Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2wbvA 2wbvB 2wbvD 3n4hA 2wbvA 100 98 99 21 2wbvB 98 100 99 26 2wbvD 99 99 100 26 3n4hA 22 28 22 100 FOLD SIMILARITY (Z-SCORE) 2wbvA 2wbvB 2wbvD 3n4hA 2wbvA 37 35.3 35.4 0 2wbvB 35.3 37.2 35.1 0 2wbvD 35.4 35.1 37.1 0 3n4hA 0 0 0 25.5