Unknown,Transcriptomics,Genomics,Proteomics

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Gene expression level during L-threonine production


ABSTRACT: The comparative transcriptome profiling of L-threonine producing strain (TH07 strain harboring pBRThrABC) and control W3110 (lacI-deleted) strain harboring pKK223-3 has been analyzed using oligo nucleotide microarray. Keywords: comparative transcriptome analysis (between L-threonine producing strain and the control strain) Samples for transcriptome profiling were taken at the OD600 of 5.13 (TH07 harboring pBRThrABC) and 5.21 (control strain), replicate = 2

ORGANISM(S): Escherichia coli

SUBMITTER: Sang Yup Lee 

PROVIDER: E-GEOD-9434 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Systems metabolic engineering of Escherichia coli for L-threonine production.

Lee Kwang Ho KH   Park Jin Hwan JH   Kim Tae Yong TY   Kim Hyun Uk HU   Lee Sang Yup SY  

Molecular systems biology 20071204


Amino-acid producers have traditionally been developed by repeated random mutagenesis owing to the difficulty in rationally engineering the complex and highly regulated metabolic network. Here, we report the development of the genetically defined L-threonine overproducing Escherichia coli strain by systems metabolic engineering. Feedback inhibitions of aspartokinase I and III (encoded by thrA and lysC, respectively) and transcriptional attenuation regulations (located in thrL) were removed. Path  ...[more]

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