Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1rliA 1rliB 1rliC 1rliD 4ktbA 4ktbB 1rliA 100 99 91 90 43 43 1rliB 99 100 91 91 52 38 1rliC 91 91 100 99 50 45 1rliD 90 91 99 100 54 0 4ktbA 34 52 47 57 100 99 4ktbB 38 42 41 50 99 100 FOLD SIMILARITY (Z-SCORE) 1rliA 1rliB 1rliC 1rliD 4ktbA 4ktbB 1rliA 33.4 31.1 27.9 28.1 0 0 1rliB 31.1 33.8 28.2 28.5 0 0 1rliC 27.9 28.2 35.2 33.2 0 0 1rliD 28.1 28.5 33.2 35.7 0 0 4ktbA 0 0 0 0 34.2 31.5 4ktbB 0 0 0 0 31.5 34