Abstract
The e14 element appears to be integrated into the Escherichia coli K-12 isocitrate dehydrogenase structural gene (icd). In being integrated, it replaced the last 52 codons of the gene with a closely related sequence. The two versions of the icd gene produce proteins of the same length but differ by 12 base substitutions that would cause two conservative amino acid replacements.
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Selected References
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