Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 3nwzA 3nwzC 5an6B 5b52A 3nwzA 100 96 0 0 3nwzC 96 100 0 0 5an6B 0 0 100 0 5b52A 6 3 0 100 FOLD SIMILARITY (Z-SCORE) 3nwzA 3nwzC 5an6B 5b52A 3nwzA 28.9 23.9 0 0 3nwzC 23.9 28.3 0 0 5an6B 0 0 13.6 3.2 5b52A 0 0 3 8