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dc.creatorHernández Tamayo, Rogelio-
dc.creatorTorres Tejerizo, Gonzalo Arturo-
dc.creatorBrom, Susana-
dc.creatorRomero, David-
dc.date2018-06-11T20:58:44Z-
dc.date2018-06-11T20:58:44Z-
dc.date2016-06-
dc.date2018-06-08T14:26:44Z-
dc.date.accessioned2019-04-29T15:28:08Z-
dc.date.available2019-04-29T15:28:08Z-
dc.date.issued2018-06-11T20:58:44Z-
dc.date.issued2018-06-11T20:58:44Z-
dc.date.issued2016-06-
dc.date.issued2018-06-08T14:26:44Z-
dc.identifierHernández Tamayo, Rogelio; Torres Tejerizo, Gonzalo Arturo; Brom, Susana; Romero, David; Site-specific bacterial chromosome engineering mediated by IntA integrase from Rhizobium etli; BioMed Central; BMC Microbiology; 16; 1; 6-2016; 1-9-
dc.identifier1471-2180-
dc.identifierhttp://hdl.handle.net/11336/48192-
dc.identifierCONICET Digital-
dc.identifierCONICET-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/294683-
dc.descriptionBackground: The bacterial chromosome may be used to stably maintain foreign DNA in the mega-base range. Integration into the chromosome circumvents issues such as plasmid replication, stability, incompatibility, and copy number variance. The site-specific integrase IntA from Rhizobium etli CFN42 catalyzes a direct recombination between two specific DNA sites: attA and attD (23 bp). This recombination is stable. The aim of this work was to develop a R. etli derivative that may be used as recipient for the integration of foreign DNA in the chromosome, adapting the IntA catalyzed site-specific recombination system. Results: To fulfill our aim, we designed a Rhizobium etli CFN42 derivative, containing a “landing pad” (LP) integrated into the chromosome. The LP sector consists of a green fluorescent protein gene under the control of the lacZ promoter and a spectinomycin resistance gene. Between the lacZ promoter and the GFP gene we inserted an IntA attachment site, which does not affect transcription from the lac promoter. Also, a mobilizable donor vector was generated, containing an attA site and a kanamycin resistance gene; to facilitate insertion of foreign DNA, this vector also contains a multicloning site. There are no promoters flanking the multicloning site. A biparental mating protocol was used to transfer the donor vector into the landing pad strain; insertion of the donor vector into the landing pad sector via IntA-mediated attA X attA recombination thereby interrupted the expression of the green fluorescent protein, generating site-specific cointegrants. Cointegrants were easily recognized by screening for antibiotic sensitivity and lack of GFP expression, and were obtained with an efficiency of 6.18 %. Conclusions: Integration of foreign DNA in Rhizobium, lacking any similarity with the genome, can be easily achieved by IntA-mediated recombination. This protocol contains the mating and selection procedures for creating and isolating integrants.-
dc.descriptionFil: Hernández Tamayo, Rogelio. Universidad Nacional Autónoma de México; México-
dc.descriptionFil: Torres Tejerizo, Gonzalo Arturo. Universidad Nacional Autónoma de México; México. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina-
dc.descriptionFil: Brom, Susana. Universidad Nacional Autónoma de México; México-
dc.descriptionFil: Romero, David. Universidad Nacional Autónoma de México; México-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherBioMed Central-
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1186/s12866-016-0755-y-
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://bmcmicrobiol.biomedcentral.com/articles/10.1186/s12866-016-0755-y-
dc.rightsinfo:eu-repo/semantics/openAccess-
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/-
dc.sourcereponame:CONICET Digital (CONICET)-
dc.sourceinstname:Consejo Nacional de Investigaciones Científicas y Técnicas-
dc.sourceinstacron:CONICET-
dc.subjectChromosomal integration-
dc.subjectSite-specific recombination-
dc.subjectTyrosine recombinase-
dc.subjectOtras Ciencias Biológicas-
dc.subjectCiencias Biológicas-
dc.subjectCIENCIAS NATURALES Y EXACTAS-
dc.titleSite-specific bacterial chromosome engineering mediated by IntA integrase from Rhizobium etli-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
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