Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1h6wA 2wb3A 3pzyA 1h6wA 100 0 0 2wb3A 0 100 0 3pzyA 0 0 100 FOLD SIMILARITY (Z-SCORE) 1h6wA 2wb3A 3pzyA 1h6wA 15.6 0 0 2wb3A 0 17.2 0 3pzyA 0 0 34.7