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da Silva Neto JX, Dias LP, Lopes de Souza LA, Silva da Costa HP, Vasconcelos IM, Pereira ML, de Oliveira JTA, Cardozo CJP, Gonçalves Moura LFW, de Sousa JS, Carneiro RF, Lopes TDP, Bezerra de Sousa DDO. Insights into the structure and mechanism of action of the anti-candidal lectin Mo-CBP2 and evaluation of its synergistic effect and antibiofilm activity. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Nubi T, Adewole TS, Agunbiade TO, Osukoya OA, Kuku A. Purification and erythrocyte-membrane perturbing activity of a ketose-specific lectin from Moringa oleifera seeds. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2021; 31:e00650. [PMID: 34258240 PMCID: PMC8253949 DOI: 10.1016/j.btre.2021.e00650] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 05/26/2021] [Accepted: 06/16/2021] [Indexed: 12/17/2022]
Abstract
This study purified a hemagglutinating protein (MoL) from Moringa oleifera seed, and investigated its hemolytic activity. Molecular weight and stability of MoL were also determined. Modification of some amino acid residues was carried out and the effect on MoL hemagglutinating activity determined. Other investigated parameters are the effects of temperature, concentration, incubation period, pH, and sugars on the protein's hemagglutinating and hemolytic activities. The native and subunit molecular weights were estimated as 30 and 27.5 kDa respectively. Hemagglutinating activity of MoL was slightly inhibited by fructose and sucrose, stable at temperature up to 90°C and within pH range of 2-4. Modification of tryptophan and arginine residues resulted in partial loss of hemagglutinating activity. The hemolytic activity of MoL was concentration, temperature, pH, and time-dependent. The study concluded that MoL showed hemolytic (membrane-perturbing) activity in moderate acidic conditions. This suggests its potential exploitation in improved intracellular delivery of bioactive compounds.
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Affiliation(s)
- Tolulope Nubi
- Department of Biochemistry and Molecular Biology, Obafemi Awolowo University Ile-Ife, PMB 13, Nigeria
| | | | | | | | - Adenike Kuku
- Department of Biochemistry and Molecular Biology, Obafemi Awolowo University Ile-Ife, PMB 13, Nigeria
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Sousa AMP, Salles HO, Oliveira HDD, Souza BBPD, Cardozo Filho JDL, Sifuentes DN, Prates MV, Bloch Junior C, Bemquerer MP, Egito ASD. Mo-HLPs: New flocculating agents identified from Moringa oleifera seeds belong to the hevein-like peptide family. J Proteomics 2020; 217:103692. [PMID: 32068186 DOI: 10.1016/j.jprot.2020.103692] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 02/08/2020] [Accepted: 02/14/2020] [Indexed: 12/25/2022]
Abstract
Cationic peptides found in Moringa oleifera seeds belong to different protein families and are described as the main flocculating agents of the species. In this study we report the identification and isolation of four new flocculant peptides, called Mo-HLPs 1-4, belonging to the family of hevein-like peptides, previously only known for their members' antimicrobial activity. Purification of the peptides followed two sequential membrane ultrafiltration steps and separation by reverse-phase liquid chromatography. Proteomic analyses showed that Mo-HLPs are extremely basic (pI >10) cysteine-rich molecules with molecular masses between 4.5 and 4.8 kDa and with a highly conserved chitin-binding domain. Searches in BLAST revealed high similarity of Mo-HLPs with hevein and other hevein-like peptides and 90% identity with morintides, which are members of the 8C-hevein-like subfamily found in M. oleifera leaves. Mo-HLPs microflocculation assays showed distinct coagulation/flocculation efficiencies, promoting turbidity reduction levels between 67 and 89% in synthetic turbid water. Activity variations were attributed to the substitution of some amino acids among the isoforms, which may have altered the final net charge of the molecules. The identification of Mo-HLPs represents the discovery of a new group of cationic peptides involved in the flocculation properties of M. oleifera seeds. SIGNIFICANCE: The study reveals the presence of hevein-like peptides in Moringa oleifera seeds. It is reported for the first time that members of this family have properties to act as flocculating agents of importance for water treatment processes. The identification of these peptides as well as new functional assignment broadens the horizon for speculation on new species which could act as sources of green coagulants for sustainable water treatment, and contributes to the knowledge about occurrence, distribution, molecular and active diversity of peptides belonging to the hevein-like family.
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Affiliation(s)
- Ana Márjory Paiva Sousa
- Rede Nordeste de Biotecnologia-RENORBIO, Universidade Estadual do Ceará, Campus do Itaperi, CEP: 60714-903 Fortaleza, CE, Brazil; Laboratório de Bioquímica, Embrapa Caprinos e Ovinos, Estrada Sobral-Groaíras, Km 4, CP 71, CEP: 62010-970 Sobral, CE, Brazil.
| | - Hévila Oliveira Salles
- Laboratório de Bioquímica, Embrapa Caprinos e Ovinos, Estrada Sobral-Groaíras, Km 4, CP 71, CEP: 62010-970 Sobral, CE, Brazil
| | - Hermógenes David de Oliveira
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici Prof. Prisco Bezerra, CEP: 60440-900 Fortaleza, CE, Brazil
| | - Beatriz Blenda Pinheiro de Souza
- Laboratório de Espectrometria de Massa, Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, CEP: 70770-901 Brasília, DF, Brazil
| | - José de Lima Cardozo Filho
- Laboratório de Espectrometria de Massa, Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, CEP: 70770-901 Brasília, DF, Brazil
| | - Daniel Nogoceke Sifuentes
- Laboratório de Espectrometria de Massa, Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, CEP: 70770-901 Brasília, DF, Brazil
| | - Maura Vianna Prates
- Laboratório de Espectrometria de Massa, Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, CEP: 70770-901 Brasília, DF, Brazil
| | - Carlos Bloch Junior
- Laboratório de Espectrometria de Massa, Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, CEP: 70770-901 Brasília, DF, Brazil
| | - Marcelo Porto Bemquerer
- Laboratório de Espectrometria de Massa, Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica, CEP: 70770-901 Brasília, DF, Brazil
| | - Antonio Silvio do Egito
- Laboratório de Bioquímica, Embrapa Caprinos e Ovinos, Estrada Sobral-Groaíras, Km 4, CP 71, CEP: 62010-970 Sobral, CE, Brazil
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Agrawal SB, Ghosh D, Gaikwad SM. Investigation of structural and saccharide binding transitions of Bauhinia purpurea and Wisteria floribunda lectins. Arch Biochem Biophys 2019; 662:134-142. [DOI: 10.1016/j.abb.2018.12.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/19/2018] [Accepted: 12/03/2018] [Indexed: 11/28/2022]
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de Medeiros MLS, de Moura MC, Napoleão TH, Paiva PMG, Coelho LCBB, Bezerra ACDS, da Silva MDC. Nematicidal activity of a water soluble lectin from seeds of Moringa oleifera. Int J Biol Macromol 2017; 108:782-789. [PMID: 29122715 DOI: 10.1016/j.ijbiomac.2017.10.167] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 10/23/2017] [Accepted: 10/24/2017] [Indexed: 01/17/2023]
Abstract
Gastrointestinal nematodes are the major cause of animal diseases, and the indiscriminate use of synthetic anthelmintic contributes to the development of drug resistance. Natural bioproducts are noteworthy since they have proved to be promising for alternative antiparasitic therapies. This study evaluated the in vitro effect of WSMoL (water soluble Moringa oleifera lectin) on hatching of eggs and on the development of early-stage larvae of gastrointestinal nematodes from naturally infected goats. In addition, the interference of WSMoL on activity of proteases was determined and the affinity of the lectin for glycosylated molecules of these parasites was investigated using fluorescein isothiocyanate (FITC)-labeled WSMoL. WSMoL at 250μgmL-1 interfered on hatching of eggs (40.4% of not hatched eggs; p=0.018), and on larval development (stages L1-L3) (IC50 of 78.22μgmL-1). The activity of secreted proteases showed a significant increase in the presence of WSMoL (307.14U/mg-1031U/mg). FITC-labeled WSMoL recognized embryonic egg content and larval content after hatching, which suggests that WSMoL interact with intestinal glycoconjugate receptors in the embryo, as well as in cuticle of the larvae.
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Affiliation(s)
- Mário Luan Silva de Medeiros
- Departamento de Ciências Biomédicas, Faculdade de Ciências da Saúde, Universidade do Estado do Rio Grande do Norte, Atirador Miguel Antônio da Silva Neto, s/n, Aeroporto, 59607-360, Mossoró, Rio Grande do Norte, Brazil.
| | - Maiara Celine de Moura
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Professor Morais Rego, s/n, Cidade Universitária, 50670-901, Recife, Pernambuco, Brazil.
| | - Thiago Henrique Napoleão
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Professor Morais Rego, s/n, Cidade Universitária, 50670-901, Recife, Pernambuco, Brazil.
| | - Patrícia Maria Guedes Paiva
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Professor Morais Rego, s/n, Cidade Universitária, 50670-901, Recife, Pernambuco, Brazil.
| | - Luana Cassandra Breitenbach Barroso Coelho
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Professor Morais Rego, s/n, Cidade Universitária, 50670-901, Recife, Pernambuco, Brazil.
| | - Ana Carla Diógenes Suassuna Bezerra
- Departamento de Biociências, Centro de Ciências Biológicas e da Saúde, Universidade Federal Rural do Semi-Árido, Av. Francisco Mota, 572, Costa e Silva, 59625-900, Mossoró, Rio Grande do Norte, Brazil.
| | - Michele Dalvina Correia da Silva
- Departamento de Biociências, Centro de Ciências Biológicas e da Saúde, Universidade Federal Rural do Semi-Árido, Av. Francisco Mota, 572, Costa e Silva, 59625-900, Mossoró, Rio Grande do Norte, Brazil.
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Neto JXS, Pereira ML, Oliveira JTA, Rocha-Bezerra LCB, Lopes TDP, Costa HPS, Sousa DOB, Rocha BAM, Grangeiro TB, Freire JEC, Monteiro-Moreira ACO, Lobo MDP, Brilhante RSN, Vasconcelos IM. A Chitin-binding Protein Purified from Moringa oleifera Seeds Presents Anticandidal Activity by Increasing Cell Membrane Permeability and Reactive Oxygen Species Production. Front Microbiol 2017. [PMID: 28634471 PMCID: PMC5459921 DOI: 10.3389/fmicb.2017.00980] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Candida species are opportunistic pathogens that infect immunocompromised and/or immunosuppressed patients, particularly in hospital facilities, that besides representing a significant threat to health increase the risk of mortality. Apart from echinocandins and triazoles, which are well tolerated, most of the antifungal drugs used for candidiasis treatment can cause side effects and lead to the development of resistant strains. A promising alternative to the conventional treatments is the use of plant proteins. M. oleifera Lam. is a plant with valuable medicinal properties, including antimicrobial activity. This work aimed to purify a chitin-binding protein from M. oleifera seeds and to evaluate its antifungal properties against Candida species. The purified protein, named Mo-CBP2, represented about 0.2% of the total seed protein and appeared as a single band on native PAGE. By mass spectrometry, Mo-CBP2 presented 13,309 Da. However, by SDS-PAGE, Mo-CBP2 migrated as a single band with an apparent molecular mass of 23,400 Da. Tricine-SDS-PAGE of Mo-CBP2 under reduced conditions revealed two protein bands with apparent molecular masses of 7,900 and 4,600 Da. Altogether, these results suggest that Mo-CBP2 exists in different oligomeric forms. Moreover, Mo-CBP2 is a basic glycoprotein (pI 10.9) with 4.1% (m/m) sugar and it did not display hemagglutinating and hemolytic activities upon rabbit and human erythrocytes. A comparative analysis of the sequence of triptic peptides from Mo-CBP2 in solution, after LC-ESI-MS/MS, revealed similarity with other M. oleifera proteins, as the 2S albumin Mo-CBP3 and flocculating proteins, and 2S albumins from different species. Mo-CBP2 possesses in vitro antifungal activity against Candida albicans, C. parapsilosis, C. krusei, and C. tropicalis, with MIC50 and MIC90 values ranging between 9.45–37.90 and 155.84–260.29 μM, respectively. In addition, Mo-CBP2 (18.90 μM) increased the cell membrane permeabilization and reactive oxygen species production in C. albicans and promoted degradation of circular plasmid DNA (pUC18) from Escherichia coli. The data presented in this study highlight the potential use of Mo-CBP2 as an anticandidal agent, based on its ability to inhibit Candida spp. growth with apparently low toxicity on mammalian cells.
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Affiliation(s)
- João X S Neto
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | - Mirella L Pereira
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | - Jose T A Oliveira
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | - Lady C B Rocha-Bezerra
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | - Tiago D P Lopes
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | - Helen P S Costa
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | - Daniele O B Sousa
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | - Bruno A M Rocha
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | | | - José E C Freire
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
| | | | - Marina D P Lobo
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil.,School of Pharmacy, University of FortalezaFortaleza, Brazil
| | - Raimunda S N Brilhante
- Department of Pathology and Legal Medicine, Federal University of CearaFortaleza, Brazil
| | - Ilka M Vasconcelos
- Department of Biochemistry and Molecular Biology, Federal University of CearaFortaleza, Brazil
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Abstract
Moringa oleifera is a rich source of bioactive compounds and is widely used in traditional medicine and food for its nutritional value; however, the protein and peptide components of different tissues are rarely discussed. Here, we describe the first investigation of M. oleifera proteomes using mass spectrometry and bioinformatics methods. We aimed to elucidate the protein profiles of M. oleifera leaves, stem, bark, and root. Totally 202 proteins were identified from four vegetative organs. We identified 101 proteins from leaves, 51 from stem, 94 from bark and 67 from root, finding that only five proteins existed in both four vegetative parts. The calculated pI of most of the proteins is distributed in 5-10 and the molecular weight distributed below 100 kDa. Functional classification analysis revealed that proteins which are involved in catalytic activities are the most abundant both in leaves, stem, bark and root. Identification of several heat shock proteins in four vegetative tissues might be adaptive for resistance to high temperature environmental stresses of tropical or subtropical areas. Some enzymes involved in antioxidant processes were also identified in M. oleifera leaves, stem, bark and root. Among the four tissues studies here, leaves protein content and molecular diversity were the highest. The identification of the flocculating protein MO2.1 and MO2.2 in the bark and root provides clue to clarify the antimicrobial molecular mechanisms of root and bark. This study provides information on the protein compositions of M. oleifera vegetative tissues that will be beneficial for potential drug and food supplement development and plant physiology research.
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Paula PC, Sousa DOB, Oliveira JTA, Carvalho AFU, Alves BGT, Pereira ML, Farias DF, Viana MP, Santos FA, Morais TC, Vasconcelos IM. A Protein Isolate from Moringa oleifera Leaves Has Hypoglycemic and Antioxidant Effects in Alloxan-Induced Diabetic Mice. Molecules 2017; 22:E271. [PMID: 28208654 PMCID: PMC6155657 DOI: 10.3390/molecules22020271] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 02/07/2017] [Accepted: 02/09/2017] [Indexed: 01/24/2023] Open
Abstract
Moringa oleifera has been used in traditional medicine to treat diabetes. However, few studies have been conducted to relate its antidiabetic properties to proteins. In this study, a leaf protein isolate was obtained from M. oleifera leaves, named Mo-LPI, and the hypoglycemic and antioxidant effects on alloxan-induced diabetic mice were assessed. Mo-LPI was obtained by aqueous extraction, ammonium sulphate precipitation and dialysis. The electrophoresis profile and proteolytic hydrolysis confirmed its protein nature. Mo-LPI showed hemagglutinating activity, cross-reaction with anti-insulin antibodies and precipitation after zinc addition. Single-dose intraperitoneal (i.p.) administration of Mo-LPI (500 mg/kg·bw) reduced the blood glucose level (reductions of 34.3%, 60.9% and 66.4% after 1, 3 and 5 h, respectively). The effect of Mo-LPI was also evidenced in the repeated dose test with a 56.2% reduction in the blood glucose level on the 7th day after i.p. administration. Mo-LPI did not stimulate insulin secretion in diabetic mice. Mo-LPI was also effective in reducing the oxidative stress in diabetic mice by a decrease in malondialdehyde level and increase in catalase activity. Mo-LPI (2500 mg/kg·bw) did not cause acute toxicity to mice. Mo-LPI is a promising alternative or complementary agent to treat diabetes.
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Affiliation(s)
- Paulo C Paula
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
| | - Daniele O B Sousa
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
| | - Jose T A Oliveira
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
| | - Ana F U Carvalho
- Department of Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
| | - Bella G T Alves
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
| | - Mirella L Pereira
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
| | - Davi F Farias
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
- Department of Molecular Biology, Federal University of Paraiba, Joao Pessoa 58051-900, Brazil.
| | - Martonio P Viana
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
| | - Flavia A Santos
- Department of Physiology and Pharmacology, Federal University of Ceara, Fortaleza 60430-160, Brazil.
| | - Talita C Morais
- Department of Physiology and Pharmacology, Federal University of Ceara, Fortaleza 60430-160, Brazil.
| | - Ilka M Vasconcelos
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza 60440-900, Brazil.
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Anudeep S, Prasanna VK, Adya SM, Radha C. Characterization of soluble dietary fiber from Moringa oleifera seeds and its immunomodulatory effects. Int J Biol Macromol 2016; 91:656-62. [DOI: 10.1016/j.ijbiomac.2016.06.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/01/2016] [Accepted: 06/06/2016] [Indexed: 12/01/2022]
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Dasgupta S, Kumar Gunda NS, Mitra SK. Evaluation of the antimicrobial activity of Moringa oleifera seed extract as a sustainable solution for potable water. RSC Adv 2016. [DOI: 10.1039/c6ra04011j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
We have provided a detailed antimicrobial study of the seed extract ofMoringa oleifera, a common medicinal plant.
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Affiliation(s)
- Saumyadeb Dasgupta
- Micro & Nano-scale Transport Laboratory
- Department of Mechanical Engineering
- Lassonde School of Engineering
- York University
- Toronto
| | - Naga Siva Kumar Gunda
- Micro & Nano-scale Transport Laboratory
- Department of Mechanical Engineering
- Lassonde School of Engineering
- York University
- Toronto
| | - Sushanta K. Mitra
- Micro & Nano-scale Transport Laboratory
- Department of Mechanical Engineering
- Lassonde School of Engineering
- York University
- Toronto
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Vallabha VS, Tapal A, Sukhdeo SV, K G, Tiku PK. Effect of arginine : lysine ratio in free amino acid and protein form onl-NAME induced hypertension in hypercholesterolemic Wistar rats. RSC Adv 2016. [DOI: 10.1039/c6ra13632j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Arginine : lysine in the ratio of 5 : 1 plays an important role in cardiovascular diseases, especially as a nitric oxide precursor leading to vasodilation and inhibiting angiotensin-I converting enzyme in renin angiotensin system.
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Affiliation(s)
- Vishwanath S. Vallabha
- Department of Protein Chemistry and Technology
- CSIR-Central Food Technological Research Institute
- Mysuru-570 020
- India
| | - Arun Tapal
- Department of Protein Chemistry and Technology
- CSIR-Central Food Technological Research Institute
- Mysuru-570 020
- India
| | - Shinde Vijay Sukhdeo
- Animal House Facility
- CSIR-Central Food Technological Research Institute
- Mysuru-570 020
- India
| | - Govindaraju K
- Department of Protein Chemistry and Technology
- CSIR-Central Food Technological Research Institute
- Mysuru-570 020
- India
| | - Purnima Kaul Tiku
- Department of Protein Chemistry and Technology
- CSIR-Central Food Technological Research Institute
- Mysuru-570 020
- India
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Crystal structure of mature 2S albumin from Moringa oleifera seeds. Biochem Biophys Res Commun 2015; 468:365-71. [PMID: 26505799 DOI: 10.1016/j.bbrc.2015.10.087] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 10/17/2015] [Indexed: 11/21/2022]
Abstract
2S albumins, the seed storage proteins, are the primary sources of carbon and nitrogen and are involved in plant defense. The mature form of Moringa oleifera (M. oleifera), a chitin binding protein isoform 3-1 (mMo-CBP3-1) a thermostable antifungal, antibacterial, flocculating 2S albumin is widely used for the treatment of water and is potentially interesting for the development of both antifungal drugs and transgenic crops. The crystal structure of mMo-CBP3-1 determined at 1.7 Å resolution demonstrated that it is comprised of two proteolytically processed α-helical chains, stabilized by four disulfide bridges that is stable, resistant to pH changes and has a melting temperature (TM) of approximately 98 °C. The surface arginines and the polyglutamine motif are the key structural factors for the observed flocculating, antibacterial and antifungal activities. This represents the first crystal structure of a 2S albumin and the model of the pro-protein indicates the structural changes that occur upon formation of mMo-CBP3-1 and determines the structural motif and charge distribution patterns for the diverse observed activities.
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Sharma U, Katre UV, Suresh CG. Crystal structure of a plant albumin from Cicer arietinum (chickpea) possessing hemopexin fold and hemagglutination activity. PLANTA 2015; 241:1061-1073. [PMID: 25559942 DOI: 10.1007/s00425-014-2236-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Accepted: 12/21/2014] [Indexed: 06/04/2023]
Abstract
Crystal structure of a reported PA2 albumin from Cicer arietinum shows that it belongs to hemopexin fold family, has four beta-propeller motifs and possesses hemagglutination activity, making it different from known legume lectins. A plant albumin (PA2) from Cicer arietinum, presumably a lectin (CAL) owing to its hemagglutination activity which is inhibited by complex sugars as well as glycoproteins such as fetuin, desialylated fetuin and fibrinogen. The three-dimensional structure of this homodimeric protein has been determined using X-ray crystallography at 2.2 Å in two crystal forms: orthorhombic (P21212) and trigonal (P3). The structure determined using molecular replacement method and refined in orthorhombic crystal form reached R-factors R free 22.6 % and R work 18.2 % and in trigonal form had 22.3 and 17.9 % in the resolution range of 20.0-2.2 and 35.3-2.2 Å, respectively. Interestingly, unlike the known legume lectin fold, the structure of this homodimeric hemagglutinin belonged to hemopexin fold that consisted of four-bladed β-propeller architecture. Each subunit has a central cavity forming a channel, inside of which is lined with hydrophobic residues. The channel also bears binding sites for ligands such as calcium, sodium and chloride ions, iodine atom in the case of iodine derivative and water molecules. However, none of these ligands seem important for the sugar recognition. No monosaccharide sugar specificity could be detected using hemagglutination inhibition. Chemical modification studies identified a potential sugar-binding site per subunit molecule. Comparison of C-alpha atom positions in subunit structures showed that the deviations between the two crystal forms were more with respect to blades I and IV. Differences also existed between subunits in two forms in terms of type and site of ligand binding.
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Affiliation(s)
- Urvashi Sharma
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Pune, 411008, India
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Freire JEC, Vasconcelos IM, Moreno FBMB, Batista AB, Lobo MDP, Pereira ML, Lima JPMS, Almeida RVM, Sousa AJS, Monteiro-Moreira ACO, Oliveira JTA, Grangeiro TB. Mo-CBP3, an antifungal chitin-binding protein from Moringa oleifera seeds, is a member of the 2S albumin family. PLoS One 2015; 10:e0119871. [PMID: 25789746 PMCID: PMC4366206 DOI: 10.1371/journal.pone.0119871] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 02/03/2015] [Indexed: 11/19/2022] Open
Abstract
Mo-CBP3 is a chitin-binding protein from M. oleifera seeds that inhibits the germination and mycelial growth of phytopathogenic fungi. This protein is highly thermostable and resistant to pH changes, and therefore may be useful in the development of new antifungal drugs. However, the relationship of MoCBP3 with the known families of carbohydrate-binding domains has not been established. In the present study, full-length cDNAs encoding 4 isoforms of Mo-CBP3 (Mo-CBP3-1, Mo-CBP3-2, Mo-CBP3-3 and Mo-CBP3-4) were cloned from developing seeds. The polypeptides encoded by the Mo-CBP3 cDNAs were predicted to contain 160 (Mo-CBP3-3) and 163 amino acid residues (Mo-CBP3-1, Mo-CBP3-2 and Mo-CBP3-4) with a signal peptide of 20-residues at the N-terminal region. A comparative analysis of the deduced amino acid sequences revealed that Mo-CBP3 is a typical member of the 2S albumin family, as shown by the presence of an eight-cysteine motif, which is a characteristic feature of the prolamin superfamily. Furthermore, mass spectrometry analysis demonstrated that Mo-CBP3 is a mixture of isoforms that correspond to different mRNA products. The identification of Mo-CBP3 as a genuine member of the 2S albumin family reinforces the hypothesis that these seed storage proteins are involved in plant defense. Moreover, the chitin-binding ability of Mo-CBP3 reveals a novel functionality for a typical 2S albumin.
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Affiliation(s)
- José E. C. Freire
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Ilka M. Vasconcelos
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | | | - Adelina B. Batista
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Marina D. P. Lobo
- Núcleo de Biologia Experimental, Universidade de Fortaleza, Fortaleza, Ceará, Brazil
| | - Mirella L. Pereira
- Departamento de Biologia, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - João P. M. S. Lima
- Instituto de Medicina Tropical (IMT-RN), Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Ricardo V. M. Almeida
- Instituto de Medicina Tropical (IMT-RN), Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Antônio J. S. Sousa
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | | | - José T. A. Oliveira
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Thalles B. Grangeiro
- Departamento de Biologia, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
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Hong J, Chen TT, Hu L, Yang J, Hu P, Wang SY. Purification and characterization of a novel lectin from Chinese leek seeds. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:1488-1495. [PMID: 25569192 DOI: 10.1021/jf5046014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A novel lectin, CLSL, was purified from Chinese leek seeds by ion exchange chromatography on SP Sephadex C-25 and gel filtration chromatography on Sephadex G50. The lectin had a molecular weight of 23.6 kDa and was composed of two identical subunits linked by disulfide bonds, a conclusion based on SDS-PAGE under reducing and nonreducing conditions. CLSL was a glycoprotein with a carbohydrate content of 3.6%. It exerted potent agglutinating activity against rat red blood cells at a concentration of 8.9 μg/mL. Hemagglutination of rat erythrocytes was inhibited by d-fructose, mannitol, and sorbose at the concentration of 20 mM. The hemagglutinating activity of CLSL was maintained at 100 °C for 60 min and under acidic pH conditions but was lost at neutral and alkaline pH conditions. The hemagglutinating activity was stimulated by Ca(2+), Fe(2+), and Cu(2+) but inactivated by Ba(2+) at a concentration of 10 mM. Ba(2+)-mediated inactivation of CLSL was caused by CLSL conformational change induced by barium ions, according to the results of circular dichroism and fluorescence spectroscopy. Deconvolution of the CLSL circular dichroism indicated that it was an α-helical lectin with α-helix and β-fold contents of 35.8% and 8.6%, respectively. CLSL could also selectively inhibit cell proliferation.
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Affiliation(s)
- Jing Hong
- College of Biological Science and Technology, Fuzhou University , 2 Xue Yuan Road, University Town, Fuzhou, Fujian 350108, China
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Braga AA, e Lacerda RR, de Vasconcelos Medeiros GKV, Gonçalves GF, de Luna Freire Pessoa H, Cardoso JD, de Almeida Gadelha CA, da Silva BA, Santi-Gadelha T. Antibacterial and Hemolytic Activity of a new Lectin Purified from the Seeds of Sterculia Foetida L. Appl Biochem Biotechnol 2014; 175:1689-99. [DOI: 10.1007/s12010-014-1390-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 11/12/2014] [Indexed: 11/29/2022]
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18
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Pavankumar AR, Kayathri R, Murugan NA, Zhang Q, Srivastava V, Okoli C, Bulone V, Rajarao GK, Ågren H. Dimerization of a flocculent protein from Moringa oleifera: experimental evidence and in silico interpretation. J Biomol Struct Dyn 2013; 32:406-15. [PMID: 23662981 DOI: 10.1080/07391102.2013.770374] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Many proteins exist in dimeric and other oligomeric forms to gain stability and functional advantages. In this study, the dimerization property of a coagulant protein (MO2.1) from Moringa oleifera seeds was addressed through laboratory experiments, protein-protein docking studies and binding free energy calculations. The structure of MO2.1 was predicted by homology modelling, while binding free energy and residues-distance profile analyses provided insight into the energetics and structural factors for dimer formation. Since the coagulation activities of the monomeric and dimeric forms of MO2.1 were comparable, it was concluded that oligomerization does not affect the biological activity of the protein.
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Affiliation(s)
- Asalapuram R Pavankumar
- a Division of Bioprocess Technology , School of Biotechnology, Royal Institute of Technology (KTH) , 10691 , Stockholm , Sweden
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Joshi CV, Pathan EK, Punekar NS, Tupe SG, Kapadnis BP, Deshpande MV. A biochemical correlate of dimorphism in a zygomycete Benjaminiella poitrasii: characterization of purified NAD-dependent glutamate dehydrogenase, a target for antifungal agents. Antonie van Leeuwenhoek 2013; 104:25-36. [PMID: 23588417 DOI: 10.1007/s10482-013-9921-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Accepted: 04/05/2013] [Indexed: 10/27/2022]
Abstract
The fungal organisms, especially pathogens, change their vegetative (Y, unicellular yeast and H, hypha) morphology reversibly for survival and proliferation in the host environment. NAD-dependent glutamate dehydrogenase (NAD-GDH, EC 1.4.1.2) from a non-pathogenic dimorphic zygomycete Benjaminiella poitrasii was previously reported to be an important biochemical correlate of the transition process. The enzyme was purified to homogeneity and characterized. It is a 371 kDa native molecular weight protein made up of four identical subunits. Kinetic studies showed that unlike other NAD-GDHs, it may act as an anabolic enzyme and has more affinity towards 2-oxoglutarate than L-glutamate. Chemical modifications revealed the involvement of single histidine and lysine residues in the catalytic activity of the enzyme. The phosphorylation and dephosphorylation study showed that the NAD-GDH is present in active phosphorylated form in hyphal cells of B. poitrasii. Two of the 1,2,3 triazole linked β-lactam-bile acid conjugates synthesized in the laboratory (B18, B20) were found to be potent inhibitors of purified NAD-GDH which also significantly affected Y-H transition in B. poitrasii. Furthermore, the compound B20 inhibited germ tube formation during Y-H transition in Candida albicans strains and Yarrowia lipolytica. The possible use of NAD-GDH as a target for antifungal agents is discussed.
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Affiliation(s)
- C V Joshi
- Biochemical Sciences Division, National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
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20
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Luz LDA, Silva MCC, Ferreira RDS, Santana LA, Silva-Lucca RA, Mentele R, Oliva MLV, Paiva PMG, Coelho LCBB. Structural characterization of coagulant Moringa oleifera Lectin and its effect on hemostatic parameters. Int J Biol Macromol 2013; 58:31-6. [PMID: 23537800 DOI: 10.1016/j.ijbiomac.2013.03.044] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 03/12/2013] [Accepted: 03/14/2013] [Indexed: 11/24/2022]
Abstract
Lectins are carbohydrate recognition proteins. cMoL, a coagulant Moringa oleifera Lectin, was isolated from seeds of the plant. Structural studies revealed a heat-stable and pH resistant protein with 101 amino acids, 11.67 theoretical pI and 81% similarity with a M. oleifera flocculent protein. Secondary structure content was estimated as 46% α-helix, 12% β-sheets, 17% β-turns and 25% unordered structures belonging to the α/β tertiary structure class. cMoL significantly prolonged the time required for blood coagulation, activated partial thromboplastin (aPTT) and prothrombin times (PT), but was not so effective in prolonging aPTT in asialofetuin presence. cMoL acted as an anticoagulant protein on in vitro blood coagulation parameters and at least on aPTT, the lectin interacted through the carbohydrate recognition domain.
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Paula HCB, Rodrigues MLL, Ribeiro WLC, Stadler AS, Paula RCM, Abreu FOMS. Protective effect of cashew gum nanoparticles on natural larvicide from Moringa oleifera seeds. J Appl Polym Sci 2011. [DOI: 10.1002/app.35230] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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de Oliveira CFR, Luz LA, Paiva PMG, Coelho LCBB, Marangoni S, Macedo MLR. Evaluation of seed coagulant Moringa oleifera lectin (cMoL) as a bioinsecticidal tool with potential for the control of insects. Process Biochem 2011. [DOI: 10.1016/j.procbio.2010.09.025] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Rolim LADMM, Macêdo MFS, Sisenando HA, Napoleão TH, Felzenszwalb I, Aiub CAF, Coelho LCBB, Medeiros SRB, Paiva PMG. Genotoxicity evaluation of Moringa oleifera seed extract and lectin. J Food Sci 2011; 76:T53-8. [PMID: 21535795 DOI: 10.1111/j.1750-3841.2010.01990.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
UNLABELLED This article reports the genotoxicity assessment of an extract of M. oleifera seed powder and the water-soluble Moringa oleifera lectin (WSMoL) isolated from seeds. The lectin isolated by chitin chromatography showed hemagglutinating activity with different erythrocytes, activity in a broad pH range (4.5 to 9.5), and retention of hemagglutinating activity after being heated to 100 °C. Genotoxicity of the seed extract and WSMoL were assessed using the cell-free plasmid DNA as well as the Salmonella typhimurium (Ames and Kado) assays with TA97, TA98, TA100, and TA102 in the presence or absence of hepatic metabolization. Seed extract at concentration (0.2 μg/μL) recommended to treat water was not genotoxic by Ames, Kado, and cell-free plasmid DNA assays. S. typhimurium strains showed to be sensitive to M. oleifera extract revealing a mutagenic effect at doses higher than 0.6 μg/μL with hepatic metabolization. The extract at doses higher than 0.4 μg/μL, without hepatic metabolization, was mutagenic for TA100 and TA102. WSMoL was nonmutagenic by used assays. The use of high concentrations of the extract may pose a risk to human health and the safe use of M. oleifera seed powder to treat water for human consumption requires more study; however, the purified lectin could be an alternative for water treatment. PRACTICAL APPLICATION The concentration 0.2 μg/μL of M. oleifera seed extract recommended to treat water for humans did not pose a risk to human health. The mutagenicity detected at concentrations higher than 0.4 μg/μL was not due to WSMoL, lectin isolated from extract.
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Affiliation(s)
- Lucíola A D M M Rolim
- Lab de Glicoproteínas, Dept de Bioquímica, Centro de Ciências Biológicas, Univ Federal de Pernambuco, Recife, PE, Brazil
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Sharma U, Gaikwad SM, Suresh CG, Dhuna V, Singh J, Kamboj SS. Conformational transitions in Ariesaema curvatum lectin: characterization of an acid induced active molten globule. J Fluoresc 2010; 21:753-63. [PMID: 21069441 DOI: 10.1007/s10895-010-0766-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Accepted: 10/25/2010] [Indexed: 10/18/2022]
Abstract
Biophysical characterization of a lectin from Ariesaema curvatum (ACL) was carried out using steady state as well as time resolved fluorescence and CD spectroscopy under various denaturing conditions. An intermediate with altered tryptophan microenvironment was detected in the phase diagram, which exibited pronounced secondary structure and hemagglutinating activity in presence of 0.25 M Gdn-HCl. An acid induced molten- globule like structure possessing activity and higher thermostability was detected. Transition to the molten globule state was reversible in nature. The lectin retained hemagglutinating activity even after incubation at 95 °C. Both chemical and thermal unfolding of the lectin were found to consist of multistate processes. Fluorescence quenching of ACL was strong with acrylamide and KI. The single tryptophan was found to be surrounded by high density of the positively charged amino acid residues as shown by a ten fold higher K(sv) for KI compared to that for CsCl. The average lifetime of tryptophan fluorescence increased from 1.24 ns in the native state to 1.72 ns in the denatured state.
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Affiliation(s)
- Urvashi Sharma
- Division of Biochemical Sciences, National Chemical Laboratory, Pune, Maharashtra 411008, India
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Coelho JS, Santos NDL, Napoleão TH, Gomes FS, Ferreira RS, Zingali RB, Coelho LCBB, Leite SP, Navarro DMAF, Paiva PMG. Effect of Moringa oleifera lectin on development and mortality of Aedes aegypti larvae. CHEMOSPHERE 2009; 77:934-938. [PMID: 19747711 DOI: 10.1016/j.chemosphere.2009.08.022] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2009] [Revised: 08/10/2009] [Accepted: 08/15/2009] [Indexed: 05/28/2023]
Abstract
Aedes aegypti larvae have developed tolerance to many insecticides used for mosquito control. Moringa oleifera seeds contain a water-soluble lectin (WSMoL) and this paper reports the effect of M. oleifera seed extracts (MoE(1-15)) and WSMoL on development and survival of A. aegypti larvae. WSMoL peptide from in-gel trypsin digestion is also described. MoE(1-15) showed hemagglutinating activity and WSMoL had similarity with flocculating proteins from M. oleifera seeds. MoE(1) and MoE(3) delayed larval development which stopped in the third instar (L3) in MoE(6) and MoE(15). Significant (p<0.0001) larval mortality was only detected in MoE(15). Native WSMoL showed larvicidal activity (LC(50) 0.197 mg mL(-1)) and heated lectin, without hemagglutinating activity, did not kill fourth instar (L4) larvae. Optical microscopy showed that live L4 from MoE(1) presented underlying epithelium, increased gut lumen and hypertrophic segments; dead L4 from WSMoL were absent of underlying epithelium, had increased gut lumen and hypertrophic segments. The presence of hemagglutinating activity in the extracts suggests that soluble lectin promotes the delay of larval development and mortality; furthermore, the absence of larvicidal activity in heat-denatured WSMoL strengthens the involvement of lectin in this activity mechanism.
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Affiliation(s)
- Juliene S Coelho
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, Cidade Universitária, 50670-420 Recife, Pernambuco, Brazil
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