Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1doaA 1doaB 1hh4A 1hh4D 1doaA 100 40 91 48 1doaB 57 100 0 87 1hh4A 91 0 100 50 1hh4D 55 92 0 100 FOLD SIMILARITY (Z-SCORE) 1doaA 1doaB 1hh4A 1hh4D 1doaA 36.9 0 31.6 0 1doaB 0 31.6 0 24.7 1hh4A 31.6 0 37.2 0 1hh4D 0 21.5 0 30.2