J. Bacteriol., 05 1996, 2718-2720, Vol 178, No. 9
Copyright © 1996, American Society for Microbiology
A Deana, R Ehrlich and C Reiss
Laboratoire Structure et Dynamique du Genome, Centre de Genetique Moleculaire, Centre National de la Recherch Scientifique, Gif sur Yvette, France.
A number of silent codon changes were made in two Escherichia coli genes. For the ompA gene, the replacement of seven consecutive frequently used codons with synonymous infrequently used codons reduced the ompA mRNA level and its half-life. For the bla gene, the exchange of 24 codons for the most frequently used synonymous codons extended the bla mRNA half-life. A modification of ribosome traffic could account for these observations.
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