Journal
GENE
Volume 419, Issue 1-2, Pages 43-47Publisher
ELSEVIER
DOI: 10.1016/j.gene.2008.04.011
Keywords
site-specific recombinase; Flp/FRT; streptomyces; natural products producer
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We report here a system for the functional expression of the Flp recombinase in several actinomycetes: Streptomyces coelicolor, S. lividans, and Saccharotrix espanaensis. We have constructed a synthetic gene encoding the Flp recombinase with a GC content of 60.6% optimized for expression in high-GC bacteria. Using the synthetic flp(a) gene, we have removed an apramycin resistance gene flanked by FRT sites from the chromosome of actinomycetes with an efficiency of 40%. Sequencing the region of chromosome showed that excision of the apramycin cassette by Flp recombinase was specific. (C) 2008 Elsevier B.V. All rights reserved.
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