Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1i2kA 3daaA 1i2kA 100 80 3daaA 80 100 FOLD SIMILARITY (Z-SCORE) 1i2kA 3daaA 1i2kA 47.1 31.1 3daaA 31.1 48.1