Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 3n27A 3n27B 3n27C 5i8jA 5medA 3n27A 100 89 46 0 6 3n27B 89 100 9 0 15 3n27C 46 9 100 0 1 5i8jA 0 0 0 100 0 5medA 9 22 2 0 100 FOLD SIMILARITY (Z-SCORE) 3n27A 3n27B 3n27C 5i8jA 5medA 3n27A 13.2 11.5 6.4 0 0.8 3n27B 11.5 13.9 8.3 0 0.7 3n27C 6.4 8.3 12.9 0 1.8 5i8jA 0 0 0 15.9 0.2 5medA 2.9 2.7 2.9 0.1 64.2