Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1sg1A 1sg1B 1zlpA 5uncA 1sg1A 100 98 33 36 1sg1B 98 100 16 36 1zlpA 38 45 100 83 5uncA 21 0 83 100 FOLD SIMILARITY (Z-SCORE) 1sg1A 1sg1B 1zlpA 5uncA 1sg1A 18.2 15.3 0 0 1sg1B 15.3 18.3 0 0 1zlpA 0 0 50.5 34.5 5uncA 0 0 34.5 49.7