Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1vlsA 2d4uA 2d4uB 1vlsA 100 67 69 2d4uA 67 100 51 2d4uB 54 94 100 FOLD SIMILARITY (Z-SCORE) 1vlsA 2d4uA 2d4uB 1vlsA 26.8 18.4 18.9 2d4uA 18.4 26.8 12.3 2d4uB 11.5 24.4 27.1