Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 3cbgA 4jquA 4jquB 3cbgA 100 54 0 4jquA 26 100 0 4jquB 0 11 100 FOLD SIMILARITY (Z-SCORE) 3cbgA 4jquA 4jquB 3cbgA 42.9 0 0 4jquA 0 32.1 0 4jquB 0 0 11.4