Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1g8kA 1g8kB 3hm4A 3hm4B 1g8kA 100 34 36 31 1g8kB 89 100 7 62 3hm4A 32 6 100 98 3hm4B 31 0 98 100 FOLD SIMILARITY (Z-SCORE) 1g8kA 1g8kB 3hm4A 3hm4B 1g8kA 74.3 0 0 0 1g8kB 0 30.2 0 0 3hm4A 0 0 34.2 29.9 3hm4B 0 0 29.9 33.6