Figure 2.

Codon bias value distributions in the yeast genome and on a narrow-range isoelectric focusing gel. (A) The entire yeast genome. (B) Genes predicted to run within selected area based on pI (5.25–5.45) and molecular mass (38–54 kDa). (C) Unique genes detected in selected area. (D) Genes both predicted and found. Codon bias value is a predictor of protein abundance with lower abundance proteins generally arising from genes with codon bias values <0.2. No low abundance proteins were detected with codon bias values <0.1 even though more than one-half of the proteins in yeast fall into this category.