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Transcriptome analysis of Streptococcus mutans ΔSMU.1147 strain

ABSTRACT: Transcriptome analysis of Streptococcus mutans ΔSMU.1147 strain

PROVIDER: PRJNA1022037 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR26213626_1.fastq.gz	Fastqsanger.gz
	SRR26213626_2.fastq.gz	Fastqsanger.gz
	SRR26213627_1.fastq.gz	Fastqsanger.gz
	SRR26213627_2.fastq.gz	Fastqsanger.gz
	SRR26213628_1.fastq.gz	Fastqsanger.gz

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Transcriptome analysis of Streptococcus mutans ΔSMU.1147 strain

Project description:RNA-seq was performed to examine the overall gene expression in a S. mutans ΔSMU.1147 strain and to identify potential genes that can mainly contribute to the changes of gene expression in S. mutans. Using RNA-seq technique, the differentially expressed genes that are implicated in phenotypic changes of the ΔSMU.1147 strain were studied.

2023-10-03 | GSE244268 | GEO

Interactions with Commensal or Non-commensal Streptococci Alter Streptococcus mutans Transcriptome and Behaviors

Project description:RNA-Seq was used to compare the transcriptome of Streptococcus mutans UA159 during growth alone in monoculture, in coculture with Streptococcus gordonii DL1, Streptococcus sanguinis SK36 or Streptococcus oralis 34, and in a quadculture containing all four species. Individual cultures of commensal species Streptococcus gordonii DL1, Streptococcus sanguinis SK36 and Streptococcus oralis 34 were sequenced as well. This revealed a common transcriptome pattern in S. mutans when grown in mixed-species culture, indepenedent of the species identity that S. mutans was cultured with. Additionally, transcriptome changes in the commensal species could also be determined when undergoing competition from S. mutans. RNA-Seq was used to compare the transcriptome of Streptococcus mutans UA159 during growth alone in monoculture or in coculture with Streptococcus sobrinus NIDR 6715, Lactobacillus casei ATCC 4646 or Corynebacterium matruchotii ATCC 14266. These data were compared to previous coculture and quadculture RNA-Seq data with commensal streptococci (GSE209925). These data confirmed a common transcriptome pattern in S. mutans when grown in mixed-species culture with commensal streptococci that is not present with non-commensal streptococci, indepenedent of the species identity that S. mutans was cultured with.

2022-08-03 | GSE209925 | GEO

Transcriptome analysis of Streptococcus mutans quorum sensing-induced cells

Project description:In the human pathogen Streptococcus mutans, the canonical peptide-based quorum sensing system is an inducible DNA repair system that is pivotal for bacterial survival. Previous work showed that the CSP signaling peptide is a stress-signaling alarmone that controls different stress-induced phenotypes. In this study, we exposed S. mutans to the CSP pheromone to mimic DNA damage conditions. Transcriptome analysis was then performed to evaluate the differential gene expression between the normal stationary phase cells and the CSP-induced stationary phase cells. The data obtained contribute to the understanding of the CSP-induced phenotypes in S. mutans.

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The impacts of the Spx regulator and H2O2 stress on the transcriptome of Streptococcus mutans

Project description:As a resident of the oral cavity, Streptococcus mutans must withstand a variety of stresses, including oxidative stress. Previously, we reported the identification of two Spx homologues (SpxA1 and SpxA2) in Streptococcus mutans that appear critical in the ability of the microbe to tolerate oxidative stresses; SpxA1 was shown to play a primary role in activation of detoxification strategies whereas SpxA2 served as a secondary activator. Here, we used RNA deep sequencing (RNA-Seq) to examine the transcriptional changes associated with H2O2 stress in the parent S. mutans strain UA159 and to compare the peroxide-stress transcriptome of UA159 with its Δspx derivatives. The transcriptome data confirmed the relationship between SpxA1 and genes typically associated with oxidative stress responses, but also identified new genes and metabolic pathways that are activated during peroxide stress, also in an SpxA1-dependent manner.

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Transcriptome analysis of Streptococcus mutans biofilms in response to starch and sucrose.

Project description:Transcriptional profiling to investigate the response of Streptococcus mutans biofilms to starch and sucrose at distinct stages of biofilm development.

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Transcriptome analysis of Streptococcus mutans fluoride-resistant (FR) strain

Project description:RNA-seq was performed to examine the overall gene expression in a S. mutans FR strain and to identify potential genes that can mainly contribute to the generation of a fluoride resistance in S. mutans. Using RNA-seq technique, the differentially expressed genes that are implicated in phenotypic changes of the FR strain were studied.

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Project description:Transcriptional profiling of early logarithmic phase culture (O.D=0.2-0.3) of Streptococcus mutans UA159 comparing control of untreated Streptococcus mutans UA159 bacteria with Streptococcus mutans UA159 bacteria spplemented with 20µM synthetic DPD (pre-AI-2) which regulates gene expression via AI-2 quorum sensing system.Three compairisons were performed at pHs of 7,6 and 5.

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2010-05-15 | E-GEOD-21831 | biostudies-arrayexpress

ΔfruB effects on the transcriptome of Streptococcus mutans probed by RNA-seq

Project description:Streptococcus mutans, the primary etiologic agent of human dental caries, and a variety of oral Streptococcus and Actinomyces spp. synthesize high molecular mass homopolymers of fructose (fructans) with predominantly β2,1- (inulins) or β2,6-linkages (levans). The ability of S. mutans to degrade fructans contributes to the severity of dental caries. The extracellular product of fruA of S. mutans is an exo-β-D-fructofuranosidase that releases fructose from levan and inulin. Located 70 bp downstream of fruA, fruB encodes a member of the glycoside hydrolase family 32, but the function of FruB has not been established.In this study, the transcriptomic analysis of UA159 and a fruB mutant grown on 0.2% levan revealed differential expression of genes encoding ABC transporters, transcriptional regulators and genes involved in growth and stress tolerance. The results provide new insights into the mechanisms of action by which FruB utilizes homo-polymers of fructose, specifically levan. The findings significantly enhance our understanding of the genetics and physiology of this cariogenic pathogen S. mutans.

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