Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1k04A 2cu5A 2cu5B 3mxqA 3mxqD 1k04A 100 0 0 0 0 2cu5A 0 100 98 20 35 2cu5B 0 98 100 29 35 3mxqA 0 27 33 100 99 3mxqD 0 34 34 99 100 FOLD SIMILARITY (Z-SCORE) 1k04A 2cu5A 2cu5B 3mxqA 3mxqD 1k04A 20.4 0 0 0 0 2cu5A 0 27.1 25 0 0 2cu5B 0 25 27 0 0 3mxqA 0 0 0 24.1 16.6 3mxqD 0 0 0 16.6 22.6