Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2ux1A 2xgwA 2ux1A 100 78 2xgwA 78 100 FOLD SIMILARITY (Z-SCORE) 2ux1A 2xgwA 2ux1A 31.2 27.1 2xgwA 27.1 34