Streptococcus pneumoniae
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA121813 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:This SuperSeries is composed of the following subset Series: GSE31815: ccpA mutant compared to D39 wild-type in Streptococcus pneumoniae in CDM + Glucose at MID-log growth phase GSE31816: ccpA mutant compared to D39 wild-type in Streptococcus pneumoniae in CDM + GLucose at transition-phase of growth (TS) GSE31817: ccpA mutant compared to D39 wild-type in Streptococcus pneumoniae in CDM + Galactose at MID-log growth phase GSE31818: ccpA mutant compared to D39 wild-type in Streptococcus pneumoniae in CDM + galactose at transition-phase of growth (TS) Refer to individual Series
2011-09-30 | E-GEOD-31819 | biostudies-arrayexpress
Project description:Comparison of the Streptococcus pneumoniae D39 spxB- mutant vs D39. For DNA microarray analysis, D39 wild-type and two independently obtained D39spxB- mutants were grown as four, two and two biological replicates, respectively, in Glc-M17 under semi-aerobic conditions and harvested at an OD595 of approximately 0.25 (mid-exponential). The RNA of both D39spxB- strains was compared to D39 and the combined data was analyzed. All other procedures regarding microarray analyses were done as described before. A gene was considered differentially expressed when the fold change was ≥ 2, ≤ 0.5, with a Bayes p ≤ 0.00001 and when at least 7 measurements were available.
2013-08-08 | GSE45971 | GEO
Project description:Three Microarray comparisons have been preformed in this study. 1- Transcriptome comparison of the Streptococcus pneumoniae D39 wild type grown in M17 medium + 0.5 % (w/v) NAGa (NAGaM17) to M17 medium + 0.5 % (w/v) glucose (GM17) (GSM2372597 and GSM2372598). 2- Transcriptome comparison of the Streptococcus pneumoniae D39 ΔagaR to D39 wild type grown in M17 medium + 0.5 % (w/v) glucose (GM17) (GSM2372599 and GSM2372600). 3- Transcriptome comparison of the Streptococcus pneumoniae D39 ΔccpA to D39 wild type grown in M17 medium + 0.5 % (w/v) NAGa (NAGaM17) (GSM2290636 and GSM2290637).
2016-11-02 | GSE86008 | GEO
Project description:Transcriptome comparison of the Streptococcus pneumoniae D39 ΔnaiR to D39 wild type grown in CDM
2017-02-24 | GSE94511 | GEO
Project description:The catalase-negative, facultative anaerobe Streptococcus pneumoniae D39 is naturally resistant to hydrogen peroxide (H2O2) produced endogenously by pyruvate oxidase (SpxB). Here, we investigate the adaptive response to endogenously produced H2O2. We show that lactate oxidase, which converts lactate to pyruvate, positively impacts pyruvate flux through SpxB and that ∆lctO mutants produce significantly lower H2O2. In addition, both the SpxB and pyruvate dehydrogenase complex (PDHC) pathways contribute to acetyl-CoA production during aerobic growth, and the pyruvate format lyase (PFL) pathway is the major acetyl-CoA pathway during anaerobic growth. Microarray analysis of the D39 strain cultured under aerobic vs. strict anaerobic conditions show up-regulation of spxB, a rhodanese-like protein (spd0091), tpxD, sodA, piuB, piuD and an Fe-S protein biogenesis operon under H2O2-producing conditions. Proteome profiling of H2O2-induced sulfenylation reveals that sulfenylation levels correlate with cellular H2O2 production, with endogenous sulfenylation of ≈50 proteins. Deletion of tpxD increases cellular sulfenylation 5-fold and has an inhibitory effect on ATP generation. Two major targets of protein sulfenylation are glyceraldehyde-3-phosphate dehydrogenase (GapA) and SpxB itself, but also include pyruvate kinase, LctO, AdhE and acetate kinase (AckA). Sulfenylation of GapA is inhibitory, while the effect on SpxB activity is negligible, consistent with this cell-abundant protein functioning as a “sink” for endogenous H2O2. Strikingly, four enzymes of capsular polysaccharide biosynthesis are sulfenylated, as are enzymes associated nucleotide biosynthesis via ribulose-5-phosphate. We propose that LctO/SpxB-generated H2O2 functions as a signaling molecule to down-regulate capsule production and drive altered flux through sugar utilization pathways.
2016-12-08 | GSE19791 | GEO
Project description:Transcriptome comparison of the Streptococcus pneumoniae D39 wild-type grown in CDM with 0mM to 0.05 mM copper.
2011-07-10 | GSE30413 | GEO
Project description:Transcriptome comparison of the Streptococcus pneumoniae D39 copY-stop mutant to D39 wild-type grown in CDM without added copper.
2011-07-10 | GSE30414 | GEO
Project description:Here we analyze the transcriptomic profile of Streptococcus pneumoniae D39 Dspd_1448::KanrpsL (IU10991) vs Streptcococcus penumoiae D39 wt (IU1781) under anaerobic growth condition in BHI growth media
2022-06-29 | GSE196501 | GEO
Project description:Transcriptome comparison of the Streptococcus pneumoniae D39 wild-type grown in CDM Plus 0mM Zn2+ to grown in CDM plus 0.2 mM Zn2+.
2011-05-13 | GSE29235 | GEO
Project description:Transcriptome comparison of the Streptococcus pneumoniae D39 wild-type grown in M17 medium to grown in M17 medium + 10mM ascorbic acid (AM17).
2015-01-21 | GSE64105 | GEO