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Response of ethanologenic E coli strains LY180 and EMFR9 to furfural

ABSTRACT: The data explore the transcriptional response of strain LY180 and the furfural-resistant derivative EMFR9 to 0.5 g/L furfural LY180 and EMFR9 and differences in their expression profiles are described in Miller, E. N., L. R. Jarboe, L. P. Yomano, S. W. York, K. T. Shanmugam, and L. O. Ingram. 2009. Silencing of NADPH-dependent oxidoreductase genes (yqhD and dkgA) in furfural-resistant ethanologenic Escherichia coli. Appl Environ Microbiol 75:4315-23. The response of LY180 to furfural is described in Miller, E. N., L. R. Jarboe, P. C. Turner, P. Pharkya, L. P. Yomano, S. W. York, D. Nunn, K. T. Shanmugam, and L. O. Ingram. 2009. Furfural Inhibits Growth by Limiting Sulfur Assimilation in Ethanologenic Escherichia coli strain LY180. Appl Environ Microbiol., 2009. Total RNA was prepared from cultures of LY180 and EMFR9 immediately before and 15 min after addition of furfural to 0.5 g/L. The Nimblegen TI83333 chip measures expression of 4,237 genes, with 5 replicates, and 18 probes average per gene. Data from replicate 1 (OID 8641) and replicate 2 (OID 14117) was analyzed independently.

ORGANISM(S): Escherichia coli

SUBMITTER: Peter Turner 

PROVIDER: E-GEOD-17786 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Silencing of NADPH-dependent oxidoreductase genes (yqhD and dkgA) in furfural-resistant ethanologenic Escherichia coli.

Miller E N EN   Jarboe L R LR   Yomano L P LP   York S W SW   Shanmugam K T KT   Ingram L O LO  

Applied and environmental microbiology 20090508 13

Low concentrations of furfural are formed as a side product during the dilute acid hydrolysis of hemicellulose. Growth is inhibited by exposure to furfural but resumes after the complete reduction of furfural to the less toxic furfuryl alcohol. Growth-based selection was used to isolate a furfural-resistant mutant of ethanologenic Escherichia coli LY180, designated strain EMFR9. Based on mRNA expression levels in the parent and mutant in response to furfural challenge, genes encoding 12 oxidored  ...[more]

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