Readthrough levels and factor of increase for 66 sequences containing a stop codon.

<p>Readthrough efficiencies of 66 sequences (65 nonsense mutations and 1 natural stop codon) were measured in NIH3T3 cells with and without gentamicin (800 µg/ml) treatment for 24 H. Each value shown is the mean of at least three independent experiments. For each sequence, the factor of increase (I) is the ratio of the gentamicin-induced readthrough level (G) to the basal readthrough level (B). Sequences are ranked in descending order of gentamicin-induced readthrough level.