Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 5ajsC 6f63A 6f63C 5ajsC 100 8 8 6f63A 8 100 99 6f63C 8 99 100 FOLD SIMILARITY (Z-SCORE) 5ajsC 6f63A 6f63C 5ajsC 7.5 4.8 4.8 6f63A 4.8 8.6 7.9 6f63C 4.8 7.9 8.5