Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1gutA 1h9sA 1h9sB 1gutA 100 30 30 1h9sA 30 100 99 1h9sB 30 99 100 FOLD SIMILARITY (Z-SCORE) 1gutA 1h9sA 1h9sB 1gutA 15.2 9.4 9.3 1h9sA 9.4 28.6 26 1h9sB 9.3 26 28.8