Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1qu1A 1qu1B 1qu1C 2w6bA 5d60A 5d60C 1qu1A 100 99 98 10 13 13 1qu1B 99 100 96 10 13 13 1qu1C 98 98 100 8 7 7 2w6bA 4 4 8 100 10 19 5d60A 5 6 8 20 100 13 5d60C 13 7 13 19 13 100 FOLD SIMILARITY (Z-SCORE) 1qu1A 1qu1B 1qu1C 2w6bA 5d60A 5d60C 1qu1A 15.5 12.5 12.5 3.3 3.8 4.1 1qu1B 9.3 16.6 13.7 3.1 3.6 3.9 1qu1C 12.5 13.9 16.4 3 3.4 3.7 2w6bA 3.3 3.1 3.2 7 5.7 5.5 5d60A 3.8 3.3 3.4 5.6 7.2 6.1 5d60C 4 3.8 3.1 5.5 6.1 7.4