Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1ut7A 1ut7B 3gafA 3r3sA 1ut7A 100 97 18 36 1ut7B 97 100 0 8 3gafA 23 39 100 78 3r3sA 39 53 78 100 FOLD SIMILARITY (Z-SCORE) 1ut7A 1ut7B 3gafA 3r3sA 1ut7A 27.6 23.9 0 0 1ut7B 23.9 28.4 0 0 3gafA 0 0 47.9 30 3r3sA 0 0 30 57.1