Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2gsmA 2gsmB 2y69A 2y69B 2gsmA 100 53 91 26 2gsmB 0 100 0 74 2y69A 91 39 100 52 2y69B 0 75 0 100 FOLD SIMILARITY (Z-SCORE) 2gsmA 2gsmB 2y69A 2y69B 2gsmA 69.8 0.6 58.3 1.1 2gsmB 0 38.6 0 25.6 2y69A 58.3 1.7 68.2 0 2y69B 0 25.6 0 33.1