Klebsiella pneumoniae is a common cause of septicemia and urinary tract infections. The PCR-supported genomic subtractive hybridization was employed to identify genes specifically present in a virulent strain of K. pneumoniae. Analysis of 25 subtracted DNA clones has revealed 19 distinct nucleotide sequences. Two of the sequences were found to be the genes encoding the transposase of Tn3926 and a capsule polysaccharide exporting enzyme. Three sequences displayed moderate homology with bvgAS, which encodes a two-component signal transduction system in Bordetella pertussis. The rest of the sequences did not exhibit homology with any known genes. The distribution of these novel sequences varied greatly in K. pneumoniae clinical isolates, reflecting the heterogeneous nature of the K. pneumoniae population.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC97829 | PMC |
| http://dx.doi.org/10.1128/IAI.68.12.7149-7151.2000 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
An insight into the genome-wide analysis of bacterial defense mechanisms in a uropathogenic Morganella morganii isolate from Bangladesh.
PLoS One
January 2025
Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh.
The gram-negative, facultative anaerobic bacterium Morganella morganii is linked to a number of illnesses, including nosocomial infections and urinary tract infections (UTIs). A clinical isolate from a UTI patient in Bangladesh was subjected to high-throughput whole genome sequencing and extensive bioinformatics analysis in order to gather knowledge about the genomic basis of bacterial defenses and pathogenicity in M. morganii.
View Article and Find Full Text PDFPhenotypic and genotypic characterization of antimicrobial resistance and virulence profiles of serotypes isolated from necropsied horses in Kentucky.
Microbiol Spectr
January 2025
Department of Veterinary Science, Martin-Gatton College of Agriculture, Food, and Environment, University of Kentucky, Lexington, Kentucky, USA.
Unlabelled: is a foodborne pathogen that poses a significant threat to global public health. It affects several animal species, including horses. infections in horses can be either asymptomatic or cause severe clinical illness.
View Article and Find Full Text PDFuniversal stress protein contributes to persistence during growth arrest and paraquat-induced superoxide stress.
J Bacteriol
January 2025
Department of Pathology, Microbiology, and Immunology, University of Nebraska Medical Center, Omaha, Nebraska, USA.
Unlabelled: is one of the most virulent bacterial pathogens known and causes the disease tularemia, which can be fatal if untreated. This zoonotic and intracellular pathogen is exposed to diverse environmental and host stress factors that require an appropriate response to survive. However, the stress tolerance mechanisms used by to persist are not fully understood.
View Article and Find Full Text PDFWhole-Genome Sequencing of Resistance, Virulence and Regulation Genes in Extremely Resistant Strains of .
Med Sci (Basel)
January 2025
Medical and Pharmaceutical Sciences Group, Faculty of Health Sciences, University of Sucre, Sincelejo 700001, Sucre, Colombia.
Background/objectives: is a clinically significant opportunistic pathogen, renowned for its ability to acquire and develop diverse mechanisms of antibiotic resistance. This study examines the resistance, virulence, and regulatory mechanisms in extensively drug-resistant clinical strains of .
Methods: Antibiotic susceptibility was assessed using the Minimum Inhibitory Concentration (MIC) method, and whole-genome sequencing (WGS) was performed on the Illumina NovaSeq platform.
sRNA113 regulates motility to affect immune response against infection in pearl gentian grouper.
Zool Res
January 2025
Fisheries College, Jimei University, Xiamen, Fujian 361021, China. E-mail:
Small RNAs (sRNAs) are a class of molecules capable of perceiving environmental changes and exerting post-transcriptional regulation over target gene expression, thereby influencing bacterial virulence and host immune responses. is a pathogenic bacterium that poses a significant threat to aquatic animal health. However, the regulatory mechanisms of sRNAs in .
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!