Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2f9iA 2f9iB 5c5zA 5c5zB 2f9iA 100 85 33 26 2f9iB 90 100 43 39 5c5zA 31 32 100 99 5c5zB 26 68 99 100 FOLD SIMILARITY (Z-SCORE) 2f9iA 2f9iB 5c5zA 5c5zB 2f9iA 53.5 15.1 0 0 2f9iB 19 46.8 0 0 5c5zA 0 0 29.6 26.4 5c5zB 0 0 26.4 29.7