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Proteomic analysis of E. coli K-12 MG1655 with the treatment of antidepressants

ABSTRACT: Proteomics analyses were conducted to reveal bacterial responses towards antidepressants on translational level.

INSTRUMENT(S): 4800 Proteomics Analyzer

ORGANISM(S): Escherichia Coli

SUBMITTER: Jianhua Guo

LAB HEAD: Jianhua Guo

PROVIDER: PXD033554 | Pride | 2023-10-24

REPOSITORIES: Pride

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Dataset's files

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			Action	DRS
	20190816_T1_004.raw	Raw
	20190816_T1_004cwt	Other
	20190816_T1_006.raw	Raw
	20190816_T1_006cwt	Other
	20190816_T1_008.raw	Raw

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1 - 5 of 136

Publications

Antidepressants can induce mutation and enhance persistence toward multiple antibiotics.

Wang Yue Y Yu Zhigang Z Ding Pengbo P Lu Ji J Mao Likai L Ngiam Lyman L Yuan Zhiguo Z Engelstädter Jan J Schembri Mark A MA Guo Jianhua J

Proceedings of the National Academy of Sciences of the United States of America 20230123 5

Antibiotic resistance is an urgent threat to global health. Antidepressants are consumed in large quantities, with a similar pharmaceutical market share (4.8%) to antibiotics (5%). While antibiotics are acknowledged as the major driver of increasing antibiotic resistance, little attention is paid to the contribution of antidepressants in this process. Here, we demonstrate that antidepressants at clinically relevant concentrations induce resistance to multiple antibiotics, even following short pe ...[more]

PMID: 36689653

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Bacteria proteomics under antidepressants exposure

Project description:This project conducted proteomics on A.baylyi ADP1, E. coli K12 and P. putita KT2440 after treated with a few commonly-prescribed antidepressant (duloxetine, sertraline, fluoxetine, bupropion, escitalopram and agomelatine). The results with help to reveal how those antidepressants can promote the transfer of antibiotic resistance genes in those treated bacteria.

2024-01-26 | PXD028020 | Pride

Proteomic analysis of Acinetobacter baylyi ADP1 under exposure to artificial sweeteners

Project description:The goals of this project are to use a liquid chromatography-tandem mass spectrometer (LC-MS/MS) to detect bacterial proteomic profiles of Acinetobacter baylyi ADP1 and their quantitative protein responses under exposure to 30 mg/L of artificial sweeteners (saccharine, sucralose, aspartame, and acesulfame potassium). The control group without artificial sweeteners exposure was also set up for comparison. Each treatment was conducted in biological triplicate. By comparing the proteomic profiles of artificial sweeteners-treated groups and control group, the effects of artificial sweeteners on bacterial translational levels can be revealed.

2022-02-17 | PXD027117 | Pride

Next Generation Sequencing Facilitates Quantitative Analysis of antidepressants stressed E. coli K-12 MG1655 Transcriptomes

Project description:The goals of this study are to use Next-generation sequencing (NGS) to detect bacterial mRNA profiles of wild-type E. coli K-12 MG1655 and its mutants, and their mRNA response under the exposure of five antidepressants, including sertraline, duloxetine, bupropion, escitalopram and agomelatine. The concentrations were 50 mg/L for the treatment. For sertraline, in addition to 50 mg/L, 1 mg/L was also applied. The group without dosing antidepressants was the control group. Each concentration was conducted in triplicate. By comparing the mRNA profiles of experimental groups and control group, the effects of these five antidepressants on transcriptional levels can be revealed. Illumina HiSeq 2500 was applied. The NGS QC toolkit (version 2.3.3) was used to treat the raw sequence reads to trim the 3’-end residual adaptors and primers, and the ambiguous characters in the reads were removed. Then, the sequence reads consisting of at least 85% bases were progressively trimmed at the 3’-ends until a quality value ≥ 20 were kept. Downstream analyses were performed using the generated clean reads of no shorter than 75 bp. The clean reads of each sample were aligned to the E. coli MG1655 reference genome (NC_000913.3) using SeqAlto (version 0.5). Cufflinks (version 2.2.1) was used to calculate the strand-specific coverage for each gene, and to analyze the differential expression in triplicate bacterial cell cultures. The statistical analyses and visualization were conducted using CummeRbund package in R (http://compbio.mit.edu/cummeRbund/). Gene expression was calculated as fragments per kilobase of a gene per million mapped reads (FPKM, a normalized value generated from the frequency of detection and the length of a given gene.

2023-03-01 | GSE201666 | GEO

RNA-seq analysis of Escherichia coli str. K-12 substr. MG1655

Project description:Expression profiles of wild-type and SgrR mutant E. coli strains under aMG and 2-DG-induced stress. Expression profiles of E. coli overexpressing SgrS sRNA. Illumina RNA-Seq of total RNA extracted from wild-type, SgrR/SgrS mutant and SgrS overexpressing E. coli strains grown in different conditions.

2013-03-26 | E-GEOD-45443 | biostudies-arrayexpress

The PurR regulon in Escherichia coli K-12 MG1655.

Project description:The PurR transcription factor plays a critical role in transcriptional regulation of purine metabolism in enterobacteria. Here, we elucidate the role of PurR under exogenous adenine stimulation at the genome-scale using high-resolution chromatin immunoprecipitation (ChIP)-chip and gene expression data obtained under in vivo conditions. Analysis of microarray data revealed that adenine stimulation led to changes in transcript level of about 10% of Escherichia coli genes, including the purine biosynthesis pathway. The E. coli strain lacking the purR gene showed that a total of 56 genes are affected by the deletion. From the ChIP-chip analysis, we determined that over 73% of genes directly regulated by PurR were enriched in the biosynthesis, utilization and transport of purine and pyrimidine nucleotides, and 20% of them were functionally unknown. Compared to the functional diversity of the regulon of the other general transcription factors in E. coli, the functions and size of the PurR regulon are limited.

| S-EPMC3159470 | biostudies-literature

MG1655 Flagellar Regulators RNA-seq

Project description:This experiment contains RNA-seq data for a motile derivative of MG1655 and isogenic strains with deletions of each flagellar regulator: flhD, flhC, and fliA. All strains were grown at 37 degrees C in LB. After RNA purification, ribosomal RNA was removed using RiboZero and a library was made of remaining total RNA.

2014-08-01 | E-MTAB-2802 | biostudies-arrayexpress

Systematic discovery of uncharacterized transcription factors in Escherichia coli K-12 MG1655.

Project description:Transcriptional regulation enables cells to respond to environmental changes. Of the estimated 304 candidate transcription factors (TFs) in Escherichia coli K-12 MG1655, 185 have been experimentally identified, but ChIP methods have been used to fully characterize only a few dozen. Identifying these remaining TFs is key to improving our knowledge of the E. coli transcriptional regulatory network (TRN). Here, we developed an integrated workflow for the computational prediction and comprehensive experimental validation of TFs using a suite of genome-wide experiments. We applied this workflow to (i) identify 16 candidate TFs from over a hundred uncharacterized genes; (ii) capture a total of 255 DNA binding peaks for ten candidate TFs resulting in six high-confidence binding motifs; (iii) reconstruct the regulons of these ten TFs by determining gene expression changes upon deletion of each TF and (iv) identify the regulatory roles of three TFs (YiaJ, YdcI, and YeiE) as regulators of l-ascorbate utilization, proton transfer and acetate metabolism, and iron homeostasis under iron-limited conditions, respectively. Together, these results demonstrate how this workflow can be used to discover, characterize, and elucidate regulatory functions of uncharacterized TFs in parallel.

| S-EPMC6237786 | biostudies-literature

Identification of new members of the Escherichia coli K-12 MG1655 SlyA regulon.

Project description:SlyA is a member of the MarR family of bacterial transcriptional regulators. Previously, SlyA has been shown to directly regulate only two operons in Escherichia coli K-12 MG1655, fimB and hlyE (clyA). In both cases, SlyA activates gene expression by antagonizing repression by the nucleoid-associated protein H-NS. Here, the transcript profiles of aerobic glucose-limited steady-state chemostat cultures of E. coli K-12 MG1655, slyA mutant and slyA over-expression strains are reported. The transcript profile of the slyA mutant was not significantly different from that of the parent; however, that of the slyA expression strain was significantly different from that of the vector control. Transcripts representing 27 operons were increased in abundance, whereas 3 were decreased. Of the 30 differentially regulated operons, 24 have previously been associated with sites of H-NS binding, suggesting that antagonism of H-NS repression is a common feature of SlyA-mediated transcription regulation. Direct binding of SlyA to DNA located upstream of a selection of these targets permitted the identification of new operons likely to be directly regulated by SlyA. Transcripts of four operons coding for cryptic adhesins exhibited enhanced expression, and this was consistent with enhanced biofilm formation associated with the SlyA over-producing strain.

| S-EPMC5797941 | biostudies-literature

Highly accurate genome sequences of Escherichia coli K-12 strains MG1655 and W3110.

Project description:With the goal of solving the whole-cell problem with Escherichia coli K-12 as a model cell, highly accurate genomes were determined for two closely related K-12 strains, MG1655 and W3110. Completion of the W3110 genome and comparison with the MG1655 genome revealed differences at 267 sites, including 251 sites with short, mostly single-nucleotide, insertions or deletions (indels) or base substitutions (totaling 358 nucleotides), in addition to 13 sites with an insertion sequence element or defective prophage in only one strain and two sites for the W3110 inversion. Direct DNA sequencing of PCR products for the 251 regions with short indel and base disparities revealed that only eight sites are true differences. The other 243 discrepancies were due to errors in the original MG1655 sequence, including 79 frameshifts, one amino-acid residue deletion, five amino-acid residue insertions, 73 missense, and 17 silent changes within coding regions. Errors in the original MG1655 sequence (<1 per 13,000 bases) were mostly within portions sequenced with out-dated technology based on radioactive chemistry.

| S-EPMC1681481 | biostudies-literature

NotI genomic cleavage map of Escherichia coli K-12 strain MG1655.

Project description:Several approaches were used to construct a complete NotI restriction enzyme cleavage map of the genome of Escherichia coli MG1655. The approaches included use of transposable element insertions that created auxotrophic mutations and introduced a NotI site into the genome, hybridization of NotI fragments to the ordered lambda library constructed by Kohara et al. (BioTechniques 10:474-477, 1991), Southern blotting of NotI digests with cloned genes as probes, and analysis of the known E. coli DNA sequence for NotI sites. In all, 22 NotI cleavage sites were mapped along with 26 transposon insertions. These sites were localized to clones in the lambda library and, when possible, sequenced genes. The map was compared with that of strain EMG2, a wild-type E. coli K-12 strain, and several differences were found, including a region of about 600 kb with an altered restriction pattern and an additional fragment in MG1655. Comparison of MG1655 with other strains revealed minor differences but indicated that this map was representative of that for many commonly used E. coli K-12 strains.

| S-EPMC205750 | biostudies-other

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