Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Genome-wide Transcriptional Profiling of Bacillus subtilis in response to valinomycin and CCCP

ABSTRACT: Valinomycin is a cyclic depsipeptide antibiotic produced by Streptomyces fulvissimus, and also known as K+ ion-selective ionophore, that has been studied and used in research for over half of century. The broad antimicrobial activity of valinomycin is reported as an effect of the disturbance of ionic equilibrium and transmembrane potential that may influence the whole organism and then cause fatal consequences. CCCP, carbonyl cyanide 3-chlorophenylhydrazone, is a member of the lipophilic weak acid class and acts essentially as an ionophore and can reduce the overall metabolic activity of the cell, causing severe defects of cell growth. In this study, we investigated the global cellular response of Gram-positive model bacterium Bacillus subtilis upon exposure to valinomycin as well as CCCP by genome-wide transcriptional profiling using RNA sequencing technique, aimed to unveil the underlying regulatory network of the stress response.

ORGANISM(S): Bacillus subtilis

PROVIDER: GSE160346 | GEO | 2025/10/28

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Gene expression in Escherichia coli treated with human PGRP, gentamicin, and CCCP

Project description:Human Peptidoglycan Recognition Proteins (PGRPs) kill bacteria, likely by over-activating stress responses in bacteria. To gain insight into the mechanism of PGRP killing of Escherichia coli and bacterial defense against PGRP killing, gene expression in E. coli treated with a control protein (bovine serum albumin, BSA), human recombinant PGRP (PGLYRP4), gentamicin (aminoglycoside antibiotic), and CCCP (membrane potential decoupler) were compared. Each treatment induced unique and somewhat overlapping pattern of gene expression. PGRP highly increased expression of genes for oxidative and disulfide stress, detoxification and efflux of Cu, As, and Zn, repair of damaged proteins and DNA, methionine and histidine synthesis, energy generation, and Fe-S clusters repair. PGRP also caused marked decrease in the expression of genes for Fe uptake and motility. Gene expression microarray in E. coli exposed to a human bactericidal innate immunity protein, PGRP, showed induction of oxidative stress response and defense genes, with different expression pattern than E. coli exposed to an aminoglycoside antibiotic and a membrane potential decoupler. E. coli was treated with PGRP (human recombinant PGLYRP4), gentamicin, or CCCP (carbonyl cyanide 3-chlorophenylhydrazone). RNA was obtained from each culture and assayed for gene expression using whole genome Affymetrix E. coli Genome 2.0 Array. Each experiment was repeated 3 times.

2014-07-25 | E-GEOD-44211 | biostudies-arrayexpress

Gene expression in Bacillus subtilis treated with human PGRP, gentamicin, and CCCP

Project description:Human Peptidoglycan Recognition Proteins (PGRPs) kill bacteria, likely by over-activating stress responses in bacteria. To gain insight into the mechanism of PGRP killing of Bacillus subtilis and bacterial defense against PGRP killing, gene expression in B. subtilis treated with a control protein (bovine serum albumin, BSA), human recombinant PGRP (PGLYRP4), gentamicin (aminoglycoside antibiotic), and CCCP (membrane potential decoupler) were compared. Each treatment induced unique and somewhat overlapping pattern of gene expression. PGRP highly increased expression of genes for oxidative and disulfide stress, detoxification and efflux of Cu, As, and Zn, several transporters, repair of damaged proteins and DNA, energy generation, histidine and cysteine synthesis, envelope lysis and remodeling, and other stress responses. PGRP also caused marked decrease in the expression of genes for phosphate uptake and utilization, Fe uptake, and motility. Gene expression microarray in B. subtilis exposed to a human bactericidal innate immunity protein, PGRP, showed induction of oxidative stress response and defense genes, with different expression pattern than B. subtilis exposed to an aminoglycoside antibiotic and a membrane potential decoupler. B. subtilis was treated with PGRP (human recombinant PGLYRP4), gentamicin, or CCCP (carbonyl cyanide 3-chlorophenylhydrazone). RNA was obtained from each culture and assayed for gene expression using custom whole genome Affymetrix 900513 GeneChip B. subtilis Genome Array. Each experiment was repeated 3 times.

2014-07-25 | E-GEOD-44212 | biostudies-arrayexpress

Time-series of transcriptome analysis of Bacillus subtilis response to 25 mM potassium acetate and 0.85 µM CCCP

Project description:The advent of ‘omics’ techniques bear significant potential for the assessment of the microbiological stability of foods. This requires the integration of molecular data with their implication for cellular physiology. Here we performed a comparative physiological and transcriptional analysis of Bacillus subtilis stressed with three different weak organic acids: the commonly used food preservatives sorbic- and acetic- acid, plus the well-known uncoupler carbonyl cyanide-m-chlorophenyl hydrazone (CCCP). The concentration of each compound needed to cause a similar reduction of the growth rate negatively correlated with their membrane solubility, and positively with the concentration of undissociated acid. Intracellular acidification was demonstrated by expressing a pH-sensitive GFP derivative. The largest drop in intracellular pH was observed in CCCP-stressed cells and was accompanied by the transcriptional induction of the general stress response (GSR) and SigM regulon, responses known to be induced by acidification. The GSR was induced by acetate, but not by sorbate in mildly-stressed cells. Microarray analysis further revealed that all three acids activate transcriptional programs normally seen upon nutrient limitation and cause diverse responses indicative of an adaptation of the cell envelope. Based on the responses observed and the utilized pH measurements, the inhibitory effect of sorbic acid seems to be more focused on the cell membrane than that of acetic acid or CCCP.

2014-04-11 | GSE55051 | GEO

Time-series of transcriptome analysis of Bacillus subtilis response to 25 mM potassium acetate and 0.85 M-BM-5M CCCP

Project description:The advent of M-bM-^@M-^XomicsM-bM-^@M-^Y techniques bear significant potential for the assessment of the microbiological stability of foods. This requires the integration of molecular data with their implication for cellular physiology. Here we performed a comparative physiological and transcriptional analysis of Bacillus subtilis stressed with three different weak organic acids: the commonly used food preservatives sorbic- and acetic- acid, plus the well-known uncoupler carbonyl cyanide-m-chlorophenyl hydrazone (CCCP). The concentration of each compound needed to cause a similar reduction of the growth rate negatively correlated with their membrane solubility, and positively with the concentration of undissociated acid. Intracellular acidification was demonstrated by expressing a pH-sensitive GFP derivative. The largest drop in intracellular pH was observed in CCCP-stressed cells and was accompanied by the transcriptional induction of the general stress response (GSR) and SigM regulon, responses known to be induced by acidification. The GSR was induced by acetate, but not by sorbate in mildly-stressed cells. Microarray analysis further revealed that all three acids activate transcriptional programs normally seen upon nutrient limitation and cause diverse responses indicative of an adaptation of the cell envelope. Based on the responses observed and the utilized pH measurements, the inhibitory effect of sorbic acid seems to be more focused on the cell membrane than that of acetic acid or CCCP. Time-series of B. subtilis response to 25 mM potassium acetate and 0.85 M-BM-5M CCCP during controlled growth in batch-fermentors in defined minimal medium (pH 6.4). Samples for microarrays were taken from both the treated and control cultures at 0, 10, 20, 30, 40, and 50 min after addition of acetate and CCCP. Two biologically independent experiments were performed.

2014-04-11 | E-GEOD-55051 | biostudies-arrayexpress

High-throughput identification of the impact of ΔrecA mutation on sensitivities to various chemical compounds in Escherichia coli

Project description:Antibiotic resistance is currently considered as a global threat to public health. It was shown that adaptive resistance mutation and acquisition of resistance genes by horizontal gene transfer are facilitated by RecA-dependent SOS response during antibiotic treatment. In this study, we performed high-throughput determination of minimal inhibitory concentrations (MICs) of 214 chemicals including not only various kinds of antibiotics but also toxic chemicals of unknown drug action in Escherichia coli wild-type MDS42 strain and the ΔrecA mutant strain. The ΔrecA mutant showed increased sensitivity to DNA-damaging agents, DNA replication inhibitors, and chromate stress. The ΔrecA mutant also showed increased sensitivity to chemicals other than DNA-damaging agents such as S-(2-aminoethyl)- l-cysteine, l-histidine, ruthenium red, D-penicillamine, carbonyl cyanide 3-chlorophenylhydrazone (CCCP), cerulenin, and l-cysteine. Microarray analysis showed that expressions of glnK, nac, and glnLG encoding nitrogen assimilation regulators together with amtB encoding ammonium transporter decreased in the ΔrecA mutant strain. These results suggest that ΔrecA mutation affect not only SOS response but also nitrogen assimilation.

2019-02-24 | GSE121218 | GEO

Temporary specific alternations in the nascent proteome of HEK293T cells in response to mitochondrial stress induced by carbonyl cyanide m-chlorophenyl hydrazine

Project description:This dataset elucidates the remodeling of the nascent proteome before and upon global translation attenuation in response to transient mitochondrial depolarization by carbonyl cyanide m-chlorophenyl hydrazine (CCCP). During and following CCCP treatment, nascent proteome in short (30min) time windows was metabolically labelled with L-azidehomoalanine (AHA) using the BioOrthogonal Non-Canonical Amino acid Tagging (BONCAT) methodology. AHA incorporation sites were further derivatized with biotin-PEG4-alkyne by click chemistry upon cell lysis, proteins were digested with trypsin, nascent biotinylated peptides enriched and quantified.

2024-10-02 | PXD043942 | Pride

Transcriptional Profiling of Daptomycin Induced Staphylococcus aureus

Project description:Daptomycin is a lipopeptide antibiotic that has recently been approved for treatment of Gram-positive bacterial infections. The mode of action of daptomycin is not yet entirely clear. To further understand the mechanism transcriptomic analysis of changes in gene expression in daptomycin-treated Staphylococcus aureus was carried out. The expression profile indicated that cell wall stress stimulon member genes (B. J. Wilkinson, A. Muthaiyan, and R. K. Jayaswal. 2005. Curr. Med. Chem. Anti-Infective Agents 4: 259-276) were significantly induced by daptomycin, and by the cell wall-active antibiotics vancomycin and oxacillin. Comparison of the daptomycin response of a two-component cell wall stress stimulon regulator VraSR mutant, S. aureus KVR, to its parent N315 showed diminished expression of the cell wall stress stimulon in the mutant. Daptomycin has been proposed to cause membrane depolarization, and the transcriptional responses to carbonyl cyanide m-chlorophenylhydrazone (CCCP) and nisin were determined. Transcriptional profiles of the responses to these antimicrobial agents showed significantly different patterns compared to those of the cell wall-active antibiotics, including little or no induction of the cell wall stress stimulon. However, there were a significant number of genes induced by both CCCP and daptomycin that were not induced by oxacillin or vancomycin, such that the daptomycin transcriptome was probably reflecting a membrane depolarizing activity of this antimicrobial also. The results indicate that inhibition of peptidoglycan biosynthesis, either directly or indirectly, and membrane depolarization are parts of the mode of action of daptomycin. Keywords: mode of action, transcriptional profiling

2007-12-25 | GSE9494 | GEO

Analysis of neuronal phosphoproteome reveals PINK1 regulation of BAD function and cell death

Project description:We interrogated whether there existed a broader effect of PINK1-dependent phosphorylation after mitochondrial damage by utilizing primary cultured neurons from WT and Pink1 KO mice. Because persistent depolarization leads to mitochondrial damage {}, we treated cultured neurons with the protonophore carbonyl cyanide m-chlorophenyl hydrazine (CCCP) and blotted for PINK1. Consistent with previous studies, CCCP treatment results in an upregulation of endogenous PINK1 in WT neurons. Endogenous PINK1 is undetectable in Pink1 KO neurons with CCCP treatment.Overall, our phosphoproteome analysis of biological duplicates experiments quantified 10930 and 7207 phosphorylation sites, respectively, from the early (designated as 15-45 min) and late (designated as 2-6 hr) treatment time points

2017-04-14 | MSV000080923 | MassIVE

Analysis of phosphoproteome reveals PINK1 regulation of BAD function and cell death

Project description:We interrogated whether there existed a broader effect of PINK1-dependent phosphorylation after mitochondrial damage by utilizing primary cultured neurons from WT and Pink1 KO mice. Because persistent depolarization leads to mitochondrial damage, we treated cultured neurons with the protonophore carbonyl cyanide m-chlorophenyl hydrazine (CCCP) and blotted for PINK1. Overall, our phosphoproteome analysis of biological duplicates experiments quantified 10930 and 7207 phosphorylation sites, respectively, from the early (designated as 15-45 min) and late (designated as 2-6 hr) treatment time points.

2017-04-08 | MSV000080893 | MassIVE

Transcriptome analysis after CCCP and/or DHA treatment in uveal melanoma cells

Project description:In order to study the mechanism of CCCP combined with DHA treatment in uveal melanoma, we applied RNA-seq to identify its target genes in ocular melanoma.

2024-06-01 | GSE176474 | GEO

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