Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1ox3A 3ntnA 3ntnB 3wmiA 4ypcA 5absA 1ox3A 100 52 50 6 4 9 3ntnA 54 100 97 0 11 0 3ntnB 61 97 100 0 0 0 3wmiA 8 0 0 100 7 5 4ypcA 18 5 5 7 100 3 5absA 2 0 2 4 7 100 FOLD SIMILARITY (Z-SCORE) 1ox3A 3ntnA 3ntnB 3wmiA 4ypcA 5absA 1ox3A 13 0 0 3.2 2.4 2.9 3ntnA 0 30.1 28.4 3.1 2.3 2.6 3ntnB 0 28.4 30.8 0 0 0 3wmiA 3.1 2.3 2.9 7.3 5.2 6 4ypcA 2.4 2 2.6 5.2 8.1 5.1 5absA 2.8 0.2 0.3 5.7 5 7.9