Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2z9vA 3viqA 3viqB 2z9vA 100 85 0 3viqA 36 100 18 3viqB 24 35 100 FOLD SIMILARITY (Z-SCORE) 2z9vA 3viqA 3viqB 2z9vA 73 0 0 3viqA 0 15 0.2 3viqB 0.3 4.2 10.6