Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 4cq4A 4cq4B 5decB 5decC 4cq4A 100 96 38 35 4cq4B 96 100 38 44 5decB 0 0 100 98 5decC 0 0 98 100 FOLD SIMILARITY (Z-SCORE) 4cq4A 4cq4B 5decB 5decC 4cq4A 14.1 11.8 0 0 4cq4B 11.8 14 0 0 5decB 0 0 32.9 27.7 5decC 0 0 27.7 30.6