Journal
JOURNAL OF BACTERIOLOGY
Volume 186, Issue 10, Pages 3254-3258Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/JB.186.10.3254-3258.2004
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To gain insight into the cell envelope of Escherichia coli grown under aerobic and anaerobic conditions, lipoproteins were examined by using functional genomics. The mRNA expression levels of each of these genes under three growth conditions-aerobic, anaerobic, and anaerobic with nitrate-were examined by using both Affymetrix GeneChip E. coli antisense genome arrays and real-time PCR (RT-PCR). Many genes showed significant changes in expression level. The RT-PCR results were in very good agreement with the microarray data. The results of this study represent the first insights into the possible roles of unknown lipoprotein genes and broaden our understanding of the composition of the cell envelope under different environmental conditions. Additionally, these data serve as a test set for the refinement of high-throughput bioinformatic and global gene expression methods.
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