Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 3r9pA 5mp7A 5ok4A 3r9pA 100 64 43 5mp7A 61 100 73 5ok4A 100 83 100 FOLD SIMILARITY (Z-SCORE) 3r9pA 5mp7A 5ok4A 3r9pA 65.5 2.1 0 5mp7A 1.8 50.7 0.4 5ok4A 0.6 0.4 51.6