Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2octA 3eupA 3eupB 2octA 100 0 0 3eupA 0 100 98 3eupB 0 98 100 FOLD SIMILARITY (Z-SCORE) 2octA 3eupA 3eupB 2octA 14.4 0 0 3eupA 0 34.7 31.6 3eupB 0 31.6 34.5