Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 4ynhA 5gv2A 4ynhA 100 0 5gv2A 0 100 FOLD SIMILARITY (Z-SCORE) 4ynhA 5gv2A 4ynhA 10.6 0 5gv2A 0 55.5