Genome Research 14: 2279-2286 (2004)
Codon usage bias from tRNA's point of view: Redundancy, specialization, and efficient decoding for translation optimization
Eduardo P.C. Rocha
In the first paragraph of the first column on page 2281 and in Figure 1, there is a typo in the definition of ENCdif. The formula should read:
Thus, positive values of ENCdif indicate codon usage bias in ribosomal proteins as mentioned throughout the text.
The authors apologize for any confusion this may have caused.