Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1qqhA 5lu5A 5lu5D 1qqhA 100 60 60 5lu5A 48 100 99 5lu5D 41 99 100 FOLD SIMILARITY (Z-SCORE) 1qqhA 5lu5A 5lu5D 1qqhA 28.1 0 0 5lu5A 0 38.3 36.4 5lu5D 0 36.4 38.4