Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 4jnuA 5h1xA 5h1xB 4jnuA 100 8 8 5h1xA 8 100 9 5h1xB 8 4 100 FOLD SIMILARITY (Z-SCORE) 4jnuA 5h1xA 5h1xB 4jnuA 5.9 3.7 4 5h1xA 4.1 6.5 5 5h1xB 4 5 6.9