C
Cecilia Quiroga
Researcher at University of Buenos Aires
Publications - 29
Citations - 887
Cecilia Quiroga is an academic researcher from University of Buenos Aires. The author has contributed to research in topics: Integron & Shewanella. The author has an hindex of 12, co-authored 27 publications receiving 750 citations. Previous affiliations of Cecilia Quiroga include McGill University & Laval University.
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Journal ArticleDOI
A new type V toxin-antitoxin system where mRNA for toxin GhoT is cleaved by antitoxin GhoS
Xiaoxue Wang,Dana M. Lord,Hsin Yao Cheng,Devon O. Osbourne,Seok Hoon Hong,Viviana Sanchez-Torres,Cecilia Quiroga,Kevin Zheng,Torsten Herrmann,Wolfgang Peti,Michael J. Benedik,Rebecca Page,Thomas K. Wood +12 more
TL;DR: YjdO (renamed GhoT) is a membrane lytic peptide that causes ghost cell formation and increases persistence and is the first type V TA system where a protein antitoxin inhibits the toxin by cleaving specifically its mRNA.
Journal ArticleDOI
Complex Class 1 Integrons with Diverse Variable Regions, Including aac(6′)-Ib-cr, and a Novel Allele, qnrB10, Associated with ISCR1 in Clinical Enterobacterial Isolates from Argentina
María Paula Quiroga,Patricia Andres,Alejandro Petroni,Alfonso J. C. Soler Bistue,Leonor Guerriero,Liliana Jordá Vargas,Angeles Zorreguieta,M Tokumoto,Cecilia Quiroga,Marcelo E. Tolmasky,Marcelo Galas,Daniela Centrón +11 more
TL;DR: Three complex class 1 integrons harboring the novel allele qnrB10 in a unique region downstream of orf513 are described, one of them also containing aac(6′)-Ib-cr within the variable region of integrons.
Journal ArticleDOI
RalR (a DNase) and RalA (a small RNA) form a type I toxin–antitoxin system in Escherichia coli
Yunxue Guo,Cecilia Quiroga,Qin Chen,Michael J. McAnulty,Michael J. Benedik,Thomas K. Wood,Thomas K. Wood,Xiaoxue Wang +7 more
TL;DR: It is demonstrated that RalR and RalA of the cryptic prophage rac form a type I TA pair in which the antitoxin RNA is a trans-encoded small RNA with 16 nucleotides of complementarity to the toxin mRNA.
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Novel Rearrangement of a Class 2 Integron in Two Non-Epidemiologically Related Isolates of Acinetobacter baumannii
TL;DR: This novel transposon was inserted in its preferred site downstream of the glms gene in Acinetobacter baumannii and Acquisition of the pseudocassette catB2 could have arisen by a secondary-site integrase-mediated intermolecular recombination event.
Journal ArticleDOI
Polyclonal spread of blaOXA-23 and blaOXA-58 in Acinetobacter baumannii isolates from Argentina
Andrea Karina Merkier,Mariana Catalano,Maria Soledad Ramirez,Cecilia Quiroga,Betina Orman,Laura Ratier,Angela Famiglietti,Carlos Vay,Ana Di Martino,Sara Kaufman,Daniela Centrón +10 more
TL;DR: The genetic structures surrounding the oxacillinase genes found in bacterial isolates revealed a particular epidemiology in the authors' geographical region and suggests the need of local molecular surveillance to help control multirresistance Acinetobacter baumannii infections.