Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2pfiA 2pfiB 3nojA 4le5A 2pfiA 100 98 65 76 2pfiB 98 100 68 10 3nojA 62 62 100 82 4le5A 77 26 86 100 FOLD SIMILARITY (Z-SCORE) 2pfiA 2pfiB 3nojA 4le5A 2pfiA 26.5 24.7 0 0 2pfiB 24.7 26.8 0 0 3nojA 0 0 42.1 0 4le5A 0 0 0 69.7