Magnesium aminoclays as plasmid delivery agents for non-competent Escherichia coli JM109 transformation
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/71045 |
Resumo: | Magnesium aminoclays were synthesized and used to transform non-competent Escherichia coli JM109 using the exogenous plasmid pUC19. The structure determined for the Mg aminoclays is analogous to 2:1 trioctahedral smectites such as talc, with an approximate composition R8Si8Mg6O16(OH)4, where R = CH2CH2NH2, morphologically arranged in layered sheets. Mg aminoclays were employed as a cationic vehicle that enabled the passage of plasmids across the cell envelope and led to genetic modification of the host. A stock solution of 10 mg/mL of Mg aminoclays was prepared, mixed with E. coli JM109 and pUC19 plasmid, and spread over Petri dishes containing lysogeny broth (LB), isopropyl ?-D-1-thiogalactopyranoside (IPTG), 5-bromo-4-chloro-3-indolyl-?-D-galactopyranoside (X-gal), ampicillin and various concentrations of agar (14%). The transformation efficiency obtained was higher for 1% and 2% agar even though transformation also occurred at agar concentrations of 3% and 4%. The optical density of E. coli JM109 and spreading time were also adjusted, favoring transformation when cells were used in their exponential growth phase (OD600 = 1.0) and spread for 90 s. Transformation was confirmed by the growth of blue colonies in LB/IPTG/X-gal/agar Petri dishes containing ampicillin, by regrowth of biomass in liquid media containing ampicillin and by agarose gel electrophoresis of the linearized pUC19 plasmid that followed plasmidic DNA extraction from 4 blue colonies. The maximum transformation efficiency achieved was 7.0 × 103 CFU/?g pUC19. This transformation approach proved to be suitable for a convenient, cost-effective, room-temperature, risk-free and rapid transformation of non-competent E. coli JM109. |
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Magnesium aminoclays as plasmid delivery agents for non-competent Escherichia coli JM109 transformationMagnesium aminoclaysMembrane permeationMicroorganism transformationNanobiohybrid complexPlasmid deliveryScience & TechnologyMagnesium aminoclays were synthesized and used to transform non-competent Escherichia coli JM109 using the exogenous plasmid pUC19. The structure determined for the Mg aminoclays is analogous to 2:1 trioctahedral smectites such as talc, with an approximate composition R8Si8Mg6O16(OH)4, where R = CH2CH2NH2, morphologically arranged in layered sheets. Mg aminoclays were employed as a cationic vehicle that enabled the passage of plasmids across the cell envelope and led to genetic modification of the host. A stock solution of 10 mg/mL of Mg aminoclays was prepared, mixed with E. coli JM109 and pUC19 plasmid, and spread over Petri dishes containing lysogeny broth (LB), isopropyl ?-D-1-thiogalactopyranoside (IPTG), 5-bromo-4-chloro-3-indolyl-?-D-galactopyranoside (X-gal), ampicillin and various concentrations of agar (14%). The transformation efficiency obtained was higher for 1% and 2% agar even though transformation also occurred at agar concentrations of 3% and 4%. The optical density of E. coli JM109 and spreading time were also adjusted, favoring transformation when cells were used in their exponential growth phase (OD600 = 1.0) and spread for 90 s. Transformation was confirmed by the growth of blue colonies in LB/IPTG/X-gal/agar Petri dishes containing ampicillin, by regrowth of biomass in liquid media containing ampicillin and by agarose gel electrophoresis of the linearized pUC19 plasmid that followed plasmidic DNA extraction from 4 blue colonies. The maximum transformation efficiency achieved was 7.0 × 103 CFU/?g pUC19. This transformation approach proved to be suitable for a convenient, cost-effective, room-temperature, risk-free and rapid transformation of non-competent E. coli JM109.This study was supported by the Portuguese Foundation for Science and Technology (FCT) and the European Community fund FEDER, through Program COMPETE, under the scope of the Projects FCOMP-01- 0124-FEDER-007025 (PTDC/AMB/68393/2006), PEst-OE/EQB/LA0023/2013, UID/FIS/04650/2020, RECI/BBB-EBI/0179/2012 (FCOMP-01-0124-FEDER-027462) and the Project “BioEnv - Biotech nology and Bioengineering for a sustainable world”. The authors acknowledge the fellowship SFRH/BD/71661/2010 awarded to Gabriel Mendes under the scope of the MIT-Portugal Program. The authors also thank Paul Brown and Takuya Harada for the help in obtaining TEM images.info:eu-repo/semantics/publishedVersionElsevierUniversidade do MinhoMendes, Gabriel PintoKluskens, LeonLanceros-Méndez, S.Mota, M.2021-042021-04-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/71045engMendes, Gabriel Pinto; Kluskens, Leon D.; Lanceros-Méndez, S.; Mota, Manuel, Magnesium aminoclays as plasmid delivery agents for non-competent Escherichia coli JM109 transformation. Applied Clay Science, 204(106010), 20210169-131710.1016/j.clay.2021.106010106010https://www.sciencedirect.com/journal/applied-clay-scienceinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:07:34Zoai:repositorium.sdum.uminho.pt:1822/71045Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:58:35.672856Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Magnesium aminoclays as plasmid delivery agents for non-competent Escherichia coli JM109 transformation |
title |
Magnesium aminoclays as plasmid delivery agents for non-competent Escherichia coli JM109 transformation |
spellingShingle |
Magnesium aminoclays as plasmid delivery agents for non-competent Escherichia coli JM109 transformation Mendes, Gabriel Pinto Magnesium aminoclays Membrane permeation Microorganism transformation Nanobiohybrid complex Plasmid delivery Science & Technology |
title_short |
Magnesium aminoclays as plasmid delivery agents for non-competent Escherichia coli JM109 transformation |
title_full |
Magnesium aminoclays as plasmid delivery agents for non-competent Escherichia coli JM109 transformation |
title_fullStr |
Magnesium aminoclays as plasmid delivery agents for non-competent Escherichia coli JM109 transformation |
title_full_unstemmed |
Magnesium aminoclays as plasmid delivery agents for non-competent Escherichia coli JM109 transformation |
title_sort |
Magnesium aminoclays as plasmid delivery agents for non-competent Escherichia coli JM109 transformation |
author |
Mendes, Gabriel Pinto |
author_facet |
Mendes, Gabriel Pinto Kluskens, Leon Lanceros-Méndez, S. Mota, M. |
author_role |
author |
author2 |
Kluskens, Leon Lanceros-Méndez, S. Mota, M. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Mendes, Gabriel Pinto Kluskens, Leon Lanceros-Méndez, S. Mota, M. |
dc.subject.por.fl_str_mv |
Magnesium aminoclays Membrane permeation Microorganism transformation Nanobiohybrid complex Plasmid delivery Science & Technology |
topic |
Magnesium aminoclays Membrane permeation Microorganism transformation Nanobiohybrid complex Plasmid delivery Science & Technology |
description |
Magnesium aminoclays were synthesized and used to transform non-competent Escherichia coli JM109 using the exogenous plasmid pUC19. The structure determined for the Mg aminoclays is analogous to 2:1 trioctahedral smectites such as talc, with an approximate composition R8Si8Mg6O16(OH)4, where R = CH2CH2NH2, morphologically arranged in layered sheets. Mg aminoclays were employed as a cationic vehicle that enabled the passage of plasmids across the cell envelope and led to genetic modification of the host. A stock solution of 10 mg/mL of Mg aminoclays was prepared, mixed with E. coli JM109 and pUC19 plasmid, and spread over Petri dishes containing lysogeny broth (LB), isopropyl ?-D-1-thiogalactopyranoside (IPTG), 5-bromo-4-chloro-3-indolyl-?-D-galactopyranoside (X-gal), ampicillin and various concentrations of agar (14%). The transformation efficiency obtained was higher for 1% and 2% agar even though transformation also occurred at agar concentrations of 3% and 4%. The optical density of E. coli JM109 and spreading time were also adjusted, favoring transformation when cells were used in their exponential growth phase (OD600 = 1.0) and spread for 90 s. Transformation was confirmed by the growth of blue colonies in LB/IPTG/X-gal/agar Petri dishes containing ampicillin, by regrowth of biomass in liquid media containing ampicillin and by agarose gel electrophoresis of the linearized pUC19 plasmid that followed plasmidic DNA extraction from 4 blue colonies. The maximum transformation efficiency achieved was 7.0 × 103 CFU/?g pUC19. This transformation approach proved to be suitable for a convenient, cost-effective, room-temperature, risk-free and rapid transformation of non-competent E. coli JM109. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-04 2021-04-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/71045 |
url |
http://hdl.handle.net/1822/71045 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Mendes, Gabriel Pinto; Kluskens, Leon D.; Lanceros-Méndez, S.; Mota, Manuel, Magnesium aminoclays as plasmid delivery agents for non-competent Escherichia coli JM109 transformation. Applied Clay Science, 204(106010), 2021 0169-1317 10.1016/j.clay.2021.106010 106010 https://www.sciencedirect.com/journal/applied-clay-science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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