Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 3a8uX 4ppmA 5ax6A 5lhaA 3a8uX 100 86 62 88 4ppmA 91 100 86 90 5ax6A 63 91 100 29 5lhaA 92 90 26 100 FOLD SIMILARITY (Z-SCORE) 3a8uX 4ppmA 5ax6A 5lhaA 3a8uX 69.8 47.1 0 50.3 4ppmA 47.1 71.8 0 50.9 5ax6A 0 0 43.6 0 5lhaA 50.1 51 0 72.7