Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2fm8A 2fm8B 4zqgA 2fm8A 100 92 98 2fm8B 92 100 71 4zqgA 83 88 100 FOLD SIMILARITY (Z-SCORE) 2fm8A 2fm8B 4zqgA 2fm8A 28.8 22 0 2fm8B 22 27.2 0 4zqgA 2.8 0 74.9