Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2ahmA 2ahmE 4bg9A 2ahmA 100 0 0 2ahmE 0 100 57 4bg9A 0 81 100 FOLD SIMILARITY (Z-SCORE) 2ahmA 2ahmE 4bg9A 2ahmA 17.6 0 0 2ahmE 0 22.6 0 4bg9A 0 0 56.9