Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1zlaA 1zlaB 2yfvA 2yfvB 3r45A 3r45B 4h9nA 4h9nB 1zlaA 100 14 40 13 52 14 92 20 1zlaB 15 100 15 92 20 99 13 95 2yfvA 40 19 100 17 47 17 37 15 2yfvB 13 92 14 100 24 85 11 81 3r45A 52 21 47 25 100 25 53 33 3r45B 14 99 15 85 25 100 14 96 4h9nA 92 14 37 16 53 14 100 23 4h9nB 25 95 17 81 38 96 22 100 FOLD SIMILARITY (Z-SCORE) 1zlaA 1zlaB 2yfvA 2yfvB 3r45A 3r45B 4h9nA 4h9nB 1zlaA 16.4 7.8 10 7.6 11 7.6 8.8 6.9 1zlaB 8.1 15 7.7 10.1 7.4 11.3 6 9.3 2yfvA 10 7.3 12.7 7.7 9.9 7.4 7.9 6.9 2yfvB 7.4 10.1 7.6 14.1 7.8 11.2 5.9 9.3 3r45A 11 7.3 9.9 8.1 14.5 8 8.3 6.6 3r45B 7.9 11.3 7.7 11.2 8 14.1 6.1 9.2 4h9nA 8.8 5.9 7.9 6.2 8.3 6.1 14.9 5.1 4h9nB 6.6 9.3 6.8 9.3 6.7 9.2 5.1 14.8