Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 3bvfA 5u1aA 5u1aC 3bvfA 100 96 95 5u1aA 96 100 99 5u1aC 95 99 100 FOLD SIMILARITY (Z-SCORE) 3bvfA 5u1aA 5u1aC 3bvfA 31.7 28.6 28.4 5u1aA 28.6 32 30.1 5u1aC 28.4 30.1 31.8