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. 2010 Jan 19;6:340. doi: 10.1038/msb.2009.94

Figure 2.

Figure 2

Codon usage–expression correlations harmonize across data sets upon removal of LGT candidates. Panels in the top row show the relationship between codon usage and mRNA levels for (A) Bernstein et al (2002) (LB medium); (B) Bernstein et al (2002) (M9 medium); (C) the ASAP database and (D) Covert et al (2004), with LOWESS regressions fitted using a range of smoothing parameters f. Inverse regressions of the same data sets are depicted in the centre row. The bottom row corresponds to the top row with LGT candidates removed (see Materials and methods). Expression values (hybridization intensities) have been transformed with the natural logarithm.