Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2xg5A 2xg5B 2yvsA 4cayA 4cayB 4e2qA 2xg5A 100 33 37 0 0 58 2xg5B 32 100 32 0 0 45 2yvsA 34 29 100 0 0 61 4cayA 0 0 0 100 26 0 4cayB 0 0 0 15 100 0 4e2qA 54 71 55 0 0 100 FOLD SIMILARITY (Z-SCORE) 2xg5A 2xg5B 2yvsA 4cayA 4cayB 4e2qA 2xg5A 34.7 2 0 0 0 0 2xg5B 1.8 27 0 0 0 0 2yvsA 0 0 40.5 0 0 0 4cayA 0 0 0 16.1 5.7 0 4cayB 0 0 0 5.7 17.2 0 4e2qA 0 0 0 0 0 47.5