Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2i1oA 3oamA 3polA 2i1oA 100 38 39 3oamA 39 100 84 3polA 49 84 100 FOLD SIMILARITY (Z-SCORE) 2i1oA 3oamA 3polA 2i1oA 63.4 0.1 0 3oamA 0 44.4 33.6 3polA 0 33.6 45.4