Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 4ml9A 4ml9B 4whsB 4ml9A 100 98 75 4ml9B 98 100 69 4whsB 61 75 100 FOLD SIMILARITY (Z-SCORE) 4ml9A 4ml9B 4whsB 4ml9A 51.8 48.2 0 4ml9B 48.2 52.6 0 4whsB 0 0 39.4