Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2bhvA 4hhdA 4hhdB 2bhvA 100 52 41 4hhdA 45 100 96 4hhdB 66 96 100 FOLD SIMILARITY (Z-SCORE) 2bhvA 4hhdA 4hhdB 2bhvA 32.5 0 0 4hhdA 0 31 25.6 4hhdB 0 25.6 30.7