Campylobacter hominis ATCC BAA-381
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ABSTRACT:
PROVIDER: PRJNA20083 | ENA |
REPOSITORIES: ENA
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Project description:While a part of the native gut microflora, the Gram-positive bacterium Enterococcus faecalis can lead to serious infections elsewhere in the body. The draft genome of E. faecalis strain ATCC BAA-2128, isolated from piglet feces, was examined. This draft genome consists of 42 contigs, 12 of which exhibit homology to annotated plasmids.
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Project description:Iodine is one of the oldest antimicrobial agents. Until now, there have been no reports on acquiring resistance to iodine. Recent studies showed promising results on application of iodine-containing nano-micelles, FS-1, against antibiotic-resistant pathogens as a supplement to antibiotic therapy. The mechanisms of the action, however, remain unclear. The aim of this study was to perform a holistic analysis and comparison of gene regulation in three phylogenetically distant multidrug-resistant reference strains representing pathogens associated with nosocomial infections from the ATCC culture collection: Escherichia coli BAA-196, Staphylococcus aureus BAA-39, and Acinetobacter baumannii BAA-1790. These cultures were treated by a 5-min exposure to sublethal concentrations of the iodine-containing drug FS-1 applied in the late lagging phase and the middle of the logarithmic growth phase. Complete genome sequences of these strains were obtained in the previous studies. Gene regulation was studied by total RNA extraction and Ion Torrent sequencing followed by mapping the RNA reads against the reference genome sequences and statistical processing of read counts using the DESeq2 algorithm. It was found that the treatment of bacteria with FS-1 profoundly affected the expression of many genes involved in the central metabolic pathways; however, alterations of the gene expression profiles were species specific and depended on the growth phase. Disruption of respiratory electron transfer membrane complexes, increased penetrability of bacterial cell walls, and osmotic and oxidative stresses leading to DNA damage were the major factors influencing the treated bacteria.IMPORTANCE Infections caused by antibiotic-resistant bacteria threaten public health worldwide. Combinatorial therapy in which antibiotics are administered together with supplementary drugs improving susceptibility of pathogens to the regular antibiotics is considered a promising way to overcome this problem. An induction of antibiotic resistance reversion by the iodine-containing nano-micelle drug FS-1 has been reported recently. This drug is currently under clinical trials in Kazakhstan against multidrug-resistant tuberculosis. The effects of released iodine on metabolic and regulatory processes in bacterial cells remain unexplored. The current work provides an insight into gene regulation in the antibiotic-resistant nosocomial reference strains treated with iodine-containing nanoparticles. This study sheds light on unexplored bioactivities of iodine and the mechanisms of its antibacterial effect when applied in sublethal concentrations. This knowledge will aid in the future design of new drugs against antibiotic-resistant infections.
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Project description:Klebsiella variicola F2R9 was isolated from banana root, and its sequence has been deposited as ATCC BAA-830. It corresponds to sequence type 11 (ST11) and KL16 and contains no identifiable plasmids. The genome showed few antimicrobial resistance and virulence genes and several plant association genes. The strain showed susceptibility to most antimicrobials and avirulent behavior.
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Project description:A highly pathogenic Campylobacter jejuni clone has recently emerged as the major cause of Campylobacter-associated sheep abortion in the U.S. and is also associated with foodborne gastroenteritis in humans. A distinct phenotype of this clone is its ability to induce bacteremia and abortion. To facilitate understanding the pathogenic mechanisms of this hyper virulent clone, the differences in global gene expression patterns between this hyper virulent clone (IA3902) and a non-abortifacient strain (NCTC 11168) were compared by DNA microarray.
2013-03-29 | GSE45601 | GEO
Project description:Halomonas strain GFAJ-1 was reported in Science magazine to be a remarkable microbe for which there was "arsenate in macromolecules that normally contain phosphate, most notably nucleic acids." The draft genome of the bacterium was determined (NCBI accession numbers AHBC01000001 through AHBC01000103). It appears to be a typical gamma proteobacterium.
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Project description:Here we report the completely annotated genome sequence of the Helicobacter cinaedi type strain (ATCC BAA-847), which is an emerging pathogen that causes cellulitis and bacteremia. The genome sequence will provide new insights into the diagnosis, pathogenic mechanisms, and drug resistance of H. cinaedi.
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Project description:A pathogenic protozoan that causes acute gastroenteritis and diarrhea in humans
| PRJNA13200 | ENA
Project description:A highly pathogenic Campylobacter jejuni clone has recently emerged as the major cause of Campylobacter-associated sheep abortion in the U.S. and is also associated with foodborne gastroenteritis in humans. A distinct phenotype of this clone is its ability to induce bacteremia and abortion. To facilitate understanding the pathogenic mechanisms of this hyper virulent clone, the differences in global gene expression patterns between this hyper virulent clone (IA3902) and a non-abortifacient strain (NCTC 11168) were compared by DNA microarray. One-condition experiment, IA3902 vs NCTC11168. Biological replicates: 3 IA3902 , 3 NCTC11168. One replicate per array.
2013-03-29 | E-GEOD-45601 | biostudies-arrayexpress
Project description:We report here the whole-genome sequence of the USA300 strain of methicillin-resistant Staphylococcus aureus (MRSA), designated ATCC BAA-1680, and commonly referred to as community-associated MRSA (CA-MRSA). This clinical MRSA isolate is commercially available from the American Type Culture Collection (ATCC) and is widely utilized as a control strain for research applications and clinical diagnosis. The isolate was propagated in ATCC medium 18, tryptic soy agar, and has been utilized as a model S. aureus strain in several studies, including MRSA genetic analysis after irradiation with 470-nm blue light.
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