Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2z2tA 5yb3D 2z2tA 100 97 5yb3D 97 100 FOLD SIMILARITY (Z-SCORE) 2z2tA 5yb3D 2z2tA 5.7 5.1 5yb3D 5.1 5.7