Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2c4nA 2ynmA 2c4nA 100 76 2ynmA 74 100 FOLD SIMILARITY (Z-SCORE) 2c4nA 2ynmA 2c4nA 46.3 0.2 2ynmA 0.9 50.8