Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 3gfhA 3qr8A 3t57A 5unqA 3gfhA 100 50 73 40 3qr8A 53 100 67 12 3t57A 85 66 100 61 5unqA 47 9 54 100 FOLD SIMILARITY (Z-SCORE) 3gfhA 3qr8A 3t57A 5unqA 3gfhA 41 0 0 0.7 3qr8A 0 20.7 0 0 3t57A 0 0 48.6 0 5unqA 0.7 0 0 25.4