Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2ygkA 3pqiA 2ygkA 100 87 3pqiA 89 100 FOLD SIMILARITY (Z-SCORE) 2ygkA 3pqiA 2ygkA 48.9 0 3pqiA 0 22.7