patients and 37 control patients from a phase II trial. In this retrospective study, we found that type B and O PROSTVAC-VF patients demonstrated markedly improved clinical outcomes relative to A and AB patients, including longer median survival, longer median survival relative to Halabi predicted survival, and improved overall survival via Kaplan-Meier survival analysis (p = 0.006). Consequently, blood type may provide an inexpensive screen to pre-select patients likely to benefit from PROSTVAC-VF therapy.
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18
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Ryzhov IM, Korchagina EY, Popova IS, Tyrtysh TV, Paramonov AS, Bovin NV. Block synthesis of A (type 2) and B (type 2) tetrasaccharides related to the human ABO blood group system. Carbohydr Res 2016; 430:59-71. [DOI: 10.1016/j.carres.2016.04.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 04/30/2016] [Indexed: 10/21/2022]
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19
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Jeyakanthan M, Meloncelli PJ, Zou L, Lowary TL, Larsen I, Maier S, Tao K, Rusch J, Chinnock R, Shaw N, Burch M, Beddows K, Addonizio L, Zuckerman W, Pahl E, Rutledge J, Kanter KR, Cairo CW, Buriak JM, Ross D, Rebeyka I, West LJ. ABH-Glycan Microarray Characterizes ABO Subtype Antibodies: Fine Specificity of Immune Tolerance After ABO-Incompatible Transplantation. Am J Transplant 2016; 16:1548-58. [PMID: 26602221 DOI: 10.1111/ajt.13625] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 10/18/2015] [Accepted: 11/07/2015] [Indexed: 01/25/2023]
Abstract
Organ transplantation from ABO blood group-incompatible (ABOi) donors requires accurate detection, effective removal and subsequent surveillance of antidonor antibodies. Because ABH antigen subtypes are expressed differently in various cells and organs, measurement of antibodies specific for the antigen subtypes in the graft is essential. Erythrocyte agglutination, the century-old assay used clinically, does not discriminate subtype-specific ABO antibodies and provides limited information on antibody isotypes. We designed and created an ABO-glycan microarray and demonstrated the precise assessment of both the presence and, importantly, the absence of donor-specific antibodies in an international study of pediatric heart transplant patients. Specific IgM, IgG, and IgA isotype antibodies to nonself ABH subtypes were detected in control participants and recipients of ABO-compatible transplants. Conversely, in children who received ABOi transplants, antibodies specific for A subtype II and/or B subtype II antigens-the only ABH antigen subtypes expressed in heart tissue-were absent, demonstrating the fine specificity of B cell tolerance to donor/graft blood group antigens. In contrast to the hemagglutination assay, the ABO-glycan microarray allows detailed characterization of donor-specific antibodies necessary for effective transplant management, representing a major step forward in precise ABO antibody detection.
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Affiliation(s)
- M Jeyakanthan
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - P J Meloncelli
- Alberta Glycomics Centre and Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - L Zou
- Alberta Glycomics Centre and Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - T L Lowary
- Alberta Glycomics Centre and Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - I Larsen
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - S Maier
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - K Tao
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - J Rusch
- Pediatrtic Cardiology, Loma Linda University Medical Center, Loma Linda, CA
| | - R Chinnock
- Pediatrtic Cardiology, Loma Linda University Medical Center, Loma Linda, CA
| | - N Shaw
- Pediatric Cardiology, Great Ormond Street Hospital for Sick Children, London, UK
| | - M Burch
- Pediatric Cardiology, Great Ormond Street Hospital for Sick Children, London, UK
| | - K Beddows
- Division of Pediatric Cardiology, Columbia University, New York, NY
| | - L Addonizio
- Division of Pediatric Cardiology, Columbia University, New York, NY
| | - W Zuckerman
- Division of Pediatric Cardiology, Columbia University, New York, NY
| | - E Pahl
- Pediatric Cardiology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL
| | - J Rutledge
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - K R Kanter
- Department of Surgery, Emory University School of Medicine, Atlanta, GA
| | - C W Cairo
- Alberta Glycomics Centre and Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - J M Buriak
- National Institute for Nanotechnology, University of Alberta, Edmonton, Alberta, Canada
| | - D Ross
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada.,Alberta Transplant Institute, University of Alberta, Edmonton, Alberta, Canada
| | - I Rebeyka
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada.,Alberta Transplant Institute, University of Alberta, Edmonton, Alberta, Canada
| | - L J West
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada.,Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada.,Alberta Transplant Institute, University of Alberta, Edmonton, Alberta, Canada.,Department of Medical Microbiology & Immunology, University of Alberta, Edmonton, Alberta, Canada
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20
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Slaney AM, Dijke IE, Jeyakanthan M, Li C, Zou L, Plaza-Alexander P, Meloncelli PJ, Bau JA, Allan LL, Lowary TL, West LJ, Cairo CW, Buriak JM. Conjugation of A and B Blood Group Structures to Silica Microparticles for the Detection of Antigen-Specific B Cells. Bioconjug Chem 2016; 27:705-15. [PMID: 26816334 DOI: 10.1021/acs.bioconjchem.5b00672] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Silica microparticles were functionalized with A and B blood group carbohydrate antigens (A type I, A type II, B type I, and B type II) to enable the detection and monitoring of ABO antigen-specific B cells. Microparticles were prepared via the Stöber synthesis, labeled with an Alexafluor fluorescent dye, and characterized via TEM and fluorescence microscopy. The silica microparticles were functionalized with (3-aminopropyl)trimethoxysilane (APTMS), followed by the use of an established fluorenylmethyloxycarbonyl (Fmoc)-protected PEG-based linker. The terminal Fmoc moiety of the PEG-based linker was then deprotected, yielding free amino groups, to which the A and B antigens were coupled. The carbohydrate antigens were synthesized with a p-nitrophenol ester to enable conjugation to the functionalized silica microparticles via an amide bond. The number of free amine groups available for coupling for a given mass of PEG-functionalized silica microparticles was quantified via reaction with Fmoc-glycine. The antigen-functionalized microparticles were then evaluated for their specificity in binding to A and B antigen-reactive B-cells via flow cytometry, and for blocking of naturally occurring antibodies in human serum. Selective binding of the functionalized microparticles to blood group-reactive B cells was observed by flow cytometry and fluorescence microscopy. The modular approach outlined here is applicable to the preparation of silica microparticles containing any carbohydrate antigen and alternative fluorophores or labels. This approach therefore comprises a novel, general platform for screening B cell populations for binding to carbohydrate antigens, including, in this case, the human A and B blood group antigens.
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Affiliation(s)
- Anne M Slaney
- National Institute for Nanotechnology (NINT), National Research Council , 11421 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2M9
| | | | | | | | | | | | | | - Jeremy A Bau
- National Institute for Nanotechnology (NINT), National Research Council , 11421 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2M9
| | - Lenka L Allan
- Pathology and Laboratory Medicine, Faculty of Medicine, Vancouver General Hospital, JP Pavilion North, University of British Columbia , 855 West 12th Avenue, Vancouver, British Columbia, Canada V5Z 1M9
| | | | | | | | - Jillian M Buriak
- National Institute for Nanotechnology (NINT), National Research Council , 11421 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2M9
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21
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Gildersleeve JC, Wright WS. Diverse molecular recognition properties of blood group A binding monoclonal antibodies. Glycobiology 2016; 26:443-8. [PMID: 26755806 DOI: 10.1093/glycob/cwv171] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 12/24/2015] [Indexed: 12/23/2022] Open
Abstract
Information about specificity and affinity is critical for use of carbohydrate-binding antibodies. Herein, we evaluated eight monoclonal antibodies to the blood group A (BG-A) antigen. Antibodies 87-G, 9A, HE-10, HE-24, HE-193, HE-195, T36 and Z2A were profiled on a glycan microarray to assess specificity, relative affinity and the influence of glycan density on recognition. Our studies highlight several noteworthy recognition properties. First, most antibodies bound GalNAcα1-3Gal and the BG-A trisaccharide nearly as well as larger BG-A oligosaccharides. Second, several antibodies only bound the BG-A trisaccharide when displayed on certain glycan chains. These first two points indicate that the carrier glycan chains primarily influence selectivity, rather than binding strength. Third, binding of some antibodies was highly dependent on glycan density, illustrating the importance of glycan presentation for recognition. Fourth, some antibodies recognized the tumor-associated Tn antigen, and one antibody only bound the variant composed of a GalNAc-alpha-linked to a serine residue. Collectively, these results provide new insights into the recognition properties of anti-BG-A antibodies.
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Affiliation(s)
- Jeffrey C Gildersleeve
- Chemical Biology Laboratory, National Cancer Institute, NIH, 376 Boyles St., Frederick, MD 21702, USA
| | - Whitney Shea Wright
- Chemical Biology Laboratory, National Cancer Institute, NIH, 376 Boyles St., Frederick, MD 21702, USA
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22
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An expeditious synthesis of blood-group antigens, ABO histo-blood group type II antigens and xenoantigen oligosaccharides with amino type spacer−arms. Glycoconj J 2015; 33:63-78. [DOI: 10.1007/s10719-015-9635-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 10/30/2015] [Accepted: 11/02/2015] [Indexed: 10/22/2022]
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23
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Jeyakanthan M, Tao K, Zou L, Meloncelli PJ, Lowary TL, Suzuki K, Boland D, Larsen I, Burch M, Shaw N, Beddows K, Addonizio L, Zuckerman W, Afzali B, Kim DH, Mengel M, Shapiro AMJ, West LJ. Chemical Basis for Qualitative and Quantitative Differences Between ABO Blood Groups and Subgroups: Implications for Organ Transplantation. Am J Transplant 2015; 15:2602-15. [PMID: 26014598 DOI: 10.1111/ajt.13328] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 03/01/2015] [Accepted: 03/20/2015] [Indexed: 01/25/2023]
Abstract
Blood group ABH(O) carbohydrate antigens are carried by precursor structures denoted type I-IV chains, creating unique antigen epitopes that may differ in expression between circulating erythrocytes and vascular endothelial cells. Characterization of such differences is invaluable in many clinical settings including transplantation. Monoclonal antibodies were generated and epitope specificities were characterized against chemically synthesized type I-IV ABH and related glycans. Antigen expression was detected on endomyocardial biopsies (n = 50) and spleen (n = 11) by immunohistochemical staining and on erythrocytes by flow cytometry. On vascular endothelial cells of heart and spleen, only type II-based ABH antigens were expressed; type III/IV structures were not detected. Type II-based ABH were expressed on erythrocytes of all blood groups. Group A1 and A2 erythrocytes additionally expressed type III/IV precursors, whereas group B and O erythrocytes did not. Intensity of A/B antigen expression differed among group A1 , A2 , A1 B, A2 B and B erythrocytes. On group A2 erythrocytes, type III H structures were largely un-glycosylated with the terminal "A" sugar α-GalNAc. Together, these studies define qualitative and quantitative differences in ABH antigen expression between erythrocytes and vascular tissues. These expression profiles have important implications that must be considered in clinical settings of ABO-incompatible transplantation when interpreting anti-ABO antibodies measured by hemagglutination assays with reagent erythrocytes.
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Affiliation(s)
- M Jeyakanthan
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada.,Department of Surgery, University of Alberta, Edmonton, Alberta, Canada.,Canadian National Transplant Research Program, Edmonton, Alberta, Canada.,Alberta Transplant Institute, Edmonton, Alberta, Canada
| | - K Tao
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada.,Alberta Transplant Institute, Edmonton, Alberta, Canada
| | - L Zou
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - P J Meloncelli
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - T L Lowary
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - K Suzuki
- Alberta Diabetes Institute Molecular Biology Core, Faculty of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - D Boland
- Southern Alberta Cancer Research Institute Antibody Services, Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - I Larsen
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada.,Alberta Transplant Institute, Edmonton, Alberta, Canada
| | - M Burch
- Pediatric Cardiology, Great Ormond Street Hospital, London, United Kingdom
| | - N Shaw
- Pediatric Cardiology, Great Ormond Street Hospital, London, United Kingdom
| | - K Beddows
- Division of Pediatric Cardiology, Columbia University, New York
| | - L Addonizio
- Division of Pediatric Cardiology, Columbia University, New York
| | - W Zuckerman
- Division of Pediatric Cardiology, Columbia University, New York
| | - B Afzali
- Department of Laboratory Medicine and Pathology, Edmonton, Alberta, Canada
| | - D H Kim
- Alberta Transplant Institute, Edmonton, Alberta, Canada.,Division of Medicine, Department of Cardiology, University of Alberta, University of Alberta, Edmonton, Alberta, Canada
| | - M Mengel
- Canadian National Transplant Research Program, Edmonton, Alberta, Canada.,Alberta Transplant Institute, Edmonton, Alberta, Canada.,Department of Laboratory Medicine and Pathology, Edmonton, Alberta, Canada
| | - A M J Shapiro
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada.,Canadian National Transplant Research Program, Edmonton, Alberta, Canada.,Alberta Transplant Institute, Edmonton, Alberta, Canada
| | - L J West
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada.,Department of Surgery, University of Alberta, Edmonton, Alberta, Canada.,Canadian National Transplant Research Program, Edmonton, Alberta, Canada.,Alberta Transplant Institute, Edmonton, Alberta, Canada.,Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada
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24
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Abstract
UNLABELLED Tulane virus (TV), the prototype of the Recovirus genus in the calicivirus family, was isolated from the stools of rhesus monkeys and can be cultivated in vitro in monkey kidney cells. TV is genetically closely related to the genus Norovirus and recognizes the histo-blood group antigens (HBGAs), similarly to human noroviruses (NoVs), making it a valuable surrogate for human NoVs. However, the precise structures of HBGAs recognized by TV remain elusive. In this study, we performed binding and blocking experiments on TV with extended HBGA types and showed that, while TV binds all four types (types 1 to 4) of the B antigens, it recognizes only the A type 3 antigen among four types of A antigens tested. The requirements for HBGAs in TV replication were demonstrated by blocking of TV replication in cell culture using the A type 3/4 and B saliva samples. Similar results were also observed in oligosaccharide-based blocking assays. Importantly, the previously reported, unexplained increase in TV replication by oligosaccharide in cell-based blocking assays has been clarified, which will facilitate the application of TV as a surrogate for human NoVs. IMPORTANCE Our understanding of the role of HBGAs in NoV infection has been significantly advanced in the past decade, but direct evidence for HBGAs as receptors for human NoVs remains lacking due to a lack of a cell culture method. TV recognizes HBGAs and can replicate in vitro, providing a valuable surrogate for human NoVs. However, TV binds to some but not all saliva samples from A-positive individuals, and an unexplained observation of synthetic oligosaccharide blocking of TV binding has been reported. These issues have been resolved in this study.
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25
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Han L, Kitova EN, Tan M, Jiang X, Pluvinage B, Boraston AB, Klassen JS. Affinities of human histo-blood group antigens for norovirus capsid protein complexes. Glycobiology 2014; 25:170-80. [PMID: 25395406 DOI: 10.1093/glycob/cwu100] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The binding profiles of many human noroviruses (huNoVs) for human histo-blood group antigens have been characterized. However, quantitative-binding data for these important virus-host interactions are lacking. Here, we report on the intrinsic (per binding site) affinities of HBGA oligosaccharides for the huNoV VA387 virus-like particles (VLPs) and the associated subviral P particles measured using electrospray ionization mass spectrometry. The affinities of 13 HBGA oligosaccharides, containing A, B and H epitopes, with variable sizes (disaccharide to tetrasaccharide) and different precursor chain types (types 1, 2, 3, 5 and 6), were measured for the P particle, while the affinities of the A and B trisaccharides and A and B type 6 tetrasaccharides for the VLP were determined. The intrinsic affinities of the HBGA oligosaccharides for the P particle range from 500 to 2300 M(-1), while those of the A and B trisaccharides and the A and B type 6 tetrasaccharides for the VLP range from 1000 to 4000 M(-1). Comparison of these binding data with those measured previously for the corresponding P dimer reveals that the HBGA oligosaccharides tested exhibit similar intrinsic affinities for the P dimer and P particle. The intrinsic affinities for the VLP are consistently higher than those measured for the P particle, but within a factor of three. While the cause of the subtle differences in HBGA oligosaccharide affinities for the P dimer and P particle and those for the VLP remains unknown, the present data support the use of P dimers or P particles as surrogates to the VLP for huNoV-receptor-binding studies.
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Affiliation(s)
- Ling Han
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, AB, Canada T6G 2G2
| | - Elena N Kitova
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, AB, Canada T6G 2G2
| | - Ming Tan
- Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Xi Jiang
- Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Benjamin Pluvinage
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada V8W 3P6
| | - Alisdair B Boraston
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada V8W 3P6
| | - John S Klassen
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, AB, Canada T6G 2G2
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26
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Hara A, Imamura A, Ando H, Ishida H, Kiso M. A new chemical approach to human ABO histo-blood group type 2 antigens. Molecules 2013; 19:414-37. [PMID: 24384923 PMCID: PMC6270767 DOI: 10.3390/molecules19010414] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 12/24/2013] [Accepted: 12/25/2013] [Indexed: 02/08/2023] Open
Abstract
A new chemical approach to synthesizing human ABO histo-blood type 2 antigenic determinants was developed. N-Phthaloyl-protected lactosaminyl thioglycoside derived from lactulose via the Heyns rearrangement was employed to obtain a type 2 core disaccharide. Use of this scheme lowered the overall number of reaction steps. Stereoselective construction of the α-galactosaminide/galactoside found in A- and B-antigens, respectively, was achieved by using a unique di-tert-butylsilylene-directed α-glycosylation method. The proposed synthetic scheme provides an alternative to existing procedures for preparing ABO blood group antigens.
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Affiliation(s)
- Atsushi Hara
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
| | - Akihiro Imamura
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
| | - Hiromune Ando
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
| | - Hideharu Ishida
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
| | - Makoto Kiso
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
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27
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Han L, Kitov PI, Kitova EN, Tan M, Wang L, Xia M, Jiang X, Klassen JS. Affinities of recombinant norovirus P dimers for human blood group antigens. Glycobiology 2013; 23:276-85. [PMID: 23118206 PMCID: PMC3555502 DOI: 10.1093/glycob/cws141] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Noroviruses (NoVs), the major cause of viral acute gastroenteritis, recognize histo-blood group antigens (HBGAs) as receptors or attachment factors. To gain a deeper understanding of the interplay between NoVs and their hosts, the affinities of recombinant P dimers (P₂'s) of a GII.4 NoV (VA387) to a library of 41 soluble analogs of HBGAs were measured using the direct electrospray ionization mass spectrometry assay. The HBGAs contained the A, B, H and Lewis epitopes, with variable sizes (2-6 residues) and different types (1-6). The results reveal that the P₂'s exhibit a broad specificity for the HBGAs and bind to all of the oligosaccharides tested. Overall, the affinities are relatively low, ranging from 400 to 3000 M⁻¹ and are influenced by the chain type: 3 > 1 ≈ 2 ≈ 4 ≈ 5 ≈ 6 for H antigens; 6 > 1 ≈ 3 ≈ 4 ≈ 5 > 2 for A antigens; 3 > 1 ≈ 4 ≈ 5 ≈ 6 > 2 for B antigens, but not by chain length. The highest-affinity ligands are B type 3 (3000 ± 300 M⁻¹) and A type 6 (2350 ± 60 M⁻¹). While the higher affinity to the type 3 H antigen was previously observed, preferential binding to the types 6 and 3 antigens with A and B epitopes, respectively, has not been previously reported. A truncated P domain dimer (lacking the C-terminal arginine cluster) exhibits similar binding. The central-binding motifs in the HBGAs were identified by molecular-docking simulations.
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Affiliation(s)
- Ling Han
- Department of Chemistry, Alberta Glycomics Centre, University of Alberta, Edmonton, AB, CanadaT6G 2G2
| | - Pavel I Kitov
- Department of Chemistry, Alberta Glycomics Centre, University of Alberta, Edmonton, AB, CanadaT6G 2G2
| | - Elena N Kitova
- Department of Chemistry, Alberta Glycomics Centre, University of Alberta, Edmonton, AB, CanadaT6G 2G2
| | - Ming Tan
- Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Leyi Wang
- Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Ming Xia
- Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Xi Jiang
- Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - John S Klassen
- Department of Chemistry, Alberta Glycomics Centre, University of Alberta, Edmonton, AB, CanadaT6G 2G2
- To whom correspondence should be addressed: Tel: +1-780-492-3501; Fax: +1-780-492-8231; e-mail:
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Lindberg L, Liu J, Gaunitz S, Nilsson A, Johansson T, Karlsson NG, Holgersson J. Mucin-type fusion proteins with blood group A or B determinants on defined O-glycan core chains produced in glycoengineered Chinese hamster ovary cells and their use as immunoaffinity matrices. Glycobiology 2013; 23:720-35. [DOI: 10.1093/glycob/cwt011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Block synthesis of A tetrasaccharides (types 1, 3, and 4) related to the human ABO blood group system. Carbohydr Res 2012; 351:17-25. [DOI: 10.1016/j.carres.2011.12.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 12/13/2011] [Accepted: 12/15/2011] [Indexed: 11/21/2022]
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Higgins MA, Ficko-Blean E, Meloncelli PJ, Lowary TL, Boraston AB. The overall architecture and receptor binding of pneumococcal carbohydrate-antigen-hydrolyzing enzymes. J Mol Biol 2011; 411:1017-36. [PMID: 21767550 DOI: 10.1016/j.jmb.2011.06.035] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Revised: 06/16/2011] [Accepted: 06/20/2011] [Indexed: 11/19/2022]
Abstract
The TIGR4 and SP3-BS71 strains of Streptococcus pneumoniae each produce family 98 glycoside hydrolases, called Sp4GH98 and Sp3GH98, respectively, which have different modular architectures and substrate specificities. Sp4GH98 degrades the Lewis(Y) antigen and possesses three C-terminal family 47 carbohydrate-binding modules (CBMs) that bind to this substrate. Sp3GH98 degrades the blood group A/B antigens and has two N-terminal family 51 CBMs that are of unknown function. Here, we examine the complex carbohydrate-binding specificity of the family 51 CBMs from Sp3GH98 (referred to as CBM51-1 and CBM51-2), the structural basis of this interaction, and the overall solution conformations of both Sp3GH98 and Sp4GH98, which are shown to be fully secreted proteins. Through glycan microarray binding analysis and isothermal titration calorimetry, CBM51-1 is found to bind specifically to the blood group A/B antigens. However, due to a series of relatively small structural rearrangements that were revealed in structures determined by X-ray crystallography, CBM51-2 appears to be incapable of binding carbohydrates. Analysis of small-angle X-ray scattering data in combination with the available high-resolution X-ray crystal structures of the Sp3GH98 and Sp4GH98 catalytic modules and their CBMs yielded models of the biological solution structures of the full-length enzymes. These studies reveal the complex architectures of the two enzymes and suggest that carbohydrate recognition by the CBMs and the activity of the catalytic modules are not directly coupled.
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Affiliation(s)
- Melanie A Higgins
- Biochemistry and Microbiology, University of Victoria, PO Box 3055 STN CSC, Victoria, BC, Canada V8W 3P6
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Meloncelli PJ, West LJ, Lowary TL. Synthesis and NMR studies on the ABO histo-blood group antigens: synthesis of type III and IV structures and NMR characterization of type I-VI antigens. Carbohydr Res 2011; 346:1406-26. [PMID: 21531397 DOI: 10.1016/j.carres.2011.03.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2011] [Revised: 02/28/2011] [Accepted: 03/03/2011] [Indexed: 10/18/2022]
Abstract
The ABO histo-blood group antigens are best known for their important roles in solid organ and bone marrow transplantation as well as transfusion medicine. Here we report the synthesis of the ABO type III and IV antigens with a 7-octen-1-yl aglycone. Also described is an NMR study of the ABO type I to VI antigens, which were carried out to probe differences in overall conformation of the molecules. These NMR investigations showed very little difference in the (1)H chemical shifts, as well as (1)H-(1)H coupling constants, across all compounds, suggesting that these ABO subtypes adopt nearly identical conformations in solution.
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Affiliation(s)
- Peter J Meloncelli
- Department of Chemistry and Alberta Ingenuity Centre for Carbohydrate Science, Gunning-Lemieux Chemistry Centre, University of Alberta, Edmonton, AB, Canada T6G 2G2
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