Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1t5oA 2ahmA 2fdoA 3louA 5g4dA 1t5oA 100 0 41 100 24 2ahmA 16 100 0 0 0 2fdoA 58 0 100 22 0 3louA 100 0 19 100 11 5g4dA 29 0 0 14 100 FOLD SIMILARITY (Z-SCORE) 1t5oA 2ahmA 2fdoA 3louA 5g4dA 1t5oA 60.1 4.7 0 3.8 0 2ahmA 0.3 17.6 0 0 0 2fdoA 0 0 16 0 0 3louA 3.9 0 0 44.8 3.2 5g4dA 0.6 0 0 4.4 18.5