Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 4jvuA 4jvuB 5e7fA 5e7fG 4jvuA 100 85 44 30 4jvuB 85 100 37 31 5e7fA 45 38 100 50 5e7fG 36 19 42 100 FOLD SIMILARITY (Z-SCORE) 4jvuA 4jvuB 5e7fA 5e7fG 4jvuA 23.1 17.8 4.9 1 4jvuB 17.8 22.1 6 2 5e7fA 4.9 6 29.1 1.5 5e7fG 0 0 1.5 26.4