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Gupta A, Yadav K, Yadav A, Ahmad R, Srivastava A, Kumar D, Khan MA, Dwivedi UN. Mannose-specific plant and microbial lectins as antiviral agents: A review. Glycoconj J 2024; 41:1-33. [PMID: 38244136 DOI: 10.1007/s10719-023-10142-7] [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: 09/02/2023] [Revised: 10/19/2023] [Accepted: 12/06/2023] [Indexed: 01/22/2024]
Abstract
Lectins are non-immunological carbohydrate-binding proteins classified on the basis of their structure, origin, and sugar specificity. The binding specificity of such proteins with the surface glycan moiety determines their activity and clinical applications. Thus, lectins hold great potential as diagnostic and drug discovery agents and as novel biopharmaceutical products. In recent years, significant advancements have been made in understanding plant and microbial lectins as therapeutic agents against various viral diseases. Among them, mannose-specific lectins have being proven as promising antiviral agents against a variety of viruses, such as HIV, Influenza, Herpes, Ebola, Hepatitis, Severe Acute Respiratory Syndrome Coronavirus-1 (SARS-CoV-1), Middle Eastern Respiratory Syndrome Coronavirus (MERS-CoV) and most recent Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2). The binding of mannose-binding lectins (MBLs) from plants and microbes to high-mannose containing N-glycans (which may be simple or complex) of glycoproteins found on the surface of viruses has been found to be highly specific and mainly responsible for their antiviral activity. MBLs target various steps in the viral life cycle, including viral attachment, entry and replication. The present review discusses the brief classification and structure of lectins along with antiviral activity of various mannose-specific lectins from plants and microbial sources and their diagnostic and therapeutic applications against viral diseases.
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Affiliation(s)
- Ankita Gupta
- Department of Biochemistry, University of Lucknow, Lucknow, Uttar Pradesh, India
| | - Kusum Yadav
- Department of Biochemistry, University of Lucknow, Lucknow, Uttar Pradesh, India.
| | - Anurag Yadav
- Department of Microbiology, C.P. College of Agriculture, Sardarkrushinagar Dantiwada Agriculture University, District-Banaskantha, Gujarat, India
| | - Rumana Ahmad
- Department of Biochemistry, Era's Lucknow Medical College and Hospital, Era University, Lucknow, Uttar Pradesh, India.
| | - Aditi Srivastava
- Department of Biochemistry, Era's Lucknow Medical College and Hospital, Era University, Lucknow, Uttar Pradesh, India
| | - Dileep Kumar
- Department of Biochemistry, University of Lucknow, Lucknow, Uttar Pradesh, India
- Department of Biotechnology, Khwaja Moinuddin Chishti Language University, Lucknow, Uttar Pradesh, India
| | - Mohammad Amir Khan
- Department of Biochemistry, Era's Lucknow Medical College and Hospital, Era University, Lucknow, Uttar Pradesh, India
| | - U N Dwivedi
- Department of Biochemistry, University of Lucknow, Lucknow, Uttar Pradesh, India
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De Coninck T, Van Damme EJM. Review: The multiple roles of plant lectins. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 313:111096. [PMID: 34763880 DOI: 10.1016/j.plantsci.2021.111096] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 10/14/2021] [Accepted: 10/18/2021] [Indexed: 06/13/2023]
Abstract
For decades, the biological roles of plant lectins remained obscure and subject to speculation. With the advent of technological and scientific progress, researchers have compiled a vast amount of information regarding the structure, biological activities and functionality of hundreds of plant lectins. Data mining of genomes and transcriptome sequencing and high-throughput analyses have resulted in new insights. This review aims to provide an overview of what is presently known about plant lectins, highlighting their versatility and the importance of plant lectins for a multitude of biological processes, such as plant development, immunity, stress signaling and regulation of gene expression. Though lectins primarily act as readers of the glycocode, the multiple roles of plant lectins suggest that their functionality goes beyond carbohydrate-recognition.
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Affiliation(s)
- Tibo De Coninck
- Laboratory of Glycobiology & Biochemistry, Dept. of Biotechnology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
| | - Els J M Van Damme
- Laboratory of Glycobiology & Biochemistry, Dept. of Biotechnology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
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Tsaneva M, Van Damme EJM. 130 years of Plant Lectin Research. Glycoconj J 2020; 37:533-551. [PMID: 32860551 PMCID: PMC7455784 DOI: 10.1007/s10719-020-09942-y] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 07/12/2020] [Accepted: 08/21/2020] [Indexed: 12/15/2022]
Abstract
Lectins are proteins with diverse molecular structures that share the ability to recognize and bind specifically and reversibly to carbohydrate structures without changing the carbohydrate moiety. The history of lectins started with the discovery of ricin about 130 years ago but since then our understanding of lectins has dramatically changed. Over the years the research focus was shifted from 'the characterization of carbohydrate-binding proteins' to 'understanding the biological function of lectins'. Nowadays plant lectins attract a lot of attention especially because of their potential for crop improvement and biomedical research, as well as their application as tools in glycobiology. The present review aims to give an overview of plant lectins and their applications, and how the field evolved in the last decades.
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Affiliation(s)
- Mariya Tsaneva
- Laboratory of Biochemistry and Glycobiology, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Els J M Van Damme
- Laboratory of Biochemistry and Glycobiology, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium.
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Plant lectins and their usage in preparing targeted nanovaccines for cancer immunotherapy. Semin Cancer Biol 2020; 80:87-106. [PMID: 32068087 DOI: 10.1016/j.semcancer.2020.02.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/30/2020] [Accepted: 02/06/2020] [Indexed: 01/06/2023]
Abstract
Plant lectins, a natural source of glycans with a therapeutic potential may lead to the discovery of new targeted therapies. Glycans extracted from plant lectins are known to act as ligands for C-type lectin receptors (CLRs) that are primarily present on immune cells. Plant-derived glycosylated lectins offer diversity in their N-linked oligosaccharide structures that can serve as a unique source of homogenous and heterogenous glycans. Among the plant lectins-derived glycan motifs, Man9GlcNAc2Asn exhibits high-affinity interactions with CLRs that may resemble glycan motifs of pathogens. Thus, such glycan domains when presented along with antigens complexed with a nanocarrier of choice may bewilder the immune cells and direct antigen cross-presentation - a cytotoxic T lymphocyte immune response mediated by CD8+ T cells. Glycan structure analysis has attracted considerable interest as glycans are looked upon as better therapeutic alternatives than monoclonal antibodies due to their cost-effectiveness, reduced toxicity and side effects, and high specificity. Furthermore, this approach will be useful to understand whether the multivalent glycan presentation on the surface of nanocarriers can overcome the low-affinity lectin-ligand interaction and thereby modulation of CLR-dependent immune response. Besides this, understanding how the heterogeneity of glycan structure impacts the antigen cross-presentation is pivotal to develop alternative targeted therapies. In the present review, we discuss the findings on structural analysis of glycans from natural lectins performed using GlycanBuilder2 - a software tool based on a thorough literature review of natural lectins. Additionally, we discuss how multiple parameters like the orientation of glycan ligands, ligand density, simultaneous targeting of multiple CLRs and design of antigen delivery nanocarriers may influence the CLR targeting efficacy. Integrating this information will eventually set the ground for new generation immunotherapeutic vaccine design for the treatment of various human malignancies.
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De Schutter K, Tsaneva M, Kulkarni SR, Rougé P, Vandepoele K, Van Damme EJM. Evolutionary relationships and expression analysis of EUL domain proteins in rice (Oryza sativa). RICE (NEW YORK, N.Y.) 2017; 10:26. [PMID: 28560587 PMCID: PMC5449364 DOI: 10.1186/s12284-017-0164-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 05/16/2017] [Indexed: 05/05/2023]
Abstract
BACKGROUND Lectins, defined as 'Proteins that can recognize and bind specific carbohydrate structures', are widespread among all kingdoms of life and play an important role in various biological processes in the cell. Most plant lectins are involved in stress signaling and/or defense. The family of Euonymus-related lectins (EULs) represents a group of stress-related lectins composed of one or two EUL domains. The latter protein domain is unique in that it is ubiquitous in land plants, suggesting an important role for these proteins. RESULTS Despite the availability of multiple completely sequenced rice genomes, little is known on the occurrence of lectins in rice. We identified 329 putative lectin genes in the genome of Oryza sativa subsp. japonica belonging to nine out of 12 plant lectin families. In this paper, an in-depth molecular characterization of the EUL family of rice was performed. In addition, analyses of the promoter sequences and investigation of the transcript levels for these EUL genes enabled retrieval of important information related to the function and stress responsiveness of these lectins. Finally, a comparative analysis between rice cultivars and several monocot and dicot species revealed a high degree of sequence conservation within the EUL domain as well as in the domain organization of these lectins. CONCLUSIONS The presence of EULs throughout the plant kingdom and the high degree of sequence conservation in the EUL domain suggest that these proteins serve an important function in the plant cell. Analysis of the promoter region of the rice EUL genes revealed a diversity of stress responsive elements. Furthermore analysis of the expression profiles of the EUL genes confirmed that they are differentially regulated in response to several types of stress. These data suggest a potential role for the EULs in plant stress signaling and defense.
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Affiliation(s)
- Kristof De Schutter
- Laboratory Biochemistry and Glycobiology, Department of Molecular Biotechnology, Ghent University, Coupure links 653, B-9000, Ghent, Belgium
| | - Mariya Tsaneva
- Laboratory Biochemistry and Glycobiology, Department of Molecular Biotechnology, Ghent University, Coupure links 653, B-9000, Ghent, Belgium
| | - Shubhada R Kulkarni
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 927, B-9052, Ghent, Belgium
- Bioinformatics Institute Ghent, Ghent University, Technologiepark 927, B-9052, Ghent, Belgium
| | - Pierre Rougé
- UMR 152 PHARMA-DEV, Université de Toulouse, IRD, UPS, Chemin des Maraîchers 35, 31400, Toulouse, France
| | - Klaas Vandepoele
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 927, B-9052, Ghent, Belgium
- Bioinformatics Institute Ghent, Ghent University, Technologiepark 927, B-9052, Ghent, Belgium
| | - Els J M Van Damme
- Laboratory Biochemistry and Glycobiology, Department of Molecular Biotechnology, Ghent University, Coupure links 653, B-9000, Ghent, Belgium.
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Abstract
Lectins are carbohydrate binding proteins present in seeds of many plants, especially corals and beans, in fungi and bacteria, and in animals. Apart from their hemagglutinating property, a wide range of functions have been attributed to them. Their importance in the area of immunohematology is immense. They are used to detect specific red cell antigens, to activate different types of lymphocytes, in order to resolve problems related to polyagglutination and so on. The introduction of advanced biotechnological tools generates new opportunities to exploit the properties of lectins, which were not used earlier. Stem cell research is a very important area in transplant medicine. Certain lectins detect surface markers of stem cell. Hence, they are used to understand the developmental biology of stem cells. The role of various lectins in the areas of transfusion and transplant medicine is discussed in detail in this review.
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Affiliation(s)
- Ajit C Gorakshakar
- Department of Transfusion Medicine, National Institute of Immunohaematology, KEM Hospital Campus, Mumbai, Maharashtra, India
| | - Kanjaksha Ghosh
- Department of Transfusion Medicine, National Institute of Immunohaematology, KEM Hospital Campus, Mumbai, Maharashtra, India
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Dias RDO, Machado LDS, Migliolo L, Franco OL. Insights into animal and plant lectins with antimicrobial activities. Molecules 2015; 20:519-41. [PMID: 25569512 PMCID: PMC6272381 DOI: 10.3390/molecules20010519] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 12/22/2014] [Indexed: 12/11/2022] Open
Abstract
Lectins are multivalent proteins with the ability to recognize and bind diverse carbohydrate structures. The glyco -binding and diverse molecular structures observed in these protein classes make them a large and heterogeneous group with a wide range of biological activities in microorganisms, animals and plants. Lectins from plants and animals are commonly used in direct defense against pathogens and in immune regulation. This review focuses on sources of animal and plant lectins, describing their functional classification and tridimensional structures, relating these properties with biotechnological purposes, including antimicrobial activities. In summary, this work focuses on structural-functional elucidation of diverse lectin groups, shedding some light on host-pathogen interactions; it also examines their emergence as biotechnological tools through gene manipulation and development of new drugs.
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Affiliation(s)
- Renata de Oliveira Dias
- SInova, Programa de Pós Graduação em Biotecnologia, Universidade Católica Dom Bosco, 79117-900 Campo Grande, MS, Brazil.
| | - Leandro Dos Santos Machado
- SInova, Programa de Pós Graduação em Biotecnologia, Universidade Católica Dom Bosco, 79117-900 Campo Grande, MS, Brazil.
| | - Ludovico Migliolo
- SInova, Programa de Pós Graduação em Biotecnologia, Universidade Católica Dom Bosco, 79117-900 Campo Grande, MS, Brazil.
| | - Octavio Luiz Franco
- SInova, Programa de Pós Graduação em Biotecnologia, Universidade Católica Dom Bosco, 79117-900 Campo Grande, MS, Brazil.
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Agostino M, Velkov T, Dingjan T, Williams SJ, Yuriev E, Ramsland PA. The carbohydrate-binding promiscuity of Euonymus europaeus lectin is predicted to involve a single binding site. Glycobiology 2014; 25:101-14. [PMID: 25209582 DOI: 10.1093/glycob/cwu095] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Euonymus europaeus lectin (EEL) is a carbohydrate-binding protein derived from the fruit of the European spindle tree. EEL was first identified for its erythrocyte agglutinating properties and specificity for B and H blood groups. However, a detailed molecular picture of the structural basis of carbohydrate recognition by EEL remains to be developed. In this study, we performed fluorescence titrations of a range of carbohydrates against EEL. Binding of EEL to a wide range of carbohydrates was observed, including a series of blood group-related carbohydrates, mannosides, chitotriose and sialic acid. Affinity was strongest for carbohydrates with H-related structures and the B trisaccharide. A homology model of EEL was produced from templates identified using the HHPred server, which employs hidden Markov models (HMMs) to identify templates. The HMM approach identified that the best templates for EEL were proteins featuring a ricin B-like (R-type) fold. Separate templates were used to model the core and binding site regions of the lectin. Through the use of constrained docking and spatial comparison with a template ligand, binding modes for the carbohydrate ligands were predicted. A relationship between the experimental binding energies and the computed binding energies of the selected docked poses was determined and optimized. Collectively, our results suggest that EEL utilizes a single site for recognition of carbohydrates terminating in a variety of monosaccharides.
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Affiliation(s)
- Mark Agostino
- School of Biomedical Sciences, CHIRI Biosciences, Curtin University, Perth, WA 6845, Australia Joint BSC-IRB Research Program in Computational Biology, Life Science Department, Barcelona Supercomputing Centre, Barcelona 08034, Spain Centre for Biomedical Research, Burnet Institute, Melbourne, VIC 3004, Australia Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Tony Velkov
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Tamir Dingjan
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Spencer J Williams
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, VIC 3010, Australia
| | - Elizabeth Yuriev
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Paul A Ramsland
- School of Biomedical Sciences, CHIRI Biosciences, Curtin University, Perth, WA 6845, Australia Centre for Biomedical Research, Burnet Institute, Melbourne, VIC 3004, Australia Department of Surgery Austin Health, University of Melbourne, Heidelberg, VIC 3084, Australia Department of Immunology, Alfred Medical Research and Education Precinct, Monash University, Melbourne, VIC 3004, Australia
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Fouquaert E, Van Damme EJM. Promiscuity of the euonymus carbohydrate-binding domain. Biomolecules 2012; 2:415-34. [PMID: 24970144 PMCID: PMC4030858 DOI: 10.3390/biom2040415] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 09/17/2012] [Accepted: 09/25/2012] [Indexed: 01/05/2023] Open
Abstract
Plants synthesize small amounts of carbohydrate-binding proteins on exposure to stress. For example, on exposure to drought, high salt, wounding and by treatment with some plant hormones or by pathogen attack. In contrast to the 'classical' plant lectins that are mostly located in the vacuolar compartment, this new class of inducible lectins is present in the cytoplasm and in the nucleus. Taking into account that any physiological role of plant lectins most likely relies on their specific carbohydrate-binding activity and specificity, the discovery of these stress-related lectins provides strong evidence for the importance of protein-carbohydrate-interactions in plant cells. Hitherto, six families of such nucleocytoplasmic lectins have been identified in plants. This review will focus on the nucleocytoplasmic lectins with one or more Euonymus lectin (EUL) domain(s). The carbohydrate-binding specificity of EUL proteins from a monocot, a dicot and a lower plant has been compared. Furthermore, modeling of the different EUL domains revealed a similar ß-trefoil fold consisting of three bundles of ß-sheet organized around a pseudo three-fold symmetry axis. Despite the sequence similarity and the conserved amino acids in the binding site, glycan array analyses showed that the EUL domain has a promiscuous carbohydrate-binding site capable of accommodating high mannose N-glycans, blood group B related structures and galactosylated epitopes.
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Affiliation(s)
- Elke Fouquaert
- Laboratory of Biochemistry and Glycobiology, Department of Molecular Biotechnology, Ghent University, Coupure links 653, 9000 Ghent, Belgium.
| | - Els J M Van Damme
- Laboratory of Biochemistry and Glycobiology, Department of Molecular Biotechnology, Ghent University, Coupure links 653, 9000 Ghent, Belgium.
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Novel Concepts About the Role of Lectins in the Plant Cell. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2011; 705:271-94. [DOI: 10.1007/978-1-4419-7877-6_13] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Fouquaert E, Peumans WJ, Smith DF, Proost P, Savvides SN, Van Damme EJM. The "old" Euonymus europaeus agglutinin represents a novel family of ubiquitous plant proteins. PLANT PHYSIOLOGY 2008; 147:1316-24. [PMID: 18451263 PMCID: PMC2442556 DOI: 10.1104/pp.108.116764] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2008] [Accepted: 04/25/2008] [Indexed: 05/20/2023]
Abstract
Molecular cloning of the "old" but still unclassified Euonymus europaeus agglutinin (EEA) demonstrated that the lectin is a homodimeric protein composed of 152 residue subunits. Analysis of the deduced sequence indicated that EEA is synthesized without a signal peptide and undergoes no posttranslational processing apart from the removal of a six-residue N-terminal peptide. Glycan array screening confirmed the previously reported high reactivity of EEA toward blood group B oligosaccharides but also revealed binding to high mannose N-glycans, providing firm evidence for the occurrence of a plant carbohydrate-binding domain that can interact with structurally different glycans. Basic Local Alignment Search Tool searches indicated that EEA shares no detectable sequence similarity with any other lectin but is closely related evolutionarily to a domain that was first identified in some abscisic acid- and salt stress-responsive rice (Oryza sativa) proteins, and, according to the available sequence data, might be ubiquitous in Spermatophyta. Hence, EEA can be considered the prototype of a novel family of presumably cytoplasmic/nuclear proteins that are apparently ubiquitous in plants. Taking into account that some of these proteins are definitely stress related, the present identification of the EEA lectin domain might be a first step in the recognition of the involvement and importance of protein-glycoconjugate interactions in some essential cellular processes in Embryophyta.
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Affiliation(s)
- Elke Fouquaert
- Laboratory of Biochemistry and Glycobiology, Department of Molecular Biotechnology , Ghent University, 9000 Ghent, Belgium
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Opitz L, Lehmann S, Zimmermann A, Reichl U, Wolff MW. Impact of adsorbents selection on capture efficiency of cell culture derived human influenza viruses. J Biotechnol 2007; 131:309-17. [PMID: 17765993 DOI: 10.1016/j.jbiotec.2007.07.723] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2007] [Revised: 06/27/2007] [Accepted: 07/10/2007] [Indexed: 10/23/2022]
Abstract
The study aims on affinity matrix selection for a cell culture derived influenza virus capture step in downstream processing. Euonymus europaeus lectin (EEL) was used as an affinity ligand. Human influenza A/Puerto Rico/8/34 (H1N1) virus produced in MDCK cells was chosen as a model strain. The chromatographic separation characteristics of reinforced cellulose membranes and different matrices such as agarose, cellulose, polymer and glass particles with immobilized EEL have been determined. Results obtained were compared to affinity matrices, which are currently used in large-scale vaccine manufacturing. Mass balances for the viral membrane protein hemagglutinin showed that EEL affinity chromatography results in higher recoveries than conventional processes using Cellufine sulphate and heparinized agarose. The most efficient media, a polymer and a cellulose membrane, have been further characterized by protein and host cell DNA measurements. Separations based on the polymer matrix and the cellulose membrane removed contaminating DNA to 0.2 and 1%, respectively. Total protein contents were decreased to 50 and 31%, respectively. The EEL-membrane showed the highest influenza virus binding capacity. These characteristics demonstrate that EEL affinity chromatography is a promising candidate for capturing influenza viruses from MDCK cell culture broths in addition to currently applied chromatographic media.
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Affiliation(s)
- Lars Opitz
- Bioprocess Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstrasse 1, 39106 Magdeburg, Germany.
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Wilkins S, Billingsley PF. Partial characterization of oligosaccharides expressed on midgut microvillar glycoproteins of the mosquito, Anopheles stephensi Liston. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2001; 31:937-948. [PMID: 11483430 DOI: 10.1016/s0965-1748(01)00040-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Midguts of the malaria-transmitting mosquito, Anopheles stephensi, were homogenized and microvillar membranes prepared by calcium precipitation and differential centrifugation. Oligosaccharides present on the microvillar glycoproteins were identified by lectin blotting before and after in vitro and in situ treatments with endo- and exo-glycosidases. Twenty-eight glycoproteins expressed a structurally restricted range of terminal sugars and oligosaccharide linkages. Twenty-three glycoproteins expressed oligomannose and/or hybrid N-linked oligosaccharides, some with alpha1-6 linked fucose as a core residue. Complex-type N-linked oligosaccharides on eight glycoproteins all possessed terminal N-acetylglucosamine, and alpha- and beta-linked N-acetylgalactosamine. Eight glycoproteins expressed O-linked oligosaccharides all containing N-acetylgalactosamine with or without further substitutions of fucose and/or galactose. Galactosebeta1-3/4/6N-acetylglucosamine-, sialic acidalpha2-3/6galactose-, fucosealpha1-2galactose- and galactosealpha1-3galactose- were not detected. Terminal alpha-linked N-acetylgalactosamine residues on N-linked oligosaccharides are described for the first time in insects. The nature and function of these midgut glycoproteins have yet to be identified, but the oligosaccharide side chains are candidate receptors for ookinete binding and candidate targets for transmission blocking strategies.
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Affiliation(s)
- S Wilkins
- Department of Biology, Imperial College of Science Technology and Medicine, SW7 2BB, London, UK
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Wu AM, Song SC, Tsai MS, Herp A. A Guide to the Carbohydrate Specificities of Applied Lectins-2. THE MOLECULAR IMMUNOLOGY OF COMPLEX CARBOHYDRATES —2 2001; 491:551-85. [PMID: 14533822 DOI: 10.1007/978-1-4615-1267-7_37] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Affiliation(s)
- A M Wu
- Glyco-Immunochemistry Research Laboratory, Chang-Gung Medical College, Chang-Gung University, Kwei-San, Tao-Yuan 33332, Taiwan.
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Petryniak J, Huard TK, Goldstein IJ. alpha-D-galactose-bearing glycoproteins on the surface of stimulated murine peritoneal macrophages. Biochemical and immunochemical characterization of purified glycoproteins. EUROPEAN JOURNAL OF BIOCHEMISTRY 1992; 206:197-207. [PMID: 1587269 DOI: 10.1111/j.1432-1033.1992.tb16917.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Two glycoproteins were isolated from lysates of thioglycollate-stimulated, murine peritoneal macrophages by affinity chromatography on immobilized Griffonia simplicifolia I lectin and by preparative SDS/PAGE. The glycoproteins were readily labeled on the surface of intact macrophages with 3H and 125I. The labeled glycoproteins migrated as broad bands of molecular mass 92-109 kDa and 115-125 kDa. The mobility of the glycoproteins decreased only slightly after reduction with dithiothreitol, indicating the absence of intersubunit disulfide bridges. The 92-kDa and 115-kDa glycoproteins had pI 5.2-5.4 and pI less than or equal to 4, respectively. Digestion of both glycoproteins with alpha-galactosidase released 23% of their 3H content and abolished their ability to bind to the G. simplicifolia I lectin, showing that they contain terminal alpha-D-galactosyl groups. After reduction with 2-mercaptoethanol, each glycoprotein fraction was sensitive to N-glycanase; the 115-kDa glycoproteins produced a smear with the front at approximately 67 kDa, whereas the 92-kDa glycoprotein gave two bands of 61 kDa and 75 kDa. Unreduced glycoproteins were insensitive to N-glycanase, suggesting the presence of intramolecular disulfide bonds. Although each glycoprotein fraction was sensitive to endoglycosidase H, this enzyme produced only slight changes in molecular mass when compared with N-glycanase. From these results as well as from the specificity of the enzymes involved, it is concluded that each glycoprotein fraction contains complex-type oligosaccharides and a small amount of high-mannose and/or hybrid-type oligosaccharides. While each glycoprotein fraction was bound to Datura stramonium lectin, they failed to react with anti-[i-(Den)] serum and their digestion with endo-beta-galactosidase did not cause a band shift in SDS/PAGE. Taken together, these results suggest the presence of N-acetyllactosamine units which are not arrayed in linear form but occur as single units, bound either to C2 and C6, or to C2 and C4, or both, of outer mannosyl residues on complex-type oligosaccharides. The glycoprotein(s) fraction precipitated with anti-[I (Step)] serum, suggesting the presence of branched lactosaminoglycans. Digestion of both glycoprotein fractions with a mixture of sialidase and O-glycanase did not alter their mobility in SDS/PAGE, suggesting a lack or low content of O-linked trisaccharides and tetrasaccharides. Each glycoprotein fraction was bound specifically to Sambucus nigra and Maackia amurensis immobilized lectins, indicating the presence of sialic acid linked alpha 2,6 to subterminal D-galactose or N-acetylgalactosamine residues, and alpha 2,3 to N-acetyllactosamine residues, respectively.
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Affiliation(s)
- J Petryniak
- Department of Biological Chemistry, University of Michigan Medical School, Ann Arbor 48109-0624
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Petryniak J. Alpha-D-galactosylation of surface fucoglycoconjugate(s) upon stimulation/activation of murine peritoneal macrophages. Glycoconj J 1992; 9:92-8. [PMID: 1344714 DOI: 10.1007/bf00731705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Murine resident macrophages express, on their surface, carbohydrate epitopes which undergo changes during their stimulation/activation as monitored by binding of 125I labelled Evonymus europaea and Griffonia simplicifolia I-B4 lectins. Treatment of the stimulated macrophages with coffee bean alpha-galactosidase abolished binding of the GS I-B4 isolectin and changed the binding pattern of the Evonymus lectin. The affinity (Ka) of Evonymus lectin for alpha-galactosidase-treated macrophages decreased approximately 23-fold, from 1.25 x 10(8) M-1 to 5.5 x 10(6) M-1. Subsequent digestion of alpha-galactosidase-treated macrophages with alpha-L-fucosidase from Trichomonas foetus, further reduced binding of Evonymus lectin. Resident macrophages showed the same pattern of Evonymus lectin binding, with the same affinity, as alpha-galactosidase-treated, stimulated macrophages. These results, together with a consideration of the carbohydrate binding specificity of the Evonymus lectin which, in the absence of alpha-D-galactosyl groups, requires alpha-L-fucosyl groups for binding, indicate the presence, on resident macrophages, of glycoconjugates with terminal alpha-L-fucosyl residues. It is also concluded that during macrophage stimulation/activation alpha-D-galactosyl residues are added to this glycoconjugate and that they form part of the receptor for Evonymus lectin. The same glycoconjugate(s) is/are also expressed on the activated macrophage IC-21 cell line which exhibits the same characteristics as that of stimulated peritoneal macrophages, i.e., it contains alpha-D-galactosyl end groups and is resistant to the action of trypsin. Both lectins were also specifically bound to Corynaebacterium parvum activated macrophages.
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Affiliation(s)
- J Petryniak
- Department of Biological Chemistry, University of Michigan, Ann Arbor 48109
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Gazzinelli RT, Pereira ME, Romanha A, Gazzinelli G, Brener Z. Direct lysis of Trypanosoma cruzi: a novel effector mechanism of protection mediated by human anti-gal antibodies. Parasite Immunol 1991; 13:345-56. [PMID: 1717927 DOI: 10.1111/j.1365-3024.1991.tb00288.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Anti-gal antibodies directed against a carbohydrate epitope present in mouse laminin (galactosyl alpha 1-3 galactose) and detected in high levels in sera from patients in the acute phase of Chagas disease are responsible for the direct lysis (DL) of Trypanosoma cruzi blood forms independent of either the classic or alternative complement pathways. Furthermore, the lectins Euonymus europaeus (EE) specific for the carbohydrates gal alpha 1-3 gal present a similar lytic activity against T. cruzi at the same concentrations of purified anti-gal antibodies. The DL activity was tested with several other lectins but Concanavalin A (Con A) specific for alpha-D-mannose and alpha-D-glucose was the only one also presenting lytic activity. The lectins and anti-gal antibodies lytic activity can be inhibited by specific carbohydrates suggesting that this phenomenon is related to the capability of these lectins or anti-gal antibodies to bind to a crucial surface component of T. cruzi. Moreover, the infectivity of T. cruzi blood forms to mice was clearly inactivated by incubation with acute chagasic sera (ACS) but not by ACS absorbed by immunoaffinity chromatography with mouse laminin, a strong evidence that high levels of anti-gal antibodies participate in the decline of the parasitaemia from the acute to the chronic phase in Chagas disease.
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Affiliation(s)
- R T Gazzinelli
- Centro de Pesquisas René Rachou, Fiocruz, Minas Gerais, Brasil
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19
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Gazzinelli RT, Romanha AJ, Fontes G, Chiari E, Gazzinelli G, Brenner Z. Distribution of carbohydrates recognized by the lectins Euonymus europaeus and concanavalin A in monoxenic and heteroxenic trypanosomatids. THE JOURNAL OF PROTOZOOLOGY 1991; 38:320-5. [PMID: 1787421 DOI: 10.1111/j.1550-7408.1991.tb01366.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We observed a wide distribution of the carbohydrate epitopes galactosyl alpha(1-3)galactose (gal alpha1-3 gal), alpha-glucoside and alpha-mannoside in mono- and heteroxenic trypanosomatids by using fluorescein-labelled lectins of Euonymus europaeus (EE) and Concanavalin A (Con A) as well as sera from acute chagasic patients who have very high levels of anti-gal alpha(1-3)gal antibodies. The direct fluorescence test for gal alpha1-3 gal with EE was positive at minimum concentrations of 6 micrograms/ml for heteroxenic trypanosomatids and 0.7 micrograms/ml for monoxenic ones and for the plant parasite, Phytomonas. On the other hand, heteroxenic trypanosomatids that infect vertebrates bound ten-fold more Con A than monoxenic flagellates and Phytomonas. These data were confirmed in ELISA and Western Blot assays carried out with peroxidase-labelled EE and Con A. Euonymus europaeus recognized several glycoproteins in all trypanosomatids that we tested. Con A, however, recognized a glycoprotein cluster in heteroxenic protozoa, which ranging from 60-120 kDa, seemed to lack monoxenic parasites and Phytomonas. These findings suggest that alpha-D-mannose and alpha-D-glucose might play an important role in the interaction between trypanosomatids and vertebrate hosts.
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Affiliation(s)
- R T Gazzinelli
- Centro de Pesquisas René Rachou, Belo Horizonte, MG, Brazil
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20
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Kivelä T. Characterization of galactose-containing glycoconjugates in the human retina: a lectin histochemical study. Curr Eye Res 1990; 9:1195-209. [PMID: 2091899 DOI: 10.3109/02713689009003476] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Seven specimens of morphologically normal formalin-fixed and paraffin-embedded human retina were studied using a panel of fourteen biotinylated lectins, all of which react with glycoconjugates containing galactose and N-acetylgalactosamine residues. Agaricus bisporus (ABA), Bauhinia purpurea (BPA), Phaseolus vulgaris (PHA-E), peanut (PNA) and Ricinus communis (RCA-I) agglutinins labeled photoreceptor cells prior to enzymatic predigestion. BPA and PNA bound specifically to cones. The plexiform layers reacted with ABA, BPA and PHA-E, while only ABA and PHA-E labeled the nuclear layers. After pretreatment with neuraminidase to remove terminal sialic acid, all five lectins, as well as Erythrina cristagalli (ECA), Helix pomatia (HPA) and Maclura pomifera (MPA) agglutinins labeled both rods and cones. Furthermore, the plexiform layers additionally reacted with ECA, PNA and RCA-I, and the nuclear layers with BPA and RCA-I after neuraminidase pretreatment. Retinal vascular endothelial cells consistently bound ABA, ECA, PHA-E and RCA-I, but they could also bind BPA, HPA, Bandeiraea simplicifolia (BSA-I), Dolichos biflorus (DBA) and Euonymus europaeus (EEA) agglutinins in unpretreated sections, as well as MPA, PNA, soybean (SBA) and Sophora japonica (SJA) agglutinins subsequent to predigestion with neuraminidase. The nonpigmented ciliary epithelium reacted with the same lectins as photoreceptor cells, but it was also labeled by DBA. Sambucus nigra agglutinin (SNA) did not specifically bind to any intraocular structure. These findings favor the theory that, in unpretreated specimens, Gal(beta 1----3)GalNAc (BPA and PNA) is mainly responsible for labeling of cones, while Gal(beta 1----3/4)GlcNAc units, partly substituted with terminal sialic acid (PHA-E and RCA-I), explain labeling of rods. Following pretreatment with neuraminidase, further Gal(beta 1----3)GalNAc (BPA and PNA) and, especially, Gal(beta 1----3/4)GlcNAc (BPA, ECA, PHA-E, PNA and RCA-I) and alpha GalNAc units (BPA, HPA and MPA), the latter partly linked to the protein backbone, contribute to labeling of photoreceptor cells. Gal(beta 1----3/4)GlcNAc units may be mainly responsible for labeling of nuclear and plexiform layers. Finally, other related receptor sites (SBA and SJA), some of which are blood-group specific (BSA-I, DBA, EEA and HPA) are restricted to retinal vascular endothelia.
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Affiliation(s)
- T Kivelä
- Department of Ophthalmology, Helsinki University Central Hospital, Finland
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21
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Halwani F, Jothy S. Biochemical characterization and serological immunoassay of a pancreatic carcinoma-associated antigen defined by monoclonal antibody LD-B1. Exp Mol Pathol 1990; 53:112-25. [PMID: 1702061 DOI: 10.1016/0014-4800(90)90036-d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Several glycosylated macromolecules associated with normal and malignant pancreatic ductal cells have been described. We have generated a monoclonal antibody, LD-B1, by immunizing Balb/c mice with the postmicrosomal extract of fresh human pancreatic ductal carcinoma tissue and used it in this study to characterize the nature of the target antigen. The antigen detected by LD-B1 antibody was purified to homogeneity by affinity chromatography. Enzymatic and biochemical analysis showed it to be a nonsialylated glycoprotein that on Western blotting and immunoprecipitation analyses had an apparent molecular weight of 300-400 kDa. The mobility on gels was not affected by reducing or denaturing conditions. Competitive inhibition assays with various MoAbs and lectins indicated that the epitope recognized by LD-B1 antibody involves the carbohydrate sequence Gal beta 1----3Gal beta 1----3(or 4)GlcNAc beta 1----3Gal. Using a double determinant sandwich ELISA, elevated antigen levels were detected in the sera of 5 of 6 patients with pancreatic carcinoma, 0 of 3 patients with chronic pancreatitis, and 12 of 137 normal controls. These results suggest that patients with pancreatic carcinoma exhibit altered expression of a heavily glycosylated molecule related to a blood group precursor immunodeterminant.
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MESH Headings
- Animals
- Antibodies, Monoclonal/immunology
- Antigens, Neoplasm/analysis
- Antigens, Neoplasm/immunology
- Antigens, Neoplasm/isolation & purification
- Blotting, Western
- Carbohydrate Sequence
- Carcinoma, Intraductal, Noninfiltrating/chemistry
- Carcinoma, Intraductal, Noninfiltrating/immunology
- Carcinoma, Intraductal, Noninfiltrating/pathology
- Chromatography, Affinity
- Enzyme-Linked Immunosorbent Assay
- Epitopes/immunology
- Humans
- Lectins
- Mice
- Mice, Inbred BALB C
- Molecular Sequence Data
- Pancreatic Neoplasms/chemistry
- Pancreatic Neoplasms/immunology
- Pancreatic Neoplasms/pathology
- Precipitin Tests
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Affiliation(s)
- F Halwani
- Department of Pathology, McGill University, Montreal, Quebec, Canada
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22
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Acharya S, Patanjali SR, Sajjan SU, Gopalakrishnan B, Surolia A. Thermodynamic analysis of ligand binding to winged bean (Psophocarpus tetragonolobus) acidic agglutinin reveals its specificity for terminally monofucosylated H-reactive sugars. J Biol Chem 1990. [DOI: 10.1016/s0021-9258(19)38438-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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23
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Wu AM, Sugii SJ, Herp A. A guide for carbohydrate specificities of lectins. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1988; 228:819-47. [PMID: 3051928 DOI: 10.1007/978-1-4613-1663-3_37] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- A M Wu
- Department of Veterinary Pathology, College of Veterinary Medicine, Texas A & M University, College Station 77843
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Sikder SK, Kabat EA, Roberts DD, Goldstein IJ. Immunochemical studies on the combining site of the blood group A-specific lima bean lectin. Carbohydr Res 1986; 151:247-60. [PMID: 3768892 DOI: 10.1016/s0008-6215(00)90345-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The combining site of the lima bean (Phaseolus lunatus) lectin (LBL) was studied by quantitative precipitin and precipitin-inhibition assays. The lectin precipitated best with hog gastric mucosa and human ovarian cyst blood group A1 substances and moderately with A2 substances. B substances precipitated very poorly and H, Lea, Leb, and precursor I substances did not react. Blood group A1 and A2 substances reacted to varying extents and these differences are attributable to heterogeneity resulting from incomplete biosynthesis of carbohydrate chains. By inhibition of precipitation of LBL with A1 blood group substance, the lectin was found to be most specific for fucose-containing oligosaccharides having the A trisaccharide, DGalNAc alpha 1----3[L-Fuc alpha 1----2]DGal determinant. The best inhibitor, an A-specific hexasaccharide, DGalNAc alpha 1----3[LFuc alpha 1----2]DGal beta 1----3DGlcNAc beta 1----3-DGal beta 1----4DGlc, was 11 times more active than the A trisaccharide. A difucosyl oligosaccharide with a second fucose linked alpha 1----3 to the DGlcNAc is less active; fucose linked alpha 1----4 to DGlcNAc was completely inactive. These results suggest that specific interactions with the subterminal sugars may be important in the binding, and that the specificity of the lectin combining site involves at least the nonreducing terminal four and probably five sugars of the hexasaccharide. Thus LBL has a more-extended binding site than was inferred previously and is in the upper range of antibody combining-site sizes.
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Galactosyl-binding lectins from the tunicate Didemnum candidum. Carbohydrate specificity and characterization of the combining site. J Biol Chem 1986. [DOI: 10.1016/s0021-9258(18)67636-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Petryniak J, Goldstein IJ. Immunochemical studies on the interaction between synthetic glycoconjugates and alpha-L-fucosyl binding lectins. Biochemistry 1986; 25:2829-38. [PMID: 3718924 DOI: 10.1021/bi00358a014] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Evonymus europaea lectin precipitated with alpha DGal(1----3) beta DGal(1----4)beta DGlcNAc-bovine serum albumin (BSA), alpha LFuc(1----2)beta DGal(1----3)beta DGlcNAc-BSA, alpha LFuc(1----2)beta DGal(1----4)DGlcNAc, and alpha DGal(1----3)[alpha LFuc(1----2)]beta DGal-BSA. However, the lectin neither precipitated with alpha LFuc(1----2)-beta DGal-BSA, alpha DGal(1----3)beta DGal-BSA, or beta DGal(1----4)beta DGlcNAc-BSA nor agglutinated erythrocytes of Oh phenotype having multiple terminal beta DGal(1----4)beta DGlcNAc residues. These results indicate that the minimal structural requirement for glycoprotein precipitation or cell agglutination by the lectin includes any of the three trisaccharides (fucosylated or nonfucosylated) derived from the blood group B tetrasaccharide. The monosaccharides linked to the beta-D-galactosyl residue in the blood group B tetrasaccharide, namely, alpha-D-galactose, alpha-L-fucose, and N-acetyl-beta-D-glucosamine, participate almost equally in binding to the lectin in as much as removal of any one of these sugars reduces the inhibiting potency of the resulting trisaccharide. alpha LFuc(1----2)beta DGal(1----3)beta DGlcNAc-BSA (H type 1) and alpha LFuc(1----2)beta DGal(1----4)beta DGlcNAc (H type 2) were precipitated to the same extent. The E. europaea lectin neither precipitated alpha DGal(1----4)-beta DGal(1----4)beta DGlcNAc-BSA, Lea-BSA, Leb-BSA, or beta DGlcNAc(1----4)[alpha LFuc(1----6)]beta DGlcNAc-BSA nor agglutinated Oh,Lea and Oh,Leb erythrocytes, demonstrating that terminal D-galactose linked alpha-(1----4) to subterminal beta-D-galactose, or alpha-L-fucose linked to N-acetylglucosamine, prevents lectin binding. Corey-Pauling-Koltun molecular models, built on the basis of data from 1H NMR and hard-sphere exo-anomeric (HSEA) calculations provided by Lemieux and co-workers [Lemieux, R. U., Bock, K., Delbaere, L. T. J., Koto, S., & Rao, V. S. (1980) Can. J. Chem. 58, 631-653], show that these alpha-D-galactosyl and alpha-L-fucosyl groups act to sterically hinder lectin binding to these oligosaccharides; these observations also suggest that the lectin binds to the beta-side of these oligosaccharides. These sides, on both blood group H type 1 and blood group H type 2 oligosaccharides, provide a similar contour which can fully account for their equal reactivity with E. europaea lectin. The only difference found between Lotus and Ulex I lectins in precipitating ability was that only Lotus precipitated with beta DGlcNAc(1----4)[alpha LFuc(1----6)]beta DGlcNAc-BSA.(ABSTRACT TRUNCATED AT 400 WORDS)
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Petryniak J, Huard TK, Nordblom GD, Goldstein IJ. Lectin binding studies on murine peritoneal cells: physicochemical characterization of the binding of lectins from Datura stramonium, Evonymus europaea, and Griffonia simplicifolia to murine peritoneal cells. Arch Biochem Biophys 1986; 244:57-66. [PMID: 3947070 DOI: 10.1016/0003-9861(86)90094-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Purified 125I-labeled lectins from Datura stramonium, Evonymus europaea, and Griffonia simplicifolia (I-B4 isolectin) were used to analyze changes in the expression of carbohydrates on the surface of resident (PC) and thioglycollate-stimulated murine (C57B/6J) peritoneal exudate cells (PEC). The lectins from D. stramonium, E. europaea, and G. simplicifolia I-B4 bind specifically to PEC with relatively high affinity (Kd = 5.65 +/- 1.08 X 10(-7) M, 1.08 +/- 0.12 X 10(-8) M, and 1.33 +/- 0.15 X 10(-7) M, respectively). Assuming a single lectin molecule binds to each cell surface saccharide, the number of receptor sites per cell ranged for different cell samples from 22.3 to 50.0 X 10(6), from 3.8 to 4.8 X 10(6), and from 2.0 to 16.8 X 10(6) for D. stramonium, E. europaea, and G. simplicifolia I-B4 lectins, respectively. There were approximately 3- to 7-fold, 16- to 20-fold, and 2- to 20-fold increases in binding capacity for D. stramonium, E. europaea and G. simplicifolia I-B4, respectively, compared to the binding to resident, peritoneal cells. Scatchard plots of the binding of all three lectins to PEC were linear, suggesting that the receptor sites for these lectins are homogeneous and noninteracting. The binding capacity of these lectins to PEC was unchanged after trypsin digestion of cells. The expression of carbohydrates on the surface of PEC was also monitored by an agglutination assay. PEC were agglutinated by all three lectins whereas PC either were not agglutinated or were agglutinated only at high lectin concentrations. On the basis of our knowledge of the carbohydrate binding specificity of the D. stramonium and G. simplicifolia I-B4 lectins, we postulate that, parallel with thioglycolate stimulation, there is an increase in the number of N-acetyllactosamine residues and terminal alpha-D-galactosyl end groups. The blood group B, and H type 1 determinants--DGa1 alpha 1,3[LFuc alpha 1,2]DGa1 beta 1,3(or 4)DGlcNAc and LFuc alpha 1,2DGa1 beta 1,3DG1cNAc, respectively, as well as DGa1 alpha 1,3DGa1 beta 1,3(or 4)DGlcNAc--may be considered to be possible receptors for the E. europaea lectin. These glycoconjugates, present on the surface of peritoneal exudate cells, provide new chemical markers for studying the differentiation of resident peritoneal cells.
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Yamashita K, Kochibe N, Ohkura T, Ueda I, Kobata A. Fractionation of L-fucose-containing oligosaccharides on immobilized Aleuria aurantia lectin. J Biol Chem 1985. [DOI: 10.1016/s0021-9258(18)89125-6] [Citation(s) in RCA: 183] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Conformations and interactions of oligosaccharides related to the ABH and Lewis blood groups. POLYSACCHARIDES 1985. [DOI: 10.1007/978-1-349-06369-7_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Gallagher JT. Carbohydrate-binding properties of lectins: a possible approach to lectin nomenclature and classification. Review. Biosci Rep 1984; 4:621-32. [PMID: 6498310 DOI: 10.1007/bf01121015] [Citation(s) in RCA: 81] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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32
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Duk M, Duś D, Gawlikowski W, Lisowska E. Evaluation of glycoconjugates on the K562 cell surface by means of lectin binding — comparison with human erythrocytes. Glycoconj J 1984. [DOI: 10.1007/bf01875415] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Drzeniek Z, Krotkiewski H, Syper D, Lisowska E. Reactivity of glycosidase-treated, blood-group M and N glycopeptides with lectins. Carbohydr Res 1983; 120:315-21. [PMID: 6627251 DOI: 10.1016/0008-6215(83)88025-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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34
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Petryniak J, Duś D, Podwińska J. Agglutination of murine and guinea pig peritoneal cells by alpha-L-fucose-binding lectin: Evonymus europaea. Eur J Immunol 1983; 13:459-64. [PMID: 6861874 DOI: 10.1002/eji.1830130606] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Among lectins from Lotus tetragonolobus, Ulex europaeus I and Evonymus europaea, agglutinating cells with blood group H determinants containing L-fucose alpha 1 leads to 2-linked to subterminal D-galactose, only the last lectin agglutinates thioglycolate- and paraffin oil-stimulated murine and guinea pig peritoneal exudate cells (PEC). The agglutination is inhibited by specific inhibitors of Evonymus lectin only: lacto-N-fucopentaose I and lactose. These results suggest the presence of a determinant on the surface of PEC, containing L-fucose alpha 1-linked at the nonreducing end which is different from blood group H determinants. Nonstimulated murine peritoneal cells (PC) are not agglutinated by the lectin but become agglutinable after neuraminidase treatment. Unstimulated guinea pig PC from different animals are agglutinated to a different extent by the same lectin concentration and show increased agglutinability after neuraminidase digestion. These results show that receptor for Evonymus lectin also exists on the nonstimulated PC but access to it is hindered by sialic acid. Trypsin- and pronase-digested PEC show increased agglutinability with Evonymus lectin. These results suggest that the lectin receptor is a glycolipid. Since alpha-linked L-fucose has been suggested as a part of the macrophage receptor for migration inhibitory factor in the guinea pig (Remold, J. Exp. Med. 1973. 138: 1065), the effect of Evonymus europaea lectin on the migration of PEC was studied. It was found that lectin inhibits the migration of PEC in the capillary tube assay up to 80%.
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35
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Schultz DR, Arnold PI. Effect of sequential glycolysis of the lectin of Euonymus europaeus on activation of the classical complement pathway in normal human serum. Mol Immunol 1982; 19:1681-9. [PMID: 7162523 DOI: 10.1016/0161-5890(82)90280-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The lectin of Euonymus europaeus at concentrations of 5-21 micrograms/ml causes activation of the classical complement (C) pathway (C1, C4, C2) when added to normal human serum at 37 degrees C. At higher concentrations, C3 is also consumed. The effect is dependent on a 'natural antibody' in serum of the IgM class which reacts with an epitope of the lectin. With physicochemical methods, the carbohydrate of the lectin was shown to be involved in the activation of C, but not involved in the agglutination of group B erythrocytes. Removal of N-acetyl-D-glucosamine from the lectin with an exoglycosidase greatly reduced the activation of C in serum, but it did not affect erythroagglutination. Using competitive binding studies with various sugars, it was confirmed that N-acetyl-D-glucosamine is the dominant specificity of a determinant for activation of the classical C pathway in serum.
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Presper K, Basu M, Basu S. Biosynthesis in vitro of a blood group B-active fucose-containing hexaglycosylceramide from neolactopentaosylceramide in bovine spleen. J Biol Chem 1982. [DOI: 10.1016/s0021-9258(19)68342-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Yamamoto S, Sakai I. Composition and immunochemical properties of glycoproteins with anti-B agglutinin activity isolated from Euonymus sieboldiana seeds. JOURNAL OF IMMUNOGENETICS 1981; 8:271-9. [PMID: 7276584 DOI: 10.1111/j.1744-313x.1981.tb00769.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Five major glycoproteins with anti-B agglutinin activity were isolated from seeds of Euonymus Sieboldiana by a procedure based on precipitation with ammonium sulphate, Sepharose 4B gel filtration, CM- and DEAE-Sepharose chromatography and Sephacryl S-200 gel filtration. The purified glycoproteins each gave a single symmetrical peak on Sephacryl S-200 gel filtration with elution volumes corresponding to molecular weights of approximately 15,000 to 130,000, each forming a single precipitin line on gel diffusion plates with anti-E. Sieboldiana antibody. These anti-B glycoproteins were rich in acidic amino acids without cysteine and methionine and contained about 8--36% carbohydrate, of which galactose, arabinose and glucose were the predominant sugars, with small amounts of glucosamine, rhamnose, fucose, xylose, mannose and ribose. The most anti-B active lectin agglutinated human B red blood cells at a concentration of 2 micrograms/ml and was strongly inhibited by melibiose. The three other lectins with anti-B agglutinin activity, however, were not inhibited by any galactose-containing glycosides.
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Kirschenbaum DM. A compilation of amino acid analyses of proteins - XVI. Residues per molecule - 13. THE INTERNATIONAL JOURNAL OF BIOCHEMISTRY 1981; 13:637-53. [PMID: 7238991 DOI: 10.1016/0020-711x(81)90190-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Petryniak J, Petryniak B, Waśniowska K, Krotkiewski H. Isolation and immunochemical characterization of the Euonymus europaeus lectin receptor from the major sialoglycoprotein of human O erythrocytes. EUROPEAN JOURNAL OF BIOCHEMISTRY 1980; 105:335-41. [PMID: 7379790 DOI: 10.1111/j.1432-1033.1980.tb04506.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Kisailus EC, Kabat EA. A study of the specificity of Bandeiraea simplicifolia lectin I by competitive-binding assay with blood-group substances and with blood-group A and B active and other oligosaccharides. Carbohydr Res 1978; 67:243-55. [PMID: 568514 DOI: 10.1016/s0008-6215(00)83746-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The specificity of Bandeiraea simplicifolia lectin I (BS I) has been studied by competitive-binding assays (CBA) using tritium-labeled human B and hog A substances. Blood-group B substances isolated from horse gastric mucosae and from human ovarian-cyst fluids were much better inhibitors of binding of tritiated blood-group B substance to insoluble BS I-Sepharose 2B than were human blood-group A substances from saliva and ovarian-cyst fluid. A and B active blood-group substances showed the same range of potency in inhibiting binding of tritium-labeled hog A substance to BS I-Sepharose 2B. CBA with BS I-Sepharose 2B, labeled human blood-group B substance, and human blood-group A and B active aligosaccharides separated the haptens into two groups differing in slope. Group 1, containing methyl alpha-D-GalNAcp, D-GalNAcp, and an A active pentasaccharide ARL 0.52, with 3, 19, and 25 nmol respectively needed for 50% inhibition of binding, has a lower slope than group 2, which contains alpha-D-GalNAcp-(1 leads to 3)-2-acetamido-2-deoxy-D-galactitol and p-nitrophenyl alpha-D-GalNAcp, with 3 nmol of each required for 50% inhibition of binding, as well as ten glycosides with terminal, nonreducing, alpha-linked D-Galp. The most potent inhibitors of this group were p-nitrophenyl alpha-D-Galp, alpha-D-Galp-(1 leads to 3)-D-Galp, alpha-D-Galp-(1 leads to 6)-D-Glcp, and methyl alpha-D-Galp, with 5, 7.4, 9.6, and 11 nmol respectively needed to inhibit binding by 50%. The difference in slopes was explainable in terms of a recent finding that BS I exists as a mixture of five isolectins composed of two subunits having different specificities; subunit A is most specific for alpha-linked, terminal, nonreducing D-GalNAcp, but it also reacts with alpha-linked, terminal, nonreducing D-Galp, whereas subunit B tends to be more specific for terminal, nonreducing, alpha-linked D-Galp.
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Kolberg J. Isolation and partial characterization of a mitogenic lectin from Lathyrus odoratus seeds. ACTA PATHOLOGICA ET MICROBIOLOGICA SCANDINAVICA. SECTION C, IMMUNOLOGY 1978; 86C:99-104. [PMID: 716928 DOI: 10.1111/j.1699-0463.1978.tb02565.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A mitogenic lectin has been isolated from saline extract of Lathyrus odoratus seeds by (NH4)2SO4 precipitation and subsequent chromatography on DEAE-Sepharose and CM-Sepharose. The isolated lectin was almost homogeneous by SDS gel electrophoresis and gel filtration, but multiple bands were obtained on isoelectric focusing. The molecular weight, determined by gel filtration, was 37,000. Gel electrophoresis in the presence of SDS gave a molecular weight of 19,000, thus suggesting that the lectin is a dimer. It agglutinated human erythrocytes of the different ABO groups equally well. Human lymphocytes were exposed to the lectin or PHA, and the incorporation of thymidine was measured. Compared with PHA, which stimulated maximally in the concentration range of 0.25--1microgram/ml, the L. odoratus lectin had optimal activity at concentrations of 35 microgram/ml and higher.
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Rüdiger H, Rüdiger H. [Lectins, sugar-binding plant proteins]. THE SCIENCE OF NATURE - NATURWISSENSCHAFTEN 1978; 65:239-44. [PMID: 662020 DOI: 10.1007/bf00368562] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Lectins are proteins which can bind to the surfaces of animal and human cells. They are widespread in the plant and animal kingdom. Though many lectins have been isolated and characterized, and though some are extensively used as cell surface "tools", their biological role is only subject to hypotheses.
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Pereira ME, Kisailus EC, Gruezo F, Kabat EA. Immunochemical studies on the combining site of the blood group H-specific lectin 1 from Ulex europeus seeds. Arch Biochem Biophys 1978; 185:108-15. [PMID: 623479 DOI: 10.1016/0003-9861(78)90149-2] [Citation(s) in RCA: 196] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Kabat EA. Dimensions and specificities of recognition sites on lectins and antibodies. JOURNAL OF SUPRAMOLECULAR STRUCTURE 1978; 8:79-88. [PMID: 83451 DOI: 10.1002/jss.400080107] [Citation(s) in RCA: 64] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A comparison is made of the specific combining sites of a number of lectins and of antibodies with emphasis on those reacting with blood group A, B, and H determinants. The ranges of site sizes and specificities of both groups are similar both from immunochemical studies and from the limited x-ray diffraction data available.
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Goldstein IJ, Hayes CE. The lectins: carbohydrate-binding proteins of plants and animals. Adv Carbohydr Chem Biochem 1978; 35:127-340. [PMID: 356549 DOI: 10.1016/s0065-2318(08)60220-6] [Citation(s) in RCA: 1052] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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