Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 4pl0A 4pl0B 4w6yA 5xuxA 5xuxB 4pl0A 100 98 64 83 100 4pl0B 98 100 66 80 76 4w6yA 11 64 100 35 58 5xuxA 80 26 41 100 96 5xuxB 73 74 19 96 100 FOLD SIMILARITY (Z-SCORE) 4pl0A 4pl0B 4w6yA 5xuxA 5xuxB 4pl0A 46.2 43.5 0 2.4 0 4pl0B 43.5 46.3 0 2.1 2.2 4w6yA 0 0 30 0 0 5xuxA 0 0 0 44.2 39.2 5xuxB 2.3 2 0 39.2 42.4