Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1k6yA 1zmtB 3qx3A 1k6yA 100 56 85 1zmtB 51 100 68 3qx3A 73 49 100 FOLD SIMILARITY (Z-SCORE) 1k6yA 1zmtB 3qx3A 1k6yA 32.5 0 0 1zmtB 0 46.3 1.7 3qx3A 0 0 55.9