Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 3zgyC 3zgyD 5a9tA 3zgyC 100 93 87 3zgyD 93 100 89 5a9tA 87 89 100 FOLD SIMILARITY (Z-SCORE) 3zgyC 3zgyD 5a9tA 3zgyC 39.2 37.1 29.5 3zgyD 37.1 42.3 31.4 5a9tA 29.5 31.4 41.1