Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2f5gA 2vjvA 2f5gA 100 65 2vjvA 65 100 FOLD SIMILARITY (Z-SCORE) 2f5gA 2vjvA 2f5gA 24.3 18.4 2vjvA 18.4 25.1