Comparison of the crystal structure of AVR-PikF in complex with the HMA domain of OsHIPP19 (7B1I) with the previously published crystal structure of AVR-PikA in complex with the HMA domain of Pikm-1 (6FUD, (42)). The structures of AVR-PikF and OsHIPP19-HMA are represented as red and gray ribbons, respectively, with the molecular surface of OsHIPP19-HMA also shown. The structures of AVR-PikA and Pikm-HMA are represented as orange and gold ribbons, respectively, with the molecular surface of Pikm-HMA also shown. The side chains of amino acids of interest are displayed as cylinders. Hydrogen bonds are represented by dashed lines.