Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2gsvA 2zatA 5ntdH 2gsvA 100 0 0 2zatA 0 100 62 5ntdH 0 76 100 FOLD SIMILARITY (Z-SCORE) 2gsvA 2zatA 5ntdH 2gsvA 16.1 1.1 1.2 2zatA 0 48.4 0.8 5ntdH 1.8 1.5 70