Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2o1sA 2o1sB 3w6sA 2o1sA 100 97 34 2o1sB 97 100 32 3w6sA 91 84 100 FOLD SIMILARITY (Z-SCORE) 2o1sA 2o1sB 3w6sA 2o1sA 63 54.5 0 2o1sB 54.5 62.2 0 3w6sA 0 0 43