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de Carvalho MH, de Araújo HDA, da Silva RP, Dos Santos Correia MT, de Freitas KCS, de Souza SR, Barroso Coelho LCB. Biosensor Characterization from Cratylia mollis Seed Lectin (Cramoll)-MOF and Specific Carbohydrate Interactions in an Electrochemical Model. Chem Biodivers 2022; 19:e202200515. [PMID: 36250754 DOI: 10.1002/cbdv.202200515] [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: 05/25/2022] [Accepted: 10/14/2022] [Indexed: 12/27/2022]
Abstract
Biosensors are small devices known for their selectivity, high specificity and sensitivity to the respective analyte, at low concentrations. We developed an electrochemical biosensor using the crystalline polymer MOF-[Cu3 (BTC)2 (H2 O)2 ]n to characterize Cratylia mollis seed lectin (Cramoll) and its interaction with free carbohydrate (glucose) and carbohydrates on the surface of rabbit erythrocytes. The electrochemical potentials presented by the exponential curves that vary from 96 to 142 mV in relation to concentrations of 10 to 20 mM of glucose are decisive for the use of the system containing gold electrode/MOF/Cramoll for the characterization of biological models due to its high sensitivity. As well as the kinetic behavior presented in the cyclic voltammograms, with a cathodic current response of 0.000 3 A for a glucose concentration of 15 mM. These results were due to the high specificity of Cramoll under these conditions, promoting stability of surface charges at the Cramoll/electrode interface. This phenomenon facilitates the monitoring of the interaction with free glucose present in the electrolyte medium by potentiometric and amperometric methods and with carbohydrates present on the surface of rabbit erythrocytes through the potentiometric method. Through scanning electron microscopy (SEM) it was possible to observe Cramoll immobilized on the MOF surface, proving the specificity of the ligand (glucose-lectin) through the morphological lectin changes in this process. This electrochemical model, Cramoll/MOF biosensor, is effective for evaluating free lectin/carbohydrate or in the erythrocyte membrane.
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Affiliation(s)
- Maryana Hermínio de Carvalho
- Departamento de Bioquímica, Centro de Biociências, CB, Universidade Federal de Pernambuco, Avenida Prof. Moraes Rego, 1235, Cidade Universitária, 50670-420, Recife-PE, Brazil
- Departamento de Química, Universidade Federal Rural de Pernambuco, UFRPE, Rua Dom Manuel de Medeiros, S/N, Dois Irmãos, Recife-PE, 52171-900, Brazil
| | - Hallysson Douglas Andrade de Araújo
- Departamento de Bioquímica, Centro de Biociências, CB, Universidade Federal de Pernambuco, Avenida Prof. Moraes Rego, 1235, Cidade Universitária, 50670-420, Recife-PE, Brazil
| | - Renata Pereira da Silva
- Departamento de Química, Universidade Federal Rural de Pernambuco, UFRPE, Rua Dom Manuel de Medeiros, S/N, Dois Irmãos, Recife-PE, 52171-900, Brazil
| | - Maria Tereza Dos Santos Correia
- Departamento de Bioquímica, Centro de Biociências, CB, Universidade Federal de Pernambuco, Avenida Prof. Moraes Rego, 1235, Cidade Universitária, 50670-420, Recife-PE, Brazil
| | - Katia Cristina Silva de Freitas
- Departamento de Química, Universidade Federal Rural de Pernambuco, UFRPE, Rua Dom Manuel de Medeiros, S/N, Dois Irmãos, Recife-PE, 52171-900, Brazil
| | - Sandra Rodrigues de Souza
- Departamento de Educação, UFRPE, Rua Dom Manuel de Medeiros, S/N, Dois Irmãos, Recife-PE, 52171-900, Brazil
| | - Luana Cassandra Breitenbach Barroso Coelho
- Departamento de Bioquímica, Centro de Biociências, CB, Universidade Federal de Pernambuco, Avenida Prof. Moraes Rego, 1235, Cidade Universitária, 50670-420, Recife-PE, Brazil
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Varejão N, Correia MTS, Foguel D. Characterization of the Unfolding Process of the Tetrameric and Dimeric Forms of Cratylia mollis Seed Lectin (CRAMOLL 1): Effects of Natural Fragmentation on Protein Stability. Biochemistry 2011; 50:7330-40. [DOI: 10.1021/bi200320x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nathalia Varejão
- Instituto
de Bioquímica Médica, Programa de Biologia Estrutural,
Centro Nacional de Ressonância Magnética Nuclear de
Macromoléculas, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, 21941-902, Rio
de Janeiro, RJ, Brazil
| | - Maria Tereza S. Correia
- Departamento de Bioquímica, Laboratório de Glicoproteínas, Universidade Federal de Pernambuco, 50670-420, Recife,
Pernambuco, PE, Brazil
| | - Debora Foguel
- Instituto
de Bioquímica Médica, Programa de Biologia Estrutural,
Centro Nacional de Ressonância Magnética Nuclear de
Macromoléculas, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, 21941-902, Rio
de Janeiro, RJ, Brazil
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Varejão N, Almeida MDS, De Cicco NNT, Atella GC, Coelho LCBB, Correia MATS, Foguel D. Heterologous expression and purification of a biologically active legume lectin from Cratylia mollis seeds (CRAMOLL 1). BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2010; 1804:1917-24. [PMID: 20538076 DOI: 10.1016/j.bbapap.2010.06.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2010] [Revised: 05/31/2010] [Accepted: 06/01/2010] [Indexed: 10/19/2022]
Abstract
CRAMOLL 1 is a mannose/glucose isolectin isolated from Cratylia mollis seeds. This lectin has 82% sequence identity with Con A and essentially the same quaternary structure. As with Con A, CRAMOLL 1 seems to undergo complex post-translational processing which makes it difficult to the use of traditional molecular cloning for heterologous expression. Here we report the expression and purification of functional recombinant CRAMOLL 1 (rCRAMOLL 1) in Escherichia coli. This was accomplished by introducing a chemically synthesized DNA encoding the mature CRAMOLL 1 amino acid sequence into a bacterial expression vector under T7 promoter control. Most of the recombinant lectin was found in insoluble aggregates (inclusion bodies), but we were able to recover reasonable amounts of soluble lectin in the active form by decreasing the protein induction temperature. The recombinant lectin was purified to homogeneity with one-step affinity chromatography. The plant CRAMOLL 1 (pCRAMOLL 1) and rCRAMOLL 1 share several physicochemical properties such as molecular mass, charge density and secondary and tertiary structures. However, pCRAMOLL 1 has a lower thermodynamic stability than rCRAMOLL 1 when probed by acidification, high temperature or high hydrostatic pressure, and this is probably caused by the presence of tetramers composed of fragmented monomers, which are formed in the plant cotyledon but absent from the recombinant protein. rCRAMOLL 1 behaves identically to its plant counterpart with respect to its specificity for monosaccharides, and to its agglutinating activities against rabbit erythrocytes and Trypanosoma cruzi epimastigote cells.
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Affiliation(s)
- Nathalia Varejão
- Instituto de Bioquímica Médica, Programa de Biologia Estrutural, Centro Nacional de Ressonância Magnética Nuclear de Macromoléculas, Universidade Federal do Rio de Janeiro, Av. Bauhínia, 400, 21941-590, Rio de Janeiro, RJ, Brazil
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Ferromagnetic levan composite: an affinity matrix to purify lectin. J Biomed Biotechnol 2009; 2009:179106. [PMID: 19547713 PMCID: PMC2696615 DOI: 10.1155/2009/179106] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2009] [Accepted: 05/06/2009] [Indexed: 11/29/2022] Open
Abstract
A simple and inexpensive procedure used magnetite and levan to synthesize a composite recovered by a magnetic field. Lectins from Canavalia ensiformis (Con A) and Cratylia mollis (Cramoll 1 and Cramoll 1, 4) did bind specifically to composite. The magnetic property of derivative favored washing out contaminating proteins and recovery of pure lectins with glucose elution. Cramoll 1 was purified by this affinity binding procedure in two steps instead of a previous three-step protocol with ammonium sulfate fractionation, affinity chromatography on Sephadex G-75, and ion exchange chromatography through a CM-cellulose column.
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Souza SR, Dutra RF, Correia MTS, Pessoa MMA, Lima-Filho JL, Coelho LCBB. Electrochemical potential of free and immobilized Cratylia mollis seed lectin. BIORESOURCE TECHNOLOGY 2003; 88:255-258. [PMID: 12618049 DOI: 10.1016/s0960-8524(03)00011-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The electrochemical potentials for free or immobilized Cratylia mollis seed lectin (Cra) were obtained through potentiostatic techniques. A saline solution was used as support to control the charge distribution between saturated calomel electrode and platinum electrode (working electrode). The electrochemical potential to free Cra was determined at the following concentrations: 0.6, 0.9 and 1.0 mg/ml in an aerated environment under different temperatures (5, 10 and 20 degrees C). The best electrochemical potential was obtained with 1.0 mg/ml, at 5 and 10 degrees C, 87 and 102 mV, respectively. Electrochemical potential to Cra immobilized on glass beads activated with 3-aminopropyltriethoxysilane described a linear behavior in relation to the increase in glucose concentration. The development of techniques to define interface electrical parameters will be able to give information about charged groups adsorbed to electrode surface revealing interactions particularly in biological systems.
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Affiliation(s)
- S R Souza
- Rural Federal University of Pernambuco, UFRPE, Brazil
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