Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1gutA 1ssqA 4ea9A 4h7oA 4hzdA 1gutA 100 0 3 0 0 1ssqA 0 100 96 88 81 4ea9A 13 100 100 100 100 4h7oA 0 88 92 100 81 4hzdA 0 81 100 81 100 FOLD SIMILARITY (Z-SCORE) 1gutA 1ssqA 4ea9A 4h7oA 4hzdA 1gutA 15.2 0 0 0 0 1ssqA 0 45.1 13.4 39.4 37.3 4ea9A 0 9.7 41.2 7.3 11.6 4h7oA 0 39.4 9.4 48.8 37.2 4hzdA 0 37.3 5.9 37.2 45.3