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Metabolic transcription analysis of engineered Escherichia coli strains that overproduce L-phenylalanine

José L Báez-Viveros1, Noemí Flores2, Katy Juárez2, Patricia Castillo-España1, Francisco Bolivar2 and Guillermo Gosset2*

1 Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Av. Universidad 2000, Cuernavaca, Morelos, México

2 Departamento de Ingeniería Celular y Biocatálisis, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad 2001, Cuernavaca, Morelos, México

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Microbial Cell Factories 2007, 6:30 doi:10.1186/1475-2859-6-30

Published: 19 September 2007

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Additional file 1:

Relative transcript levels determined by RT-PCR in JM101, PB12, PB13 and their corresponding L-Phe overproducing strains JM101-ev2, PB12-ev2 and PB13-ev2 strains. Most of the transcriptional regulation data were taken from EcoCyc database [71]. Relative gene transcription values ≥ 2 are in red (up-regulation), values ≤ 0.5 are in blue (down-regulation). No significant values are in black.

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