Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1yuzA 4lw4A 4lw4B 1yuzA 100 9 23 4lw4A 33 100 98 4lw4B 0 98 100 FOLD SIMILARITY (Z-SCORE) 1yuzA 4lw4A 4lw4B 1yuzA 39.9 0 0 4lw4A 0 70 66.7 4lw4B 0 66.7 70.9