Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2rspA 2rspB 3besR 4h3vA 4xhyA 2rspA 100 98 34 48 50 2rspB 98 100 25 20 45 3besR 27 28 100 20 44 4h3vA 11 10 22 100 43 4xhyA 48 19 40 77 100 FOLD SIMILARITY (Z-SCORE) 2rspA 2rspB 3besR 4h3vA 4xhyA 2rspA 25.5 23.1 2.3 0 0 2rspB 23.1 25.2 1.8 0 2.3 3besR 1.9 1.7 32.1 0 0 4h3vA 0 0 0 67.9 0 4xhyA 0 0 0 0 32.3