Abstract
Genetic engineering enables the forced expression of desired products in bacteria, which can then be used for a variety of applications, includingfunctional analysis and pharmaceuticals. Here, we describe a method for tuning translation in bacteria, including Escherichia coli and Rhodobacter capsulatus, based on a phenomenon known as TED (translation enhancement by a Dictyostelium gene sequence). This method promotes translation of mRNA encoded by downstream genes by inserting a short nucleotide sequence into the 5' untranslated region between the promoter and the Shine-Dalgarno (SD) sequence. Various expression levels can be observed depending on the inserted sequence and its length, even with an identical promoter.
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