Fig. 2
pI distributions of proteins in different subcellular compartments. Panel a shows, for comparison, the whole-proteome pI distribution. Panels b-k present the pI distributions at the indicated locations, and panel l shows the distribution of proteins predicted to locate in multiple cellular compartments. The mean pI values of the distributions are indicated in the panels. pIex and pI in panels c and e refer to the mean pI values calculated for datasets of experimental and predicted lysosomal and Golgi proteins