Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2a33A 2a33B 5zbjA 2a33A 100 99 80 2a33B 99 100 81 5zbjA 80 81 100 FOLD SIMILARITY (Z-SCORE) 2a33A 2a33B 5zbjA 2a33A 36.9 33.1 29.2 2a33B 33.1 37.2 29.5 5zbjA 29.2 29.5 38.8