Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 5llyC 5llyD 5t13A 5llyC 100 99 63 5llyD 99 100 71 5t13A 74 77 100 FOLD SIMILARITY (Z-SCORE) 5llyC 5llyD 5t13A 5llyC 56.7 49.8 0 5llyD 49.8 55.9 0 5t13A 0 0 73.6