Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1h6wA 1pf5A 5v4fA 1h6wA 100 0 0 1pf5A 0 100 69 5v4fA 0 69 100 FOLD SIMILARITY (Z-SCORE) 1h6wA 1pf5A 5v4fA 1h6wA 15.6 0 0 1pf5A 0 28.4 12.2 5v4fA 0 12.2 29