Expression of synthetic phytochelatin ec20 in e. Coli increases its biosorption capacity and cadmium resistance Cleide Barbieri de Souza, Elisabete José Vicente Bioscience Journal, 2020 In this study E. coli recombinant clones that express the EC20 synthetic phytochelatin intracellularly were constructed. The increasement of Cd2+ biosorption capacity, and, also, the increasement of resistance to this toxic metal were analyzed. A gene that encodes the synthetic phytochelatin EC20 was synthesized in vitro. The EC20 synthetic gene was amplified by PCR, inserted into the DNA cloning vectors pBluescript®KS+ and pGEM®-TEasy, and also into the expression vectors pTE [pET-28(a)® derivative] and pGEX-T4-2®. The obtained recombinant plasmids were employed for genetic transformation of E. coli: pBsKS-EC20 and pGEM-EC20, they were introduced into DH10B and DH5α strains, similarly to pTE-EC20 and pGEX-EC20 that were introduced into BL21 strain. The EC20 expression was confirmed by SDS-PAGE analysis. The recombinant clones’ resistances to Cd2+ were determined by MIC analyses. The MIC for Cd2+ of DH10B/pBKS-EC20 and DH10B/pGEM-EC20 were 2.5 mM (EC20 induced), and 0.312 mM (EC20 repressed); respectively, 16 and 2 times higher than the control DH10B/pBsKS (0.156 mM). The MIC for Cd2+ of BL21/pTE-EC20 was 10.0 mM (EC20 induced) and 2.5 mM (EC20 repressed), compared with the control BL21/pTE which was only 1.25 mM. Analysis of ICP-AES showed that BL21/pGEX-EC20, after growth on the condition of EC20 expression, absorbed 37.5% of Cd2+, and even when cultured into the non-induction condition of EC20 expression, it absorbed 11.5%. These results allow the conclusion that recombinant E. coli clones expressing the synthetic phytochelatin EC20 show increased capacity for Cd2+ biosorption and enhanced resistance to this toxic ion.
Synthetic phytochelatin surface display in cupriavidus metallidurans CH34 for enhanced metals bioremediation Ronaldo Biondo, Felipe Almeida da Silva, Elisabete José Vicente, Jorge Eduardo Souza Sarkis, Ana Clara Guerrini Schenberg Environmental Science and Technology, 2012 This work describes the effects of the cell surface display of a synthetic phytochelatin in the highly metal tolerant bacterium Cupriavidus metallidurans CH34. The EC20sp synthetic phytochelatin gene was fused between the coding sequences of the signal peptide (SS) and of the autotransporter β-domain of the Neisseria gonorrhoeae IgA protease precursor (IgAβ), which successfully targeted the hybrid protein toward the C. metallidurans outer membrane. The expression of the SS-EC20sp-IgAβ gene fusion was driven by a modified version of the Bacillus subtilis mrgA promoter showing high level basal gene expression that is further enhanced by metal presence in C. metallidurans. The recombinant strain showed increased ability to immobilize Pb(2+), Zn(2+), Cu(2+), Cd(2+), Mn(2+), and Ni(2+) ions from the external medium when compared to the control strain. To ensure plasmid stability and biological containment, the MOB region of the plasmid was replaced by the E. coli hok/sok coding sequence.
Endostatin- and interleukin-2-expressing retroviral bicistronic vector for gene therapy of metastatic renal cell carcinoma Flávia Gomes de Góes Rocha, Fernanda B. Calvo, Karen C. Chaves, Jean P. S. Peron, Rodolfo F. Marques, Tânia R. de Borba, Marina S. Braga, Cleide B. Pereira, Elisabete J. Vicente, Roger Chammas, Nestor Schor, Maria H. Bellini Journal of Gene Medicine, 2011 Metastatic renal cell carcinoma (mRCC) is one of the most treatment‐resistant malignancies. Despite all new therapeutic advances, almost all patients develop resistance to treatment and cure is rarely seen. In the present study, we evaluated the antitumor effect of a bicistronic retrovirus vector encoding both endostatin (ES) and interleukin (IL)‐2 using an orthotopic metastatic RCC mouse model.
Pectinolytic activity secreted by yeasts isolated from fermented citrus molasses K.F. Oliveira, L. Malavolta, C.S. Souza, E.J. Vicente, C. Laluce Journal of Applied Microbiology, 2006 Aims: The aim of this study was to obtain improved strains of pectinolytic yeasts adapted to the conditions of an industrial fermentation process, which was continuously operated to convert citrus molasses into ethanol.
Radiation interaction with DNA A. Deppman, J.O. Echeimberg, A.N. Gouveia, J.D.T. Arruda-Neto, F.M. Milian, N. Added, M.E. Camargo, F. Guzman, O.A.M. Helene, V.P. Likhachev, O. Rodriguez, A.C.G. Schenberg, V. Vanin, E.J. Vicente Brazilian Journal of Physics, 2004 We developed a model to describe the radiation-DNA interaction in water solution. The model is based on some important aspects of the Bethe Theory for the ionizing process, and on the assumption that the direct interaction between the incident particle and the DNA molecule is negligible in comparison with the indirect effect. This assumption can always be true under controlled conditions. The results show that the number of damages induced by radiation depends on the accumulated dose, on parameters related only to the medium properties, and on the DNA structure, but not on the incident particle. A few applications of the model are discussed, and results are successfully compared with experimental data. New experiments are proposed.
Evaluation of alternative reporter genes for the yeast two-hybrid system Genetics and Molecular Research, 2003
Immunogenic properties of the M. leprae recombinant 18-kDa antigen purified from Saccharomyces cerevisiae; Enhancement of delayed-type hypersensitivity after gamma-irradiation International Journal of Leprosy, 1995
Monomeric Esterase: Insights into Cooperative Behavior, Hysteresis/Allokairy TC Vinces, AS de Souza, CF Carvalho, AB Visnardi, RD Teixeira, ... Biochemistry 63 (9), 1178-1193 , 2024 2024 Citations: 11
Biotechnology: use of available carbon sources on the planet to generate alternatives energy JAC Junior, EJ Vicente, ETG Marasca, FAG Torres, LMP Moraes, ... authorea , 2024 2024
Biotechnology: use of available carbon sources on the planet to generate alternatives energy J JAdC, EJ Vicente, ETG Marasca, FAG Torres, LMP Moraes, UA Bones 2024
Antibacterial ability of different activated irrigation after root canal preparation: intratubular analyses CK Nabeshima, H Caballero-Flores, EJ Vicente, G Gavini, MEL Machado Brazilian Dental Journal 35, e24-5883 , 2024 2024 Citations: 3
Biotechnology: use of available carbon sources on the planet to generate alternatives energy JA da Costa Junior, EJ Vicente, ETG Marasca, FAG Torres, ... Research, Society and Development 11 (16), e536111627904-e536111627904 , 2022 2022
Molecular and functional basis of a novel Amazonian Dark Earth Esterase 1 (Ade1) with hysteresis behavior and quorum-quenching activity TC Vinces, AS Souza, CF Carvalho, RD Teixeira, BAP Bismara, ... bioRxiv, 2020.12. 16.421545 , 2020 2020
Expression of synthetic phytochelatin EC20 in E. coli increases its biodorption capacity and cadmium resistance CB Souza, EJ Vicente Bioscience Journal 36 (2), 619-627 , 2020 2020 Citations: 2
Evaluation of ethanol extract of Punica granatum (Pomegranate) peel decrease in viral replication of BoHV-1 in Colorado murine embryos experimentally infected EG Palazzi, EM Pituco, EJ Vicente, D Hansen, D Felicio, MS Lima, ... 2016
Construction of stable recombinant industrial yeast strains that secretes glucoamylase and alpha-amylase EJ Vicente, OG Guerra, FS Carvalho, RG Oliveira, S Astolfi-Filho, ... YEAST 32, S171-S171 , 2015 2015
Construction and characterization of a yeast strain designed for mercury bioremediation JP Fuentes Rivera, ACG Schenberg, EJ Vicente YEAST 32, S248-S249 , 2015 2015
Avaliação da capacidade de biorremediação de metais tóxicos por microrganismos selecionados EJ Vicente, R Biondo, CG Silva Filho, CA Brandt Águas Subterrâneas , 2015 2015
Análise do impacto na microbiota de ambientes contaminados pelo escoamento de poluente BTEX oriundo de vazamentos de Postos de Combustíveis EJ Vicente, R Biondo, CG Silva Filho, CA Brandt, KA do Amaral Melo, ... Águas Subterrâneas , 2015 2015
Avaliação do extrato etanólico de casca de Punica granatum (romã) na diminuição da replicação viral do BoHV-1 Colorado em embriões murinos experimentalmente infectados EG Palazzi, EM Pituco, EJ Vicente, D Hansen, JD Felicio, MS Lima, ... Arquivos do Instituto Biológico 82, 1-9 , 2015 2015
Isolamento e identificação de bactérias com potencial para realizar biorremediação de cobre. KR Hornink Universidade de São Paulo , 2015 2015
Avaliação dos produtos naturais na diminuição da replicação viral dos BoHV-1 colorados em embriões murinos infectados experimentalmente. EG Palazzi Universidade de São Paulo , 2015 2015
Gene, ars-r anchorage cassette, ars-r expression-anchorage cassette, recombinant plasmid, bacterial transgenic lineage, use of said gene, use of said lineage in environmental … EJ VICENTE, ACG Schenberg, CA da Silva Parada, R Biondo US Patent App. 13/902,477 , 2014 2014
Avaliação da estabilidade genética conferida pelo lócus parB e força de expressão dos promotores deste sistema gênico FA Silva, EJ Vicente 2014
Construção e caracterização de uma linhagem de levedura desenhada para biorremediação de mercúrio. JPFR Navarro Universidade de São Paulo , 2013 2013
Gene, mer-r anchorage cassette, mer-r expression-anchorage cassette, recombinant plasmid, transgenic bacteria line, use of said gene, use of said line in environmental … EJ VICENTE, ACG SCHENBERG, CA da Silva PARADA, R BIONDO 2012
Synthetic Phytochelatin Surface Display in Cupriavidus metallidurans CH34 for Enhanced Metals Bioremediation R Biondo, FA da Silva, EJ Vicente, JE Souza Sarkis, ACG Schenberg Environmental science & technology 46 (15), 8325-8332 , 2012 2012 Citations: 56
MOST CITED SCHOLAR PUBLICATIONS
Synthetic Phytochelatin Surface Display in Cupriavidus metallidurans CH34 for Enhanced Metals Bioremediation R Biondo, FA da Silva, EJ Vicente, JE Souza Sarkis, ACG Schenberg Environmental science & technology 46 (15), 8325-8332 , 2012 2012 Citations: 56
Pectinolytic activity secreted by yeasts isolated from fermented citrus molasses KF Oliveira, L Malavolta, CS Souza, EJ Vicente, C Laluce Journal of applied microbiology 100 (4), 633-640 , 2006 2006 Citations: 43
Studies on polyhydroxyalkanoate (PHA) accumulation in a PHA synthase I-negative mutant of Burkholderia cepacia generated by homogenotization MF de Andrade Rodrigues, EJ Vicente, A Steinbüchel FEMS microbiology letters 193 (1), 179-185 , 2000 2000 Citations: 30
A novel system of genetic transformation allows multiple integrations of a desired gene in Saccharomyces cerevisiae chromosomes OG Guerra, IGS Rubio, CG da Silva Filho, RA Bertoni, ... Journal of microbiological methods 67 (3), 437-445 , 2006 2006 Citations: 24
Further characterization of the yeast pso4-1 mutant: interaction with rad51 and rad52 mutants after photoinduced psoralen lesions MA de Morais, EJ Vicente, J Brozmanova, ACG Schenberg, ... Current genetics 29 (3), 211-218 , 1996 1996 Citations: 22
Immunogenic Properties of the M. leprae Recombinant 18-kDa Antigen Purified from Saccharomyces cerevisiae, Enhancement of Delayed-Type Hypersensitivity after Gamma-Irradiation JRR Pinho, BA Cardi, HF Andrade, PJ Barr, IC Bathurst, EJ Vicente, ... International journal of leprosy and other mycobacterial diseases 63, 381-381 , 1995 1995 Citations: 21
Antimicrobial resistance patterns of Haemophilus influenzae isolated from patients with meningitis in São Paulo, Brazil ST Casagrande, EJ Vicente, IM Landgraf, AMM Kobata Brazilian Journal of Medical and Biological Research 33, 295-300 , 2000 2000 Citations: 19
Evaluation of alternative reporter genes for the yeast two-hybrid system AL Starling, JM Ortega, KJ Gollob, EJ Vicente, GM Andrade-Nóbrega, ... Genet. Mol. Res 2 (1), 124-135 , 2003 2003 Citations: 18
In Vitro Effects of Gamma Radiation from 60 Co and 137 Cs on Plasmid DNA FM Milian, AN Gouveia, MR Gual, JO Echeimberg, JDT Arruda-Neto, ... Journal of biological physics 33 (2), 155-160 , 2007 2007 Citations: 16
Endostatin‐and interleukin‐2‐expressing retroviral bicistronic vector for gene therapy of metastatic renal cell carcinoma FGG Rocha, FB Calvo, KC Chaves, JPS Peron, RF Marques, TR de Borba, ... The journal of gene medicine 13 (3), 148-157 , 2011 2011 Citations: 12
Monomeric Esterase: Insights into Cooperative Behavior, Hysteresis/Allokairy TC Vinces, AS de Souza, CF Carvalho, AB Visnardi, RD Teixeira, ... Biochemistry 63 (9), 1178-1193 , 2024 2024 Citations: 11
Autolytic Mycobacterium leprae Hsp65 fragments may act as biological markers for autoimmune diseases CA Parada, F Portaro, EB Marengo, CF Klitzke, EJ Vicente, M Faria, ... Microbial pathogenesis 51 (4), 268-276 , 2011 2011 Citations: 11
Radiation interaction with DNA A Deppman, JO Echeimberg, AN Gouveia, JDT Arruda-Neto, FM Milian, ... Brazilian journal of physics 34 (3a), 958-961 , 2004 2004 Citations: 11
Phenotypic Characterization of Trichophyton rubrum isolates from two geographic locations in Brazil JI Dos Santos, EJ Vicente, CR Paula, W Gambale European journal of epidemiology 17 (8), 729-735 , 2001 2001 Citations: 11
A metal‐repressed promoter from gram‐positive Bacillus subtilis is highly active and metal‐induced in gram‐negative Cupriavidus metallidurans G Ribeiro‐dos‐Santos, R Biondo, OF Quadros, EJ Vicente, ... Biotechnology and bioengineering 107 (3), 469-477 , 2010 2010 Citations: 10
Obtenção de um mutante de Alcaligenes eutrophus melhorado geneticamente para a produção do co-polímero polihidroxibutirato-polihidroxivalerato (PHB-PHV) DM Sartori, EJ Vicente 1998 Citations: 7
Expression of the 18kDa protein of Mycobacterium leprae in Saccharomyces cerevisiae JRR Pinho, PJ Barr, EJ Vicente, AC Schenberg Biotechnology letters 16 (12), 1241-1246 , 1994 1994 Citations: 7
Cepa mutante de Alcaligenes Eutrophus, cepa transgênica de mutante de Alcaligenes Eutrophus e método de obtenção EJ Vicente Brazilian patent PI, 9805116-4 , 1998 1998 Citations: 5
Antibacterial ability of different activated irrigation after root canal preparation: intratubular analyses CK Nabeshima, H Caballero-Flores, EJ Vicente, G Gavini, MEL Machado Brazilian Dental Journal 35, e24-5883 , 2024 2024 Citations: 3
Biología celular MB Rodriguez, EJ Vicente, AAC Leitao, ACG Schenberg, SOP Costa 1989 Citations: 3