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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

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.

2024-04-28 | GSE264670 | GEO

Transcriptome analysis of Streptococcus mutans biofilms in response to cranberry proanthocyanidins

Project description:The influence of cranberry proanthocyanidins on the transcriptomic responses of Streptococcus mutans during biofilm formation was investigated.

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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 biofilm cells deficient in the DpnII restriction-modification system

Project description:Human pathogens use cell-cell communication systems, quorum sensing, to regulate virulence factors. Our recent work aiming at deciphering the quorum sensing regulon of Streptococcus mutans, a caries pathogen, revealed a locus encoding an atypical type II restriction-modification (R-M) system, DpnII, comprising two adenine methyltransferases. A recent survey of bacterial genomes demonstrated the widespread occurrence of methylated DNA, and the importance of DNA methylation was highlighted by the diverse processes in which they function. The present study aimed at deciphering the role of DNA methylation during S. mutans biofilm formation. A mutant strain, deficient in the DpnII R-M locus composed of the SMU.504 and SMU.505 genes encoding the two adenine methyltransferases and the SMU.506 gene encoding the DpnII restriction enzyme, was constructed in S. mutans wild-type (WT) strain. Transcriptome analysis was then performed to evaluate the differential biofilm gene expression between the WT cells and the DpnII R-M deficient cells.

2025-09-10 | GSE265916 | GEO

Transcriptome analysis of Streptococcus mutans planktonic cells deficient in the DpnII restriction-modification system

Project description:Human pathogens use cell-cell communication systems, quorum sensing, to regulate virulence factors. Our recent work aiming at deciphering the quorum sensing regulon of Streptococcus mutans, a caries pathogen, revealed a locus encoding an atypical type II restriction-modification (R-M) system, DpnII, comprising two adenine methyltransferases. A recent survey of bacterial genomes demonstrated the widespread occurrence of methylated DNA, and the importance of DNA methylation was highlighted by the diverse processes in which they function. The present study aimed at deciphering the role of DNA methylation during S. mutans planktonic growth. A mutant strain, deficient in the DpnII R-M locus composed of the SMU.504 and SMU.505 genes encoding the two adenine methyltransferases and the SMU.506 gene encoding the DpnII restriction enzyme, was constructed in S. mutans wild-type (WT) strain. Transcriptome analysis was then performed to evaluate the differential planktonic gene expression between the WT cells and the DpnII R-M deficient cells.

2025-03-19 | GSE265802 | GEO

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.

2020-04-29 | GSE149509 | GEO

Streptococcus mutans UA159 control vs. Streptococcus mutans UA159 supplemented with 20 uM 4,5-dihydroxy-2,3-pentadione (DPD) at 3 different pH values

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.

2010-07-29 | GSE23159 | GEO

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.

2017-05-08 | GSE98526 | GEO

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