Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2o0yA 5tjjA 2o0yA 100 100 5tjjA 100 100 FOLD SIMILARITY (Z-SCORE) 2o0yA 5tjjA 2o0yA 39.5 21.6 5tjjA 21.6 39.3