GEO DataSets

(Submitter supplied) Gene expression profiles of Escherichia coli K-12 W3110 were compared as a function of steady-state external pH. Cultures were grown with aeration to an optical density at 600 nm of 0.3 in potassium-modified Luria-Bertani medium buffered at pH 5.0, 7.0, and 8.7. For each of the three pH conditions, cDNA from RNA of five independent cultures was hybridized to Affymetrix E. coli arrays. Analysis of variance with a significance level of 0.001 resulted in 98% power to detect genes showing a twofold difference in expression. more...

Organism:

Escherichia coli K-12

Type:

Expression profiling by array

Dataset:

GDS1827

Platform:

GPL199

15 Samples

Download data: CEL, EXP

Analysis of enteric bacteria K-12 strain W3110 cells grown aerobically and exposed to low, neutral, or high pH. Enteric bacteria encounter a wide range of external pHs in the human digestive tract, their natural habitat. Results provide insight into the acid and base response.

Organism:

Escherichia coli K-12

Type:

Expression profiling by array, count, 3 stress sets

Platform:

GPL199

Series:

GSE4511

15 Samples

Download data: CEL, EXP

(Submitter supplied) Affymetrix submissions are typically submitted to GEO using the GEOarchive method described at http://www.ncbi.nlm.nih.gov/projects/geo/info/geo_affy.html Has 7312 entries and was indexed 20-May-2002. The GeneChip E. coli Antisense Genome Array can be used for examining expression of all known E. coli genes and discovering novel, uncharacterized intergenic transcripts. The array contains probe sets to detect the antisense strand of more than 4,200 known open reading frames. more...

Organism:

Escherichia coli K-12

6 DataSets

54 Series

1 Related Platform

947 Samples

Download data