Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2g7oA 3on0A 3on0B 3on0D 2g7oA 100 15 15 16 3on0A 9 100 96 93 3on0B 0 96 100 90 3on0D 14 93 90 100 FOLD SIMILARITY (Z-SCORE) 2g7oA 3on0A 3on0B 3on0D 2g7oA 11 8.4 8.1 8 3on0A 3.1 12.7 10.9 10.5 3on0B 5.4 10.9 13.3 10.9 3on0D 7.7 10.5 10.9 12.6