The DnaX ribosomal frameshifting element is a RNA element found in the mRNA of the dnaX gene in E. coli.

The dnaX gene has two encoded products, tau and gamma, which are produced in a 1:1 ratio.

The gamma protein is synthesised due to programmed frameshifting and is shorter than tau.

The two products of the dnaX gene are DNA polymerase III subunits.

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