Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2h5nC 2h5nD 5lefC 5lefD 2h5nC 100 99 0 0 2h5nD 99 100 0 0 5lefC 0 0 100 6 5lefD 0 0 6 100 FOLD SIMILARITY (Z-SCORE) 2h5nC 2h5nD 5lefC 5lefD 2h5nC 29.5 26.3 0 0 2h5nD 26.3 29.3 0 0 5lefC 0 0 6.8 5.6 5lefD 0 0 5.6 6.7