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Streptococcus mutans

ABSTRACT: Streptococcus mutans

PROVIDER: PRJNA769153 | ENA |

REPOSITORIES: ENA

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Dataset's files

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			Action	DRS
		Other
	SRR16475200_1.fastq.gz	Fastqsanger.gz
	SRR16475200_2.fastq.gz	Fastqsanger.gz
	SRR16475201_1.fastq.gz	Fastqsanger.gz
	SRR16475201_2.fastq.gz	Fastqsanger.gz

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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

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

glucose amendment of Streptococcus mutans biofilm

Project description:In this experiment we collected small molecule data that represent excreted molecules by Streptococcus mutans growing as a biofilm. The S. mutans biofilms were established and incubated in anaerobic conditions. Samples were collected before and after a drastic pH drop due to glucose amendments. Control samples are included in this folder that represent molecules that were extracted from sterilized growth media only. These peaks should be subtracted from the biofilm samples prior to analyses.

2014-04-10 | MSV000078578 | MassIVE

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.

2012-08-22 | GSE40172 | 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.

2010-05-15 | GSE21831 | 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

Identification of the phosphotransacetylase (pta) and acetate kinase (ackA) regulons in Streptococcus mutans UA159

Project description:Transcriptional comparisons between wild-type Streptococcus mutans UA159 and two mutant strains (∆ackA and ∆ackA pta).

2013-05-11 | GSE46835 | GEO

AMINO SUGARS RESHAPE INTERACTIONS BETWEEN STREPTOCOCCUS MUTANS AND STREPTOCOCCUS GORDONII

Project description:Amino sugars, particularly glucosamine (GlcN) and N-acetylglucosamine (GlcNAc) are abundant carbon and nitrogen sources that are continually supplied in host secretions and the diet to biofilms colonizing the human mouth. Evidence is emerging that these amino sugars may provide an ecological advantage to beneficial commensals over oral pathobionts. Here we performed transcriptome analysis on Streptococcus mutans and Streptococcus gordonii growing in single-species or dual-species cultures with glucose, GlcN or GlcNAc as the primary carbohydrate source. Compared to glucose, GlcN caused drastic transcriptomic shifts in each bacterium when they were cultured alone. Likewise, co-cultivation in the presence of GlcN yielded transcriptomic profiles that were dramatically different than the single-species results from GlcN-grown cells. In contrast, GlcNAc elicited only minor changes in the transcriptome of either organism, in both single- and dual-species cultures. Interestingly, genes involved in pyruvate metabolism were among the most significantly affected by GlcN in both species, and these changes were consistent with measurements of pyruvate in culture supernates. Differing a previous report, growth of S. mutans alone with GlcN inhibited expression of multiple operons required for mutacin production. Co-cultivation with S. gordonii consistently increased the expression by S. mutans of two manganese transporter operons (slo and mntH) and decreased expression of mutacin genes. Conversely, S. gordonii appeared to be less affected by the presence of S. mutans, but did show increases in genes for biosynthetic processes in the co-cultures. In conclusion, amino sugars profoundly altered the interactions between the pathogen and the commensal, likely by reprogramming their central metabolism.

2020-06-09 | GSE152021 | GEO

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.

2022-04-15 | GSE200727 | GEO

Structural and molecular basis of the role of starch and sucrose in Streptococcus mutans biofilms development

Project description:Transcriptional profiling to investigate the response of Streptococcus mutans biofilms to starch and sucrose.

2010-05-18 | GSE21872 | GEO