Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Comparative analysis of regulatory elements between Escherichia coli and Klebsiella pneumoniae by genome-wide transcription start site profiling

ABSTRACT: This SuperSeries is composed of the following subset Series: GSE35746: Comparative analysis of regulatory elements between Escherichia coli and Klebsiella pneumoniae by genome-wide transcription start site profiling [tiling arrays] GSE35821: Comparative analysis of regulatory elements between Escherichia coli and Klebsiella pneumoniae by genome-wide transcription start site profiling [TSS-Seq] Refer to individual Series

ORGANISM(S): Klebsiella pneumoniae subsp. pneumoniae MGH 78578

SUBMITTER: Donghyuk Kim

PROVIDER: E-GEOD-35822 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Comparative analysis of regulatory elements between Escherichia coli and Klebsiella pneumoniae by genome-wide transcription start site profiling [TSS-Seq]

Project description: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) followed by deep sequencing, we generated genome-wide TSS (transcription start site) maps for those two species. With experimentally derived TSS datasets, we examined usage of multiple TSSs, length of 5' UTR (untranslated region), SD (Shine-Dalgarno) sequence motif, promoter sequence motif, and dinucleotide preference near TSS site. In addition, we used the TSS datasets to identify sRNAs (small RNAs) in E. coli and K. pneumoniae. Based on these analysis, we compared regulatory elements including promoter, 5' UTR and sRNAs between two species, and investigated similarities and differences of upstream regulatory regions. Moreover, sRNAs were also compared and analyzed in terms of their sequences and target sequences, presenting possible working mechanisms of K. pneumoniae sRNAs by transferring prior knowledge from E. coli sRNAs. Examination of transcription start sites by biological duplicates from E. coli and K. pneumoniae

2012-07-30 | E-GEOD-35821 | biostudies-arrayexpress

Genome-scale reconstruction of the sigma factor network in E. coli

Project description:We report the application of single-molecule-based sequencing technology for high-throughput profiling of transcription start sites for Escherichia coli under different conditions. By obtaining sequence from 5' RACE (rapid amplification of cDNA ends) followed by deep sequencing, we generated genome-wide TSS (transcription start site) maps for E. coli. This TSS-map was integrated with ChIP-chip data generated for 6 sigma factors in E. coli, resulting in reconstruction of sigma factor network in E. coli. Examination of transcription start sites by biological duplicates from E. coli for 3 different conditions

2014-02-05 | E-GEOD-46737 | biostudies-arrayexpress

Expression analysis of Klebsiella pneumoniae MGH 78578 and capsule deletion mutant

Project description:To investigate the whole-genome gene expression difference between the wild-type and capsule deletion mutant in Klebsiella pneumoniae MGH 78578. The mutants analyzed in this study are further described in Huang T.W., Stapleton J.C., Chang H.Y., Tsai S.F., Palsson B.O., Charusanti P. Capsule removal via lambda-Red knockout system perturbs biofilm formation and fimbriae extression in Klesiella pneumoniae MGH 78578 (manuscript submission) A six chip study using total RNA recovered from three separate wild-type cultures and three separate cultures of a capsule deltion mutant of Klebsiella pneumoniae MGH 78578. The capsule gene cluster (KPN_02493 to KPN_02515) was entirely removed in the capsule deletion mutant. Each chip measures the expression level of 5,305 genes from Klebsiella pneumoniae MGH 78578 and the associated five plasmids (pKPN3, pKPN4, pKPN5, pKPN6 and pKPN7) with 50-mer oligo tiling array with 30-mer spacer.

2013-12-31 | E-GEOD-40011 | biostudies-arrayexpress

Comparative analysis of regulatory elements between Escherichia coli and Klebsiella pneumoniae by genome-wide transcription start site profiling [tiling arrays]

Project description:Investigation of whole genome gene expression level in Klebsiella pneumoniae MGH78578 grown up to mid-exponential phase in M9 minimal media supplemented with 0.2% glucose A two chip study using total RNA recovered from MGH78578 grown up to OD600nm 0.5 (mid-exponential phase) in M9 minimal media supplemented with 0.2% glucose. The high-density oligonucleotide tiling arrays used were consisted of 392,778 oligonucleotide probes spaced 30 bp apart (20-bp overlap between two probes) across the K. pneumoniae main genome and plasmids.

2012-07-29 | E-GEOD-35746 | biostudies-arrayexpress

The resistance response of Klebsiella pneumoniae against the antimicrobial peptide PaDBS1R1

Project description: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 explored as a therapeutic option. However, similarly to other antimicrobials, K. pneumoniae can develop resistance against AMPs, although it is less frequent. Therefore, understanding the resistance mechanisms developed by K. pneumoniae against AMPs could aid in the design and development of more effective AMPs. This study aimed to identify via a label-free quantitative proteomic approach the resistance mechanisms involved in the resistance response of K. pneumoniae against the AMP PaDBS1R1.

2024-01-26 | PXD033020 | Pride

Profiling of the Cellular Proteome and Phosphoproteome of Klebsiella pneumoniae under Zinc Limited and Zinc Replete Conditions

Project description:Klebsiella pneumoniae is a bacterial pathogen that causes nosocomial infection in humans and is acquiring antibiotic resistance at an alarming rate. This study investigates the effect of zinc limitation on the phosphoproteome of K. pneumoniae using quantitative mass spectrometry to provide insight into the cell signaling methods used to respond to nutrient limited conditions like those experienced when colonizing a host.

2023-03-23 | PXD041015 | Pride

Deep phosphoproteomics of Klebsiella pneumoniae reveals HipA-mediated tolerance to ciprofloxacin

Project description:Klebsiella pneumoniae belongs to the group of bacterial pathogens causing the majority of antibiotic-resistant nosocomial infections worldwide; however, the molecular mechanisms underlying post-translational regulation of its physiology are poorly understood. Here we perform a comprehensive analysis of Klebsiella phosphoproteome, focusing on HipA, a Ser/Thr kinase involved in antibiotic tolerance in Escherichia coli. We show that overproduced K. pneumoniae HipA (HipAkp) is toxic to both E. coli and K. pneumoniae and its toxicity can be rescued by overproduction of the antitoxin HipBkp. Importantly, HipAkp overproduction leads to increased tolerance against ciprofloxacin, a commonly used antibiotic in the treatment of K. pneumoniae infections. Proteome and phosphoproteome analyses in the absence and presence of ciprofloxacin confirm that HipAkp has Ser/Thr kinase activity, auto-phosphorylates at S150, and shares multiple substrates with HipAec, thereby providing a valuable resource to clarify the molecular basis of tolerance and the role of Ser/Thr phosphorylation in this human pathogen.

2024-11-21 | PXD051521 | Pride

Lon Protease-Mediated Secretome Profiling in Klebsiella pneumoniae

Project description:Lon protease is a global regulator in bacteria, affecting biofilm formation, antibiotic resistance, toxin-antitoxin complexes and proteolysis of damaged proteins. This study uses bottom-up proteomics to identify Klebsiella pneumoniae proteins with altered secretion patterns in the absence of lon and provide insight into Lon mediation of the extracellular environment.

2024-11-01 | PXD057415 | Pride

Transcriptome and marker frequency analysis of E. coli (control vs. Trimethoprim) and S. pneumoniae (control vs. HPUra/Kanamycin)

Project description:We show that treatment with HPUra (for S. pneumoniae) and trimethoprim (for E. coli) leads to a skewed gene dosage profile (increase around the origin of replication), which is also propagated to the transcriptome level. Kanamycin, however, does not have this effect. In case of S. pneumoniae this shift in gene dosage distribution leads to the population-wide activation of competence. Pairwise comparison of untreated to antibiotic-treated cells (either DNA-seq or RNA-seq). It was performed with deep sequencing, using an Illumina HiSeq 2000 machine with 100 bp read length. S. pneumoniae samples treated with kanamycin was analysed from a single sample, while all other conditions were from duplicate samples.

2014-04-10 | E-GEOD-54199 | biostudies-arrayexpress

Pneumococcus rolls epigenetic dice with a six phase random switch that controls virulence

Project description:We sequenced mRNA form 4 Streptococcus pneumoniae which expressed only a single HsdS variant of the phase variable type I restriction modification system. Samples were from mid log exponential growth phase in standard glucose containing growth medium. Examination of the mRNA profiles for evaluation of epigenetic regulation by a phase variable restriction modification system

2014-09-25 | E-GEOD-55182 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data