Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2f4pA 2f4pB 3ebrA 3oe3A 3oe3C 2f4pA 100 98 52 22 21 2f4pB 98 100 53 17 22 3ebrA 52 53 100 2 10 3oe3A 23 26 10 100 98 3oe3C 18 13 17 98 100 FOLD SIMILARITY (Z-SCORE) 2f4pA 2f4pB 3ebrA 3oe3A 3oe3C 2f4pA 30.2 26.9 8.8 0 0 2f4pB 26.9 30.1 10 0 0 3ebrA 8.9 10 30.9 0 0 3oe3A 0.3 0.2 0 20.8 18.4 3oe3C 0 0 0 18.4 21.3