Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 3b0bA 3b0bB 4ne3A 3b0bA 100 97 84 3b0bB 97 100 86 4ne3A 77 78 100 FOLD SIMILARITY (Z-SCORE) 3b0bA 3b0bB 4ne3A 3b0bA 16.8 15 9.3 3b0bB 15 17 9.4 4ne3A 13.8 14.2 16.5