Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 3ceaA 3ceaD 5t7oA 3ceaA 100 99 52 3ceaD 99 100 49 5t7oA 43 41 100 FOLD SIMILARITY (Z-SCORE) 3ceaA 3ceaD 5t7oA 3ceaA 59.5 54.5 0 3ceaD 54.5 58.4 2.2 5t7oA 2.8 2.7 60