Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1o4vA 3orsA 4z7jA 1o4vA 100 80 82 3orsA 80 100 79 4z7jA 82 79 100 FOLD SIMILARITY (Z-SCORE) 1o4vA 3orsA 4z7jA 1o4vA 31.8 28.6 27.4 3orsA 28.6 32.8 28.6 4z7jA 27.4 28.6 33.4