Figure 5.

Differential abundance of proteins from cultures adapted to 48 mm and 6 μm sulfate in the growth medium. The image shows a representative polyacrylamide gel (10%). To allow quantitative comparisons, 5 and 10 μg of total proteins from each extract were loaded. Internal peptide sequences derived from the isolated bands indicated by their molecular mass are shown in brackets. Alternative amino acids for the same position are included.