1
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Khan F, Kaza S. Crystal structure of an L-type lectin domain from archaea. Proteins 2023; 91:456-465. [PMID: 36301308 DOI: 10.1002/prot.26440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 09/26/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022]
Abstract
The crystal structures of an L-type lectin domain from Methanocaldococcus jannaschii in apo and mannose-bound forms have been determined. A thorough investigation of L-type lectin domains from several organisms provides insight into the differences in these domains from different kingdoms of life. While the overall fold of the L-type lectin domain is conserved, differences in the lengths of the carbohydrate-binding loops and significant variations in the Mn2+ -binding site compared to the Ca2+ -binding site are observed. Furthermore, the sequence and phylogenetic analyses suggest that the archaeal L-type lectin domain is evolutionarily closer to the plant legume lectins than to its bacterial or animal counterparts. This is the first report of the biochemical, structural, sequence, and phylogenetic analyses of an L-type lectin domain from archaea and serves to enhance our understanding of the species-specific differences and evolution of L-type lectin domains.
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Affiliation(s)
- Farha Khan
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore, Karnataka, India
| | - Suguna Kaza
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore, Karnataka, India
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2
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Santos VF, Costa MS, Campina FF, Rodrigues RR, Santos ALE, Pereira FM, Batista KLR, Silva RC, Pereira RO, Rocha BAM, Coutinho HDM, Teixeira CS. The Galactose-Binding Lectin Isolated from Vatairea macrocarpa Seeds Enhances the Effect of Antibiotics Against Staphylococcus aureus-Resistant Strain. Probiotics Antimicrob Proteins 2021; 12:82-90. [PMID: 30737650 DOI: 10.1007/s12602-019-9526-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The use of natural products together with standard antimicrobial drugs has recently received more attention as a strategy to combat infectious diseases caused by multidrug-resistant (MDR) microorganisms. This study aimed to evaluate the capacity of a galactose-binding lectin from Vatairea macrocarpa seeds (VML) to modulate antibiotic activity against standard and MDR Staphylococcus aureus and Escherichia coli bacterial strains. The minimum inhibitory concentration (MIC) obtained for VML against all strains was not clinically relevant (MIC ≥ 1024 μg/mL). However, when VML was combined with the antibacterial drugs gentamicin, norfloxacin and penicillin, a significant increase in antibiotic activity was observed against S. aureus, whereas the combination of VML and norfloxacin presented decreased and, hence, antagonistic antibiotic activity against E. coli. By its inhibition of hemagglutinating activity, gentamicin (MIC = 50 mM) revealed its interaction with the carbohydrate-binding site (CBS) of VML. Using molecular docking, it was found that gentamicin interacts with residues that constitute the CBS of VML with a score of - 120.79 MDS. It is this interaction between the antibiotic and the lectin's CBS that may be responsible for the enhanced activity of gentamicin in S. aureus. Thus, our results suggest that the VML can be an effective modulating agent against S. aureus. This is the first study to report the effect of lectins as modulators of bacterial sensitivity, and as such, the outcome of this study could lay the groundwork for future research involving the use of lectins and conventional antibiotics against such infectious diseases such as community-acquired methicillin-resistant S. aureus (MRSA).
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Affiliation(s)
- Valdenice F Santos
- Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão, Campus Chapadinha S/N, Chapadinha, Maranhão, 65500-000, Brazil
| | - Maria S Costa
- Departamento de Química Biológica, Universidade Regional do Cariri, Crato, Ceará, Brazil
| | - Fábia F Campina
- Departamento de Química Biológica, Universidade Regional do Cariri, Crato, Ceará, Brazil
| | - Renato R Rodrigues
- Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão, Campus Chapadinha S/N, Chapadinha, Maranhão, 65500-000, Brazil
| | - Ana L E Santos
- Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão, Campus Chapadinha S/N, Chapadinha, Maranhão, 65500-000, Brazil
| | - Felipe M Pereira
- Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão, Campus Chapadinha S/N, Chapadinha, Maranhão, 65500-000, Brazil
| | - Karla L R Batista
- Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão, Campus Chapadinha S/N, Chapadinha, Maranhão, 65500-000, Brazil
| | - Rafael C Silva
- Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão, Campus Chapadinha S/N, Chapadinha, Maranhão, 65500-000, Brazil
| | - Raquel O Pereira
- Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão, Campus Chapadinha S/N, Chapadinha, Maranhão, 65500-000, Brazil
| | - Bruno A M Rocha
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Henrique D M Coutinho
- Departamento de Química Biológica, Universidade Regional do Cariri, Crato, Ceará, Brazil
| | - Claudener S Teixeira
- Centro de Ciências Agrárias e Ambientais, Universidade Federal do Maranhão, Campus Chapadinha S/N, Chapadinha, Maranhão, 65500-000, Brazil.
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3
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Cavada BS, Pinto-Junior VR, Oliveira MV, Osterne VJS, Lossio CF, Nascimento KS. A review of Vicieae lectins studies: End of the book or a story in the writing? Int J Biol Macromol 2021; 181:1104-1123. [PMID: 33895178 DOI: 10.1016/j.ijbiomac.2021.04.062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 12/21/2022]
Abstract
Vicieae tribe, Leguminosae family (Fabaceae), has been extensively studied. In particular, the study of lectins. The purification, physicochemical and structural characterizations of the various purified lectins and the analysis of their relevant biological activities are ongoing. In this review, several works already published about Vicieae lectins are addressed. Initially, we presented the purification protocols and the physicochemical aspects, such as specificity for carbohydrates, optimal activity in the face of variations in temperature and pH, as well metals-dependence. Following, structural characterization studies are highlighted and, finally, various biological activities already reported are summarized. Studies on lectins in almost all genera (Lathyrus, Lens, Pisum and Vicia) are considered, with the exception of Vavilovia which studies of lectins have not yet been reported. Like other leguminous lectins, Vicieae lectins present heterogeneous profiles of agglutination profiles for erythrocytes and other cells of the immune system, and glycoproteins. Most Vicieae lectins consist of two subunits, α and β, products of a single precursor protein derived from a single gene. The differences between the isoforms result from varying degrees of proteolytic processing. Along with the identification of these molecules and their characteristics, biological activities become very relevant and robust for both basic and applied research.
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Affiliation(s)
- Benildo Sousa Cavada
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Brazil.
| | - Vanir Reis Pinto-Junior
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Brazil; Departamento de Física, Universidade Federal do Ceará, Fortaleza, Brazil
| | - Messias Vital Oliveira
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Brazil
| | - Vinicius Jose Silva Osterne
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Brazil; Departamento de Nutrição, Universidade Estadual do Ceará, Fortaleza, Brazil
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4
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Cavada BS, Osterne VJS, Pinto-Junior VR, Souza LAG, Lossio CF, Silva MTL, Correia-Neto C, Oliveira MV, Correia JLA, Neco AHB, Domingos JLC, Ferreira WP, Farias GA, Nascimento KS. Molecular dynamics and binding energy analysis of Vatairea guianensis lectin: a new tool for cancer studies. J Mol Model 2020; 26:22. [PMID: 31912427 DOI: 10.1007/s00894-019-4281-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 12/19/2019] [Indexed: 12/24/2022]
Abstract
The Tn antigen is an epitope containing N-acetyl-D-galactosamine present in the extracellular matrix of some carcinoma cells in humans, and it is often used as a biomarker. Lectins are proteins capable of binding to carbohydrates and can be used as a molecular tool to recognize antigens and to differentiate cancer cells from normal cells. In this context, the present work aimed to characterize the interaction of Vatairea guianensis seed lectin with N-acetyl-D-galactosamine and the Tn antigen by molecular dynamics and molecular mechanics/Poisson-Boltzmann solvent-accessible surface area analysis. This study revealed new interacting residues not previously identified in static analysis of the three-dimensional structures of Vatairea lectins, as well as the configuration taken by the carbohydrate recognition domain, as it interacts with each ligand. During the molecular dynamics simulations, Vatairea guianensis lectin was able to bind stably to Tn antigen, which, as seen previously for other lectins, enables its use in cancer research, diagnosis, and therapy. This work further demonstrates the efficiency of bioinformatics in lectinology.
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Affiliation(s)
- Benildo Sousa Cavada
- Departmento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Mister Hull Avenue s/n. Campus do Pici, Bloco 907, Fortaleza, CE, 60455-970, Brazil.
| | - Vinicius Jose Silva Osterne
- Departmento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Mister Hull Avenue s/n. Campus do Pici, Bloco 907, Fortaleza, CE, 60455-970, Brazil
| | | | | | - Claudia Figueiredo Lossio
- Departmento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Mister Hull Avenue s/n. Campus do Pici, Bloco 907, Fortaleza, CE, 60455-970, Brazil
| | | | - Corneville Correia-Neto
- Departmento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Mister Hull Avenue s/n. Campus do Pici, Bloco 907, Fortaleza, CE, 60455-970, Brazil
| | - Messias Vital Oliveira
- Departmento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Mister Hull Avenue s/n. Campus do Pici, Bloco 907, Fortaleza, CE, 60455-970, Brazil
| | - Jorge Luis Almeida Correia
- Departmento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Mister Hull Avenue s/n. Campus do Pici, Bloco 907, Fortaleza, CE, 60455-970, Brazil
| | - Antonio Hadson Bastos Neco
- Departmento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Mister Hull Avenue s/n. Campus do Pici, Bloco 907, Fortaleza, CE, 60455-970, Brazil
| | | | | | - Gil Aquino Farias
- Departmento de Fisica, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Kyria Santiago Nascimento
- Departmento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Mister Hull Avenue s/n. Campus do Pici, Bloco 907, Fortaleza, CE, 60455-970, Brazil.
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5
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Nascimento KS, Silva MTL, Oliveira MV, Lossio CF, Pinto-Junior VR, Osterne VJS, Cavada BS. Dalbergieae lectins: A review of lectins from species of a primitive Papilionoideae (leguminous) tribe. Int J Biol Macromol 2019; 144:509-526. [PMID: 31857177 DOI: 10.1016/j.ijbiomac.2019.12.117] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/06/2019] [Accepted: 12/14/2019] [Indexed: 01/24/2023]
Abstract
Lectins are (glyco)proteins capable of reversibly binding to specific carbohydrates, thus having various functions and applications. Plant lectins are the best studied, and the Leguminoseae family is highlighted in a number of published works, especially species of the Papilionoideae subfamily. Dalbergieae is one of the tribes in this subfamily comprising 49 genera and over 1300 species. From this tribe, about 26 lectins were studied, among which we can highlight the Arachis hypogaea lectin, widely used in cancer studies. Dalbergieae lectins demonstrate various carbohydrate specificities and biological activities including anti-inflammatory, vasorelaxant, nociceptive, antibacterial, antiviral among others. Structurally, these lectins are quite similar in their three-dimensional folding but present significant differences in oligomerization patterns and in the conservation of carbohydrate-recognition domain. Despite the existence of structural data from some lectins, only sparse literature has reported on this tribe's diversity, not to mention the range of biological effects, determined through specific assays. Therefore, this work will review the most important studies on Dalbergieae lectins and their potential biomedical applications.
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Affiliation(s)
- Kyria Santiago Nascimento
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará (UFC), Fortaleza, Ceará, Brazil.
| | - Mayara Torquato Lima Silva
- Departamento de Bioquímica, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Messias Vital Oliveira
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará (UFC), Fortaleza, Ceará, Brazil
| | - Claudia Figueiredo Lossio
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará (UFC), Fortaleza, Ceará, Brazil
| | | | - Vinicius Jose Silva Osterne
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará (UFC), Fortaleza, Ceará, Brazil
| | - Benildo Sousa Cavada
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará (UFC), Fortaleza, Ceará, Brazil.
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6
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Neco AHB, Pinto-Junior VR, Araripe DA, Santiago MQ, Osterne VJS, Lossio CF, Nobre CAS, Oliveira MV, Silva MTL, Martins MGQ, Cajazeiras JB, Marques GFO, Costa DR, Nascimento KS, Assreuy AMS, Cavada BS. Structural analysis, molecular docking and molecular dynamics of an edematogenic lectin from Centrolobium microchaete seeds. Int J Biol Macromol 2018; 117:124-133. [DOI: 10.1016/j.ijbiomac.2018.05.166] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/11/2018] [Accepted: 05/23/2018] [Indexed: 12/30/2022]
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7
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Marques GF, Osterne VJ, Almeida LM, Oliveira MV, Brizeno LA, Pinto-Junior VR, Santiago MQ, Neco AH, Mota MR, Souza LA, Nascimento KS, Pires AF, Cavada BS, Assreuy AM. Contribution of the carbohydrate-binding ability of Vatairea guianensis lectin to induce edematogenic activity. Biochimie 2017. [DOI: 10.1016/j.biochi.2017.06.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Araripe DA, Pinto-Junior VR, Neco AHB, Santiago MQ, Osterne VJS, Pires AF, Lossio CF, Martins MGQ, Correia JLA, Benevides RG, Leal RB, Assreuy AMS, Nascimento KS, Cavada BS. Partial characterization and immobilization in CNBr-activated Sepharose of a native lectin from Platypodium elegans seeds (PELa) and comparative study of edematogenic effect with the recombinant form. Int J Biol Macromol 2017; 102:323-330. [DOI: 10.1016/j.ijbiomac.2017.03.193] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 03/30/2017] [Accepted: 03/31/2017] [Indexed: 11/28/2022]
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9
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Lossio CF, Moreira CG, Amorim RMF, Nobre CS, Silva MTL, Neto CC, Pinto-Junior VR, Silva IB, Campos J, Assreuy AMS, Cavada BS, Nascimento KS. Lectin from Canavalia villosa seeds: A glucose/mannose-specific protein and a new tool for inflammation studies. Int J Biol Macromol 2017; 105:272-280. [PMID: 28693997 DOI: 10.1016/j.ijbiomac.2017.07.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 07/06/2017] [Accepted: 07/06/2017] [Indexed: 02/04/2023]
Abstract
With important carbohydrate binding properties, lectins are proteins able to decipher the glycocode, and as such, they can be used in bioassays involving cell-cell communication, protein targeting, inflammation, and hypernociception, among others. In this study, a new glucose/mannose-specific lectin from Canavalia villosa seeds (Cvill) was isolated by a single affinity chromatography step in a Sephadex® G-50 column, with a purification yield of 19.35mg of lectin per gram of powdered seed. Analysis of intact protein by mass spectrometry showed the lectin is composed of three polypeptide chains, including a 25.6kDa α chain, 12.9KDa β, and 12.6 KDa γ fragments, similar to the profile of ConA-like glucose/mannose-specific lectins. Partial sequence of the protein was obtained by MS-MALDI TOF/TOF covering 41.7% of its primary structure. Cvill presented sugar specificity to d-glucose, α-methyl-d-mannoside, d-mannose, and glycoproteins fetuin and ovoalbumin. The lectin characterization showed that Cvill presents high stability within a broad range of pH and temperature, also showing average toxicity against Artemia nauplii. The proinflammatory effect of Cvill was observed by induction of paw edema and hypernociception in mice, with the participation of the carbohydrate binding site, showing its potential to be used as tool in inflammation studies.
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Affiliation(s)
- Claudia F Lossio
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Cleane G Moreira
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Renata M F Amorim
- Laboratório de Fisio-Farmacologia da Inflamação (LAFFIN), Instituto de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, CE, Brazil
| | - Clareane S Nobre
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Mayara T L Silva
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Cornevile C Neto
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Vanir R Pinto-Junior
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Ivanice B Silva
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Julia Campos
- Centro de Tecnologias Estratégicas do Nordeste (CETENE), Recife, PE, Brazil
| | - Ana Maria S Assreuy
- Laboratório de Fisio-Farmacologia da Inflamação (LAFFIN), Instituto de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, CE, Brazil
| | - Benildo S Cavada
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, CE, Brazil.
| | - Kyria S Nascimento
- Laboratório de Moléculas Biologicamente Ativas (Biomol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, CE, Brazil.
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10
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Pinto-Junior VR, Osterne VJS, Santiago MQ, Correia JLA, Pereira-Junior FN, Leal RB, Pereira MG, Chicas LS, Nagano CS, Rocha BAM, Silva-Filho JC, Ferreira WP, Rocha CRC, Nascimento KS, Assreuy AMS, Cavada BS. Structural studies of a vasorelaxant lectin from Dioclea reflexa Hook seeds: Crystal structure, molecular docking and dynamics. Int J Biol Macromol 2017; 98:12-23. [DOI: 10.1016/j.ijbiomac.2017.01.092] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/16/2017] [Accepted: 01/20/2017] [Indexed: 01/15/2023]
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11
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Lubkowski J, Durbin SV, Silva MC, Farnsworth D, Gildersleeve JC, Oliva MLV, Wlodawer A. Structural analysis and unique molecular recognition properties of a Bauhinia forficata lectin that inhibits cancer cell growth. FEBS J 2017; 284:429-450. [PMID: 27973758 PMCID: PMC6257985 DOI: 10.1111/febs.13989] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 11/29/2016] [Accepted: 12/07/2016] [Indexed: 11/27/2022]
Abstract
Lectins have been used at length for basic research and clinical applications. New insights into the molecular recognition properties enhance our basic understanding of carbohydrate-protein interactions and aid in the design/development of new lectins. In this study, we used a combination of cell-based assays, glycan microarrays, and X-ray crystallography to evaluate the structure and function of the recombinant Bauhinia forficata lectin (BfL). The lectin was shown to be cytostatic for several cancer cell lines included in the NCI-60 panel; in particular, it inhibited growth of melanoma cancer cells (LOX IMVI) by over 95%. BfL is dimeric in solution and highly specific for binding of oligosaccharides and glycopeptides with terminal N-acetylgalactosamine (GalNAc). BfL was found to have especially strong binding (apparent Kd = 0.5-1.0 nm) to the tumor-associated Tn antigen. High-resolution crystal structures were determined for the ligand-free lectin, as well as for its complexes with three Tn glycopeptides, globotetraose, and the blood group A antigen. Extensive analysis of the eight crystal structures and comparison to structures of related lectins revealed several unique features of GalNAc recognition. Of special note, the carboxylate group of Glu126, lining the glycan-binding pocket, forms H-bonds with both the N-acetyl of GalNAc and the peptide amido group of Tn antigens. Stabilization provided by Glu126 is described here for the first time for any GalNAc-specific lectin. Taken together, the results provide new insights into the molecular recognition of carbohydrates and provide a structural understanding that will enable rational engineering of BfL for a variety of applications. DATABASE Structural data are available in the PDB under the accession numbers 5T50, 5T52, 5T55, 5T54, 5T5L, 5T5J, 5T5P, and 5T5O.
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MESH Headings
- Acetylgalactosamine/chemistry
- Acetylgalactosamine/metabolism
- Antigens, Tumor-Associated, Carbohydrate/chemistry
- Antigens, Tumor-Associated, Carbohydrate/metabolism
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Bauhinia/chemistry
- Binding Sites
- Blood Group Antigens/chemistry
- Blood Group Antigens/metabolism
- Cell Line, Tumor
- Cloning, Molecular
- Crystallography, X-Ray
- Dimerization
- Escherichia coli/genetics
- Escherichia coli/metabolism
- Gene Expression
- Globosides/chemistry
- Globosides/metabolism
- Glycopeptides/chemistry
- Glycopeptides/metabolism
- Humans
- Hydrogen Bonding
- Kinetics
- Models, Molecular
- Oligosaccharides/chemistry
- Oligosaccharides/metabolism
- Plant Extracts/chemistry
- Plant Lectins/chemistry
- Plant Lectins/isolation & purification
- Plant Lectins/pharmacology
- Protein Binding
- Protein Interaction Domains and Motifs
- Protein Structure, Secondary
- Recombinant Proteins/chemistry
- Recombinant Proteins/genetics
- Recombinant Proteins/metabolism
- Substrate Specificity
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Affiliation(s)
- Jacek Lubkowski
- Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Sarah V. Durbin
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Mariana C.C. Silva
- Universidade Federal de São Paulo-Escola Paulista de Medicina, Rua Três de Maio, 100, 04044-020 São Paulo, SP, Brazil
| | - David Farnsworth
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Jeffrey C. Gildersleeve
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Maria Luiza V. Oliva
- Universidade Federal de São Paulo-Escola Paulista de Medicina, Rua Três de Maio, 100, 04044-020 São Paulo, SP, Brazil
| | - Alexander Wlodawer
- Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
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12
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Haji-Ghassemi O, Gilbert M, Spence J, Schur MJ, Parker MJ, Jenkins ML, Burke JE, van Faassen H, Young NM, Evans SV. Molecular Basis for Recognition of the Cancer Glycobiomarker, LacdiNAc (GalNAc[β1→4]GlcNAc), by Wisteria floribunda Agglutinin. J Biol Chem 2016; 291:24085-24095. [PMID: 27601469 DOI: 10.1074/jbc.m116.750463] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Indexed: 01/10/2023] Open
Abstract
Aberrant glycosylation and the overexpression of specific carbohydrate epitopes is a hallmark of many cancers, and tumor-associated oligosaccharides are actively investigated as targets for immunotherapy and diagnostics. Wisteria floribunda agglutinin (WFA) is a legume lectin that recognizes terminal N-acetylgalactosaminides with high affinity. WFA preferentially binds the disaccharide LacdiNAc (β-d-GalNAc-[1→4]-d-GlcNAc), which is associated with tumor malignancy in leukemia, prostate, pancreatic, ovarian, and liver cancers and has shown promise in cancer glycobiomarker detection. The mechanism of specificity for WFA recognition of LacdiNAc is not fully understood. To address this problem, we have determined affinities and structure of WFA in complex with GalNAc and LacdiNAc. Affinities toward Gal, GalNAc, and LacdiNAc were measured via surface plasmon resonance, yielding KD values of 4.67 × 10-4 m, 9.24 × 10-5 m, and 5.45 × 10-6 m, respectively. Structures of WFA in complex with LacdiNAc and GalNAc have been determined to 1.80-2.32 Å resolution. These high resolution structures revealed a hydrophobic groove complementary to the GalNAc and, to a minor extent, to the back-face of the GlcNAc sugar ring. Remarkably, the contribution of this small hydrophobic surface significantly increases the observed affinity for LacdiNAc over GalNAc. Tandem MS sequencing confirmed the presence of two isolectin forms in commercially available WFA differing only in the identities of two amino acids. Finally, the WFA carbohydrate binding site is similar to a homologous lectin isolated from Vatairea macrocarpa in complex with GalNAc, which, unlike WFA, binds not only αGalNAc but also terminal Ser/Thr O-linked αGalNAc (Tn antigen).
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Affiliation(s)
- Omid Haji-Ghassemi
- From the Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8P 3P6, Canada and
| | - Michel Gilbert
- Human Health Therapeutics, National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Jenifer Spence
- From the Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8P 3P6, Canada and
| | - Melissa J Schur
- Human Health Therapeutics, National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Matthew J Parker
- From the Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8P 3P6, Canada and
| | - Meredith L Jenkins
- From the Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8P 3P6, Canada and
| | - John E Burke
- From the Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8P 3P6, Canada and
| | - Henk van Faassen
- Human Health Therapeutics, National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada
| | - N Martin Young
- Human Health Therapeutics, National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Stephen V Evans
- From the Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8P 3P6, Canada and
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