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TranscriptomicsE. coli BW25113 K-12 hfq vs. wild-type persister
Persisters are cells which evade stresses like antibiotics and which are characterized by reduced metabolism and a lack of genetic alterations required to achieve this state. We showed previously that MqsR and MqsA of Escherichia coli are a toxin-antitoxin pair that influence cell physiology (e.g.,...
ORGANISM(S): Escherichia coli 
2009-11-07 | E-GEOD-18852 | biostudies-arrayexpress
UnknownYliH (BssR) and YceP (BssS) regulate Escherichia coli K-12 biofilm formation by influencing cell signaling.
Not available
S-EPMC1448992 | biostudies-literature
TranscriptomicsE. coli BW25113 ompA mutant vs wild type biofilm and E. coli BW25113 ompA/pCA24N_ompA vs ompA/pCA24N suspension cells
This Series involves two studies: 1) The gene expression of E. coli K-12 BW25113 ompA mutant strain vs. wild type strain glasswool biofilm cells and E. coli K-12 BW25113 ompA mutant vs. wild type polystyrene biofilm cells. 2) The gene expression of E. coli BW25113 ompA/pCA24N_ompA vs. ompA/pCA24N su...
ORGANISM(S): Escherichia coli 
2010-11-03 | E-GEOD-14064 | biostudies-arrayexpress
TranscriptomicsE. coli K-12 mutant yjgI biofilm vs. wild type biofilm
The gene expression of glasswool biofilm cells in E. coli yjgI mutant vs. E. coli wild type strain in LB. Strains: E. coli K12 BW25113 wild type, yjgI mutant Medium: LB Biofilm grown on glass wool Time: 15 h Cell type: biofilm
ORGANISM(S): Escherichia coli 
2011-05-29 | E-GEOD-22057 | biostudies-arrayexpress
TranscriptomicsExpression profile for BW25113 M-NM-^TmqsRA with deoxycholate stress
MqsR/MqsA is a well-characterized toxin/antitoxin system with several regulatory roles. Deletion of mqsRA reduced growth with deoxycholate stress. Here we performed a microarray to determine the expression profile with and without mqsRA under deoxycholate stress to determine transcriptional regulat...
ORGANISM(S): Escherichia coli BW25113 
2015-01-09 | E-GEOD-59441 | biostudies-arrayexpress
TranscriptomicsPseudomonas aeruginosa PA14 wild-type vs the tpbA (PA14_13660) mutant
Microarray analysis for the biofilm cells of Pseudomonas aeruginosa PA14 wild-type vs the tpbA (PA14_13660) mutant in LB medium at 4 and 7 h at 37C Microarray analysis for the biofilm cells of Pseudomonas aeruginosa PA14 wild-type vs the tpbA (PA14_13660) mutant in LB medium at 4 and 7 h at 37C.
ORGANISM(S): Pseudomonas aeruginosa 
2009-05-23 | E-GEOD-13871 | biostudies-arrayexpress
TranscriptomicsP. aeruginosa PA14 WT in LB medium vs in LB with 10 mM adenosine medium
To investigate the impact of adenosine on gene expression of wild-type PA14. To investigate the impact of adenosine on gene expression of wild-type PA14, cells were harvested after incubating for 7 h in LB medium and LB with 10 mM adenosine medium, and RNA was extracted with the RNeasy Mini Kit (Qia...
ORGANISM(S): Pseudomonas aeruginosa 
2012-05-22 | E-GEOD-29665 | biostudies-arrayexpress
TranscriptomicsMicroarray for suspension cells of PA14 WT with and without NE (50 uM and 500 uM) for 7 h
It has been proposed that the gastro-intestinal tract environment containing high levels of neuroendocrine hormones is important for gut-derived P. aeruginosa infections. In this study, we report that the hormone norepinephrine increases P. aeruginosa PA14 growth, virulence factor production, invasi...
ORGANISM(S): Pseudomonas aeruginosa UCBPP-PA14 
2009-08-27 | E-GEOD-13326 | biostudies-arrayexpress
TranscriptomicsE.coli MG1655M-NM-^T6/pCA24N-dinJ treated with erythromycin vs. MG1655M-NM-^T6/pCA24N
Antitoxins are becoming recognized as proteins that regulate more than their own synthesis; for example, we found previously that antitoxin MqsA represses the gene encoding the stationary phase sigma factor RpoS. Here, we investigated the physiological role of antitoxin DinJ of the DinJ/YafQ toxin/a...
ORGANISM(S): Escherichia coli 
2012-07-08 | E-GEOD-30692 | biostudies-arrayexpress
TranscriptomicsExpression profile for PA14 lasR rhlR double mutant with H2O2 stress
Quorum sensing controls the expression of multiple virulence factors. PA14 genes lasR and rhlR are necessary for quorum sensing via homoserine lactones. A PA14 lasR rhlR deficient mutant exhibits a reduced oxidative stress response. Here we conducted a microarray to determine oxidative stress resp...
ORGANISM(S): Pseudomonas aeruginosa 
2015-01-09 | E-GEOD-54245 | biostudies-arrayexpress
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