Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2f3zA 2f3zB 2vayA 2vayB 2f3zA 100 0 100 0 2f3zB 0 0 0 0 2vayA 0 0 0 0 2vayB 0 0 0 0 FOLD SIMILARITY (Z-SCORE) 2f3zA 2f3zB 2vayA 2vayB 2f3zA 27 0 24.1 0 2f3zB 0 0 0 0 2vayA 0 0 0 0 2vayB 0 0 0 0