Figure 4.

Cumulative distribution of MFIs and protein localization. Empirical cumulative distribution functions of MFIs for mRNAs encoding proteins localized in three kinds of subcellular compartments. The left (green) and right (red) curves correspond to reference populations of 388 cytosolic and 245 plasma membrane/endoplasmic reticulum localized proteins, respectively (corresponding mRNAs are known to be translated on free cytosolic and membrane-bound polysomes). The 358 mitochondrial proteins are in the curve in the middle (blue), their mRNA localization being between that of the two reference populations.