Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1tk9A 5lu5A 5lu5D 1tk9A 100 75 76 5lu5A 83 100 99 5lu5D 83 99 100 FOLD SIMILARITY (Z-SCORE) 1tk9A 5lu5A 5lu5D 1tk9A 37.8 31.1 31.2 5lu5A 30.5 38.3 36.4 5lu5D 30.5 36.4 38.4