Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 5l8rA 5l8rC 5oy01 5oy03 5l8rA 100 0 97 0 5l8rC 0 100 33 90 5oy01 97 0 100 0 5oy03 11 90 26 100 FOLD SIMILARITY (Z-SCORE) 5l8rA 5l8rC 5oy01 5oy03 5l8rA 52.3 0 44.7 0 5l8rC 0 19.3 0 17.3 5oy01 44.7 0 57.6 0 5oy03 0 17.3 0 19.3