Prediction of the membrane-inserting residues for the 20 known peripheral membrane proteins. Each panel presents two side-by-side views of the same protein, with residues on the left colored based on experimental data (blue – negative, red - positive), and on the right based on MODA’s predicted membrane-propensity scores (white – low, green - high). Heteroatoms are shown in magenta sticks, and metal ions in CPK.