Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 3bywA 4huqA 4huqB 3bywA 100 54 62 4huqA 33 100 86 4huqB 38 86 100 FOLD SIMILARITY (Z-SCORE) 3bywA 4huqA 4huqB 3bywA 30.7 0 0 4huqA 0 46.1 28.3 4huqB 0 28.1 45.5