Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1s7mA 1s7mB 1s7mC 3d9xA 1s7mA 100 99 99 44 1s7mB 99 100 99 44 1s7mC 99 99 100 44 3d9xA 43 44 43 100 FOLD SIMILARITY (Z-SCORE) 1s7mA 1s7mB 1s7mC 3d9xA 1s7mA 19.8 18 18.4 3.1 1s7mB 18 19.7 18 3.2 1s7mC 18.4 18 19.8 3.1 3d9xA 3 3.1 3 12.7