Constins
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Molecular analysis of an Integrative Conjugative Element, ICEH, present in the chromosome of different strains of Mycoplasma hyopneumoniae
Diversification of bacterial species and pathotypes is largely caused by lateral gene transfer (LGT) of diverse mobile DNA elements such as plasmids, phages, transposons and genomic islands. Thus, acquisition of new phenotypes by LGT is very important for bacterial evolution and relationship with hosts. This paper reports a 23 kb region containing fourteen C
Publicado em: 2010
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2. Molecular analysis of an integrative conjugative element, ICEH, present in the chromosome of different strains of Mycoplasma hyopneumoniae
Diversification of bacterial species and pathotypes is largely caused by lateral gene transfer (LGT) of diverse mobile DNA elements such as plasmids, phages, transposons and genomic islands. Thus, acquisition of new phenotypes by LGT is very important for bacterial evolution and relationship with hosts. This paper reports a 23 kb region containing fourteen C
Genetics and Molecular Biology. Publicado em: 2007
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3. Molecular Analysis of Antibiotic Resistance Gene Clusters in Vibrio cholerae O139 and O1 SXT Constins
Many recent Asian clinical Vibrio cholerae E1 Tor O1 and O139 isolates are resistant to the antibiotics sulfamethoxazole (Su), trimethoprim (Tm), chloramphenicol (Cm), and streptomycin (Sm). The corresponding resistance genes are located on large conjugative elements (SXT constins) that are integrated into prfC on the V. cholerae chromosome. We determined th
American Society for Microbiology.
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4. Formation of Chromosomal Tandem Arrays of the SXT Element and R391, Two Conjugative Chromosomally Integrating Elements That Share an Attachment Site
The SXT element, a conjugative, self-transmissible, integrating element (a constin) originally derived from a Vibrio cholerae O139 isolate from India, and IncJ element R391, originally derived from a South African Providencia rettgeri isolate, were found to be genetically and functionally related. Both of these constins integrate site specifically into the E
American Society for Microbiology.
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5. Antibiotic Resistance Conferred by a Class I Integron and SXT Constin in Vibrio cholerae O1 Strains Isolated in Laos
Changes in the drug susceptibility pattern were observed in Vibrio cholerae O1 isolated in the Lao People's Democratic Republic during 1993 to 2000. In this study, 50 V. cholerae O1 strains were selected during this period for studying the presence of class I integron and SXT constin. Twenty-four streptomycin-resistant strains out of 26 isolated before 1997
American Society for Microbiology.
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6. Molecular Genetic Analysis of ICEF, an Integrative Conjugal Element That Is Present as a Repetitive Sequence in the Chromosome of Mycoplasma fermentans PG18
Mycoplasma genomes contain compact gene sets that approach the minimal complement necessary for life and reflect multiple evolutionary instances of genomic reduction. Lateral gene transfer may play a critical role in shaping the mobile gene pool in these organisms, yet complex mobile elements have not been reported within this genus. We describe here a large
American Society for Microbiology.
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7. Mobilization of Plasmids and Chromosomal DNA Mediated by the SXT Element, a Constin Found in Vibrio cholerae O139
The Vibrio cholerae SXT element encodes resistance to multiple antibiotics and is a conjugative, self-transmissible, and chromosomally integrating element (a constin). Excision and self-transfer of the SXT element require an element-encoded integrase. We now report that the SXT element can also mobilize the plasmids RSF1010 and CloDF13 in trans as well as ch
American Society for Microbiology.