Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 4hfqA 5h0nA 5h0nD 4hfqA 100 0 0 5h0nA 0 100 0 5h0nD 0 0 0 FOLD SIMILARITY (Z-SCORE) 4hfqA 5h0nA 5h0nD 4hfqA 34.1 0 0 5h0nA 0 6.1 0 5h0nD 0 0 0