Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1f3mB 1f3mD 1n7sA 1n7sB 1f3mB 100 0 0 0 1f3mD 10 100 0 0 1n7sA 12 3 100 8 1n7sB 6 0 5 100 FOLD SIMILARITY (Z-SCORE) 1f3mB 1f3mD 1n7sA 1n7sB 1f3mB 12.9 0 0 0 1f3mD 0 47.9 0 0 1n7sA 0.4 0 7.6 6.4 1n7sB 0.1 0 6.3 7.8