Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1j30A 3pwfA 3u1hA 4mfvA 4rqoA 1j30A 100 70 85 100 98 3pwfA 70 100 65 93 92 3u1hA 0 0 100 15 65 4mfvA 30 92 49 100 100 4rqoA 0 0 40 46 100 FOLD SIMILARITY (Z-SCORE) 1j30A 3pwfA 3u1hA 4mfvA 4rqoA 1j30A 22.6 13.4 0 4.9 0.6 3pwfA 13.4 26.4 0 5 0.7 3u1hA 0 0 62 0.4 0 4mfvA 4.2 4.9 0 55.5 0.5 4rqoA 0 0 0.2 0 73.3