Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 4b0hA 4oopA 4b0hA 100 58 4oopA 58 100 FOLD SIMILARITY (Z-SCORE) 4b0hA 4oopA 4b0hA 26.4 15.8 4oopA 15.8 26.3