Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 3a4jA 3bc8A 3a4jA 100 96 3bc8A 94 100 FOLD SIMILARITY (Z-SCORE) 3a4jA 3bc8A 3a4jA 64.5 3.1 3bc8A 2.4 65.7