Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 5feyA 5feyB 5vzvA 5feyA 100 95 44 5feyB 95 100 39 5vzvA 44 39 100 FOLD SIMILARITY (Z-SCORE) 5feyA 5feyB 5vzvA 5feyA 18 15.4 9.7 5feyB 15.4 18.9 10.6 5vzvA 9.7 10.6 18.8