Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2a33A 2a33B 5itsA 5itsB 2a33A 100 99 77 78 2a33B 99 100 78 77 5itsA 77 78 100 97 5itsB 78 77 97 100 FOLD SIMILARITY (Z-SCORE) 2a33A 2a33B 5itsA 5itsB 2a33A 36.9 33.1 29.4 28.6 2a33B 33.1 37.2 29.3 28.5 5itsA 29.4 29.3 38.4 34.3 5itsB 28.6 28.5 34.3 39