Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2g9tA 2g9tF 4ru3A 2g9tA 100 99 40 2g9tF 99 100 32 4ru3A 39 46 100 FOLD SIMILARITY (Z-SCORE) 2g9tA 2g9tF 4ru3A 2g9tA 26.7 24.9 0 2g9tF 24.9 26.6 0 4ru3A 0 0 23.7