Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2rb9A 4q3kA 5tjjA 2rb9A 100 71 40 4q3kA 69 100 56 5tjjA 38 54 100 FOLD SIMILARITY (Z-SCORE) 2rb9A 4q3kA 5tjjA 2rb9A 56.1 0 0 4q3kA 0.5 47.8 1.6 5tjjA 0 1.6 39.3