Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1y71A 1y71B 3hn3A 3lpfA 1y71A 100 97 65 29 1y71B 97 100 53 33 3hn3A 31 39 100 91 3lpfA 29 33 91 100 FOLD SIMILARITY (Z-SCORE) 1y71A 1y71B 3hn3A 3lpfA 1y71A 23.6 21.8 0 0 1y71B 21.8 24.1 0 0 3hn3A 0 0 69.6 48.5 3lpfA 0 0 48.4 70.1