Percentage frequencies and propensities of amino acid residues at protein interfaces of PP complexes from the ABC dataset.

<p>(A) Percentage frequencies of amino acid residues at protein interfaces. (B) Propensities of amino acid residues at protein interfaces. PP, protein-protein; ABC, ABC dataset; homo, homodimeric PP interface; hetero, heterodimeric PP interfaces; P1, protein interface of the first protein (Pi1); P2, protein interface of the second protein (Pi2).