Acinetobacter baylyi BD4
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ABSTRACT:
PROVIDER: PRJNA168473 | ENA |
REPOSITORIES: ENA
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Project description:The bacterial type VI secretion system is a widespread secretion mechanism important for competition in many Gram-negative bacteria. Killing and lysing of competing bacteria can provide advantages such as nutrients or acquisition of new genes by DNA uptake. Here, we show that T6SS-dependent lysis of prey cells by the naturally competent Acinetobacter baylyi results in extensive filamentation of a significant subpopulation of A. baylyi cells. This is dependent on the release of genomic DNA from the lysed prey cells and its uptake by the competence system of A. baylyi. Single-cell level analysis using live-cell imaging shows that filamentous A. baylyi cells appear at the interface between the species. The analysis of A. baylyi transcriptome and the response of transcriptional reporters suggest that the uptake of genomic DNA results in a highly upregulated SOS response, which often leads to the cell division arrest. Using competition experiments, we show that the parental strain is outcompeted by a strain lacking the DNA uptake machinery because such mutant shows no SOS response-dependent cell division arrest. Our data suggest that the cost of SOS-response may drive selection of decreased DNA uptake in T6SS positive bacteria.
2019-12-20 | GSE136239 | GEO
Project description:The goals of this study are to use Next-generation sequencing (NGS)to detect bacterial mRNA profiles of E. coli K-12 LE392, P. putida KT2440 and Acinetobacter baylyi ADP1 in response to various antidepressant concentrations for 2 h, in triplicate, using Illumina HiSeq 2500.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 reference genome (NC_000913), Pseudomonas putida KT2440 genome (NCBI:txid160488) and Acinetobacter baylyi ADP1 genome (NCBI:txid62977) 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.
2022-08-03 | GSE181900 | GEO
Project description:The goals of this study are to use SWATH-MS to detect bacterial proteomic profiles of wild-type Acinetobacter baylyi ADP1, and its protein response under the exposure of disinfectants, including chloramine and free chlorine. The concentrations of disinfectants were 10 mg/L. The group without dosing disinfectant was the control group. Each concentration was conducted in triplicate. By comparing the proteomic profiles of experimental groups and control group, the effects of disinfectants on translational levels can be revealed.
2021-09-09 | PXD016794 | Pride
Project description:The goals of this study are to use Next-generation sequencing (NGS) to detect bacterial mRNA profiles of wild-type Acinetobacter baylyi ADP1 and Pwh1266 plasmid, and their mRNA response under the exposure of four artificial sweeteners, including saccharin, sucralose, aspartame, and acesulfame potassium. 3 mg/L of each sweetener was used to treat the mixture of bacteria cell and plasmid. The group without dosing any artificial sweeteners was the control group. Each sample was conducted in triplicate. By comparing the mRNA profiles of experimental groups and control group, the effects of these four artificial sweeteners on the 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 Acinetobacter baylyi ADP1 reference genome (NC_005966) 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 culture. 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.
2021-09-20 | GSE141954 | GEO
Project description:We report the effect of the deletion of novel RNA polymerase binding protein AtfA on genome-wide transcription in Acinetobacter baylyi ADP1. Compared the transcription profile of wt vs atfA knockout in Acinetobacter baylyi ADP1 using RNA-seq.
2014-07-28 | E-GEOD-42973 | biostudies-arrayexpress
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
Project description:The goals of this study are to use SWATH-MS to detect bacterial proteomic profiles of wild-type Acinetobacter baylyi ADP1, and its protein response under the exposure of non-antibiotic pharmaceuticals, including ibuprofen, naproxen, gemfibrozil, diclofenac, propanolol, and iopromide. The concentrations were 0.5 mg/L for ibuprofen, naproxen, gemfibrozil, diclofenac, propanolol, and 1.0 mg/L for iopromide. The group without dosing pharmaceutical was the control group. Each concentration was conducted in triplicate. By comparing the proteomic profiles of experimental groups and control group, the effects of non-antibiotic pharmaceuticals on translational levels can be revealed.
2020-05-22 | PXD016798 | Pride
Project description:AAcinetobacter baylyi (evolved 14 days) Genome sequencing and assembly
| PRJNA354672 | ENA