Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 3on5A 3on5B 4pd6A 3on5A 100 98 62 3on5B 98 100 91 4pd6A 66 89 100 FOLD SIMILARITY (Z-SCORE) 3on5A 3on5B 4pd6A 3on5A 50.8 40.9 0 3on5B 40.9 48.5 0.1 4pd6A 0 0.1 75.6