Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2oqeA 2q18X 3no7A 2oqeA 100 57 0 2q18X 50 100 0 3no7A 0 0 100 FOLD SIMILARITY (Z-SCORE) 2oqeA 2q18X 3no7A 2oqeA 72.3 0 0 2q18X 0 52.4 0 3no7A 0 0 11.5