Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1b9hA 3rv0A 4lqcA 5tvlA 1b9hA 100 62 41 68 3rv0A 58 100 0 76 4lqcA 40 0 100 61 5tvlA 66 79 38 100 FOLD SIMILARITY (Z-SCORE) 1b9hA 3rv0A 4lqcA 5tvlA 1b9hA 71 0 2.2 0 3rv0A 0 30.1 0 0 4lqcA 2.3 0 29.7 0 5tvlA 0 0 0.5 32.3