Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Gene expression analysis of phage Alderaan infected mycelium from S. venezuelae

ABSTRACT: To gain insights into the processes underlying adaptation to phage infection, we performed RNA-seq analysis of infected mycelium from the plaque interface of S. venezuelae wild type harvested 24 h and 72 h after infection with Alderaan.

ORGANISM(S): Streptomyces venezuelae

PROVIDER: GSE213718 | GEO | 2022/09/22

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Influence of the aminoglycoside antibiotic apramycin on host and phage DNA transcription during infection of S. venezuelae ATCC 10712 with phage Alderaan

Project description:Bacterial populations face the constant threat of viral predation exerted by bacteriophages (or phages). In response, bacteria have evolved a wide range of defense mechanisms against phage challenges. Here, we show that aminoglycosides, a well-known class of antibiotics produced by Streptomyces, are potent inhibitors of phage infection. We observed a broad phage inhibition by aminoglycosides. We demonstrate that aminoglycosides do not prevent the injection of phage DNA into bacterial cells but instead block an early step of the viral life cycle. In this context, we used RNA sequencing of S. venezuelae cells infected with phage Alderaan to comparatively investigate the influence of apramycin on phage DNA tanscription at two different time points after inital infection.

2021-04-30 | GSE171784 | GEO

Gene expression analysis of phage Alderaan infected mycelium from S. venezuelae

Project description:Gene expression analysis of phage Alderaan infected mycelium from S. venezuelae

| PRJNA882106 | ENA

The transcriptional program of Staphylococcus aureus phage K is affected by a host rpoC mutation that confers phage K resistance

Project description:To better understand host/phage interactions and the genetic bases of phage resistance in a model system relevant to potential phage therapy, we isolated several spontaneous mutants of the USA300 S. aureus clinical isolate NRS384 that were resistant to phage K. Six of these had a single missense mutation in the host rpoC gene, which encodes the RNA polymerase beta prime subunit. To examine the hypothesis that the mutations in the host RNA polymerase affect the transcription of phage genes, we performed RNA-seq analysis on total RNA samples collected from NRS384 wild-type (WT) and rpoC G17D mutant cultures infected with phage K, at different time points after infection. Infection of the WT host led to a steady increase of phage transcription relative to the host. Our analysis allowed us to define different early, middle, and late phage genes based on their temporal expression patterns and group them into transcriptional units. Predicted promoter sequences defined by conserved -35, -10, and in some cases extended -10 elements were found upstream of early and middle genes. However, sequences upstream of late genes did not contain clear, complete, canonical promoter sequences, suggesting that factors in addition to host RNA polymerase are required for their regulated expression. Infection of the rpoC G17D mutant host led to a transcriptional pattern that was similar to the WT at early time points. However, beginning at 20 minutes after infection, transcription of late genes (such as phage structural genes and host lysis genes) was severely reduced. Our data indicate that the rpoCG17D mutation prevents the expression of phage late genes, resulting in a failed infection cycle for phage K. In addition to illuminating the global transcriptional landscape of phage K throughout the infection cycle, these studies can inform our investigations into the bases of phage K’s control of its transcriptional program as well as mechanisms of phage resistance.

2024-10-09 | GSE253516 | GEO

Identifying Lsr2 binding sites in Streptomyces venezuelae

Project description:The goal of this work was to determine where Lsr2 binds within the S. venezuelae chromosome, and to differentiate between direct versus indirect effects by comparing our ChIP-seq results with RNA-seq results

2018-06-09 | GSE115538 | GEO

RNA-seq of Cellulophaga baltica phage 18:3 infection

Project description:Genome-wide transcriptomics (RNA-seq) data was obtained temporally at 0, 15, 30, 45, 60 and 120 minutes of the infection with phage 18:3 on Cellulophaga baltica strain #18 to analyze, in biological triplicates, the phage and host transcriptional response during their interaction compared to the uninfected control.

2017-03-20 | E-MTAB-5448 | biostudies-arrayexpress

Influence of the aminoglycoside antibiotic apramycin on host and phage DNA transcription during infection of S. venezuelae ATCC 10712 with phage Alderaan

Project description:Influence of the aminoglycoside antibiotic apramycin on host and phage DNA transcription during infection of S. venezuelae ATCC 10712 with phage Alderaan

| PRJNA720911 | ENA

Type I CRISPR-Cas provides robust immunity but incomplete attenuation of phage-induced cellular stress

Project description:During infection, phages manipulate bacteria to redirect metabolism towards viral proliferation. To counteract phages, some bacteria employ CRISPR-Cas systems that provide adaptive immunity. While CRISPR-Cas mechanisms have been studied extensively, their effects on both the phage and the host during phage infection remains poorly understood. Here, we analysed the infection of Serratia by a siphovirus (JS26) and the transcriptomic response with, or without type I-E or I-F CRISPR-Cas immunity. In non-immune Serratia, phage infection altered bacterial metabolism by upregulating anaerobic respiration and amino acid biosynthesis genes, while flagella production was suppressed. Furthermore, phage proliferation required a late-expressed viral Cas4, which did not influence CRISPR adaptation. While type I-E and I-F immunity provided robust defence against phage infection, phage development still impacted the bacterial host. Moreover, DNA repair and SOS response pathways were upregulated during type I immunity. We also discovered that the type I-F system is controlled by a positive autoregulatory feedback loop that is activated upon phage targeting during type I-F immunity, leading to a controlled anti-phage response. Overall, our results provide new insight into phage-host dynamics and the impact of CRISPR immunity within the infected cell.

2021-10-28 | GSE186673 | GEO

Bacteria conjugate ubiquitin-like proteins to interfere with phage assembly

Project description:Multiple immune pathways in humans conjugate ubiquitin-like proteins to virus and host molecules as a means of antiviral defense. Here we studied an anti-phage defense system in bacteria, comprising a ubiquitin-like protein, ubiquitin-conjugating enzymes E1 and E2, and a deubiquitinase. We show that during phage infection, this system specifically conjugates the ubiquitin-like protein to the phage central tail fiber, a protein at the tip of the tail that is essential for tail assembly as well as for recognition of the target host receptor. Following infection, cells encoding this defense system release a mixture of partially assembled, tailless phage particles, and fully assembled phages in which the central tail fiber is obstructed by the covalently attached ubiquitin-like protein. These phages exhibit severely impaired infectivity, explaining how the defense system protects the bacterial population from the spread of phage infection. Our findings demonstrate that conjugation of ubiquitin-like proteins is an antiviral strategy conserved across the tree of life.

2024-05-08 | GSE262579 | GEO

Whole transcriptome sequencing of phage φR1-37 and its host Yersinia enterocolitica

Project description:RNA-sequencing was preformed from RNA isolated from bacteria infected with the bacteriophage. In order to reveal the phage-host interactions between φR1-37 and Yersinia enterocolitica throughout the phage infection cycle, both the transcriptomes were scrutinized during all the stages of infection.

2016-01-22 | GSE77068 | GEO

Differential transcription profiling of the phage LUZ19 infection process in different growth media

Project description:RNA sequencing (RNA-seq) of phage infected bacterial cultures offers a snapshot of transcriptional events occurring during the infection process, providing insights into the phage transcriptional organization as well as the bacterial response. To better mimic real environmental contexts, we performed RNA-seq of P. aeruginosa PAO1 cultures infected with phage LUZ19 in a mammalian cell culture medium (MCCM) to better simulate a phage therapy event, and the data were compared to LB medium. Regardless of the media, phage LUZ19 induces significant transcriptional changes in the bacterial host over time, particularly during early infection (t= 5 min) and gradually shuts down bacterial transcription. In a common response in both media, 56 P. aeruginosa PAO1 genes are differentially transcribed and clustered into several functional categories such as metabolism, translation and transcription. Our data allowed us to tease apart a medium-specific response during infection from the identified infection-associated responses. This reinforces the concept that phages overtake bacterial transcriptome in a strict manner to gain control of the bacterial machinery and reallocate resources for infection, in this case overcoming the nutritional limitations of the mammalian cell culture medium. From a phage therapy perspective, this study contributes towards a better understanding of phage-host interaction in human physiological conditions and demonstrates the versatility of phage LUZ19 to adapt to different environments.

2020-11-28 | GSE162278 | 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