Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2j97A 3ij4A 3v9rA 3v9rB 2j97A 100 40 0 0 3ij4A 0 100 0 0 3v9rA 0 4 100 7 3v9rB 0 9 5 100 FOLD SIMILARITY (Z-SCORE) 2j97A 3ij4A 3v9rA 3v9rB 2j97A 22.6 0 0 0 3ij4A 0 56.5 0 0 3v9rA 0 3.7 15.5 3.1 3v9rB 0 0.8 3.2 14