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MetabolomicsIdentification of BolA protein reveals a novel virulence factor in Klebsiella pneumoniae that contributes to liver abscess in mice

BolA has been characterized as an important transcriptional regulator, which is induced in the stationary phase of growth and is often associated with bacterial virulence. This study was initiated to elucidate the role of the BolA in the virulence of K. pneumoniae. Using a mous...

2022-09-13 | MTBLS2712 | MetaboLights
TranscriptomicsComparative analysis of regulatory elements between Escherichia coli and Klebsiella pneumoniae by genome-wide transcription start site profiling [TSS-Seq]
We report the application of single-molecule-based sequencing technology for high-throughput profiling of transcription start sites for two enterobacteria: Escherichia coli and Klebsiella pneumoniae.By obtaining over fourteen billion bases of sequence from 5' RACE (rapid amplification of cDNA ends) ...
ORGANISM(S): Escherichia coli K-12 
2012-07-30 | E-GEOD-35821 | biostudies-arrayexpress
MetabolomicsLeucine degradation metabolite ratio as a measure of meropenem susceptibility in carbapenem-resistant Klebsiella pneumoniae

Rapid detection of carbapenem-resistant Klebsiella pneumoniae (CRKP) is essential for effective clinical management and surveillance. This study investigated volatile organic compounds (VOCs) as phenotypic biomarkers of carbapenem resistance, with the goal of developing a translationally...

2026-06-09 | MTBLS13539 | MetaboLights
MetabolomicsDysregulation of Streptococcus pneumoniae zinc homeostasis breaks ampicillin resistance in a pneumonia infection model

Streptococcus pneumoniae is the primary cause of community-acquired bacterial pneumonia with rates of penicillin and multi-drug resistance exceeding 80% and 40%, respectively. The innate immune response generates a variety of antimicrobial agents to control infection including zinc stres...

2022-02-23 | MTBLS318 | MetaboLights
TranscriptomicsKlebsiella pneumoniae: WT vs. Hfq mutant
Transcriptional profiling of K. pneumoniae comparing the wild type strain (S5) with a hfq deletion mutant (H0201). Goal was to determine the effects of Hfq absence on global K. pneumoniae gene expression. WT vs. Hfq mutant. Eight replicates for each ORF presented in the 44K array.
ORGANISM(S): Klebsiella pneumoniae 
2013-01-11 | E-GEOD-29448 | biostudies-arrayexpress
MetabolomicsGenome-wide mapping of genetic suppression events in Streptococcus pneumoniae
Historically, suppressor analysis has been a powerful tool for uncovering the functions of essential genes. In this study, we report Sup-seq, a transposon-sequencing technique with random DNA barcodes that enables genome-wide detection of genetic suppression. When applied to seven essential genes in...
2026-09-01 | MTBLS15113 | MetaboLights
MetabolomicsCell Membrane Remodeling Mediates Polymyxin B Resistance in Klebsiella pneumoniae: An Integrated Proteomics and Metabolomics Study
Polymyxin B (PB) is introduced into the clinic as the last-line therapy against carbapenem-resistant Klebsiella pneumoniae (CRKP). Unfortunately, increased resistance to PB in Klebsiella pneumoniae (K. pneumoniae) has threatened global health. Resistance of K. pneumoniae ...
2022-03-04 | MTBLS4132 | MetaboLights
TranscriptomicsElucidating the RamA Regulon in Klebsiella pneumoniae
Directional RNAseq analyses was undertaken in Klebsiella pneumoniae Ecl8 and isogenic mutants Ecl8delta ramA and Ecl8delta ramR to determine the RamA regulon. All samples were grown in Luria Bertani broth until OD600 approx 0.6 prior to RNA extraction. Differential expression was determined using DE...
ORGANISM(S): Klebsiella pneumoniae 
2014-08-15 | E-ERAD-122 | biostudies-arrayexpress
TranscriptomicsChromosome segregation in Streptococcus pneumoniae
Segregation of replicated chromosomes during cell division is an essential process in all organisms. Chromosome segregation is promoted by the action of the DNA-binding ParB protein in the rod-shaped model bacterium Bacillus subtilis. How oval shaped bacteria, such as the human pathogen Streptococcu...
ORGANISM(S): Streptococcus pneumoniae 
2011-06-11 | E-GEOD-26839 | biostudies-arrayexpress
ProteomicsThe resistance response of Klebsiella pneumoniae against the antimicrobial peptide PaDBS1R1
Klebsiella pneumoniae is an antibiotic-resistant bacteria associated with severe infections, which has led to the search for new antimicrobial drugs to face these infections. Antimicrobial peptides (AMPs) are antimicrobials that exert anti-K. pneumoniae activity. Consequently, AMPs have been explore...
ORGANISM(S): Klebsiella pneumoniae 
2024-01-26 | PXD033020 | Pride
Normalyzerde Metamorpheus Mplex G-ptm-d Proteomics Mass spectrometry 
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