Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1sg2A 1sg2B 5dnlA 1sg2A 100 91 17 1sg2B 75 100 0 5dnlA 19 0 100 FOLD SIMILARITY (Z-SCORE) 1sg2A 1sg2B 5dnlA 1sg2A 20 10.9 0 1sg2B 13.7 19.3 0 5dnlA 0 0 37.5