Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 3eufA 3ku4A 3ku4B 3eufA 100 93 93 3ku4A 93 100 99 3ku4B 93 99 100 FOLD SIMILARITY (Z-SCORE) 3eufA 3ku4A 3ku4B 3eufA 52.5 45.8 46 3ku4A 45.8 52.3 48.7 3ku4B 46 48.7 52.8