Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1rtwA 4wx0A 5j0lA 5j0lB 1rtwA 100 70 38 28 4wx0A 70 100 0 0 5j0lA 46 59 100 93 5j0lB 48 59 93 100 FOLD SIMILARITY (Z-SCORE) 1rtwA 4wx0A 5j0lA 5j0lB 1rtwA 40 21.2 3.2 3 4wx0A 21.2 45.7 0 0 5j0lA 0 3.8 22.9 19.4 5j0lB 0 3.6 19.4 22.2