Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1mt5A 2r11A 2r11B 1mt5A 100 73 72 2r11A 71 100 99 2r11B 73 99 100 FOLD SIMILARITY (Z-SCORE) 1mt5A 2r11A 2r11B 1mt5A 75.5 1.8 1.6 2r11A 1.9 54.5 51.2 2r11B 1.9 51.2 54.9