Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2a79B 2qksA 3ldcA 3spcA 2a79B 100 56 16 64 2qksA 16 100 20 96 3ldcA 15 19 100 21 3spcA 70 86 21 100 FOLD SIMILARITY (Z-SCORE) 2a79B 2qksA 3ldcA 3spcA 2a79B 26.5 10.2 7.4 9.5 2qksA 0 38.4 6.9 27.4 3ldcA 9.2 8.9 19.2 8.8 3spcA 0 27.6 8.6 38.9