Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2nydA 2nydB 3wsfA 3wsfF 4xlzA 2nydA 100 99 80 80 67 2nydB 99 100 81 80 69 3wsfA 80 81 100 99 83 3wsfF 80 80 99 100 60 4xlzA 72 71 60 56 100 FOLD SIMILARITY (Z-SCORE) 2nydA 2nydB 3wsfA 3wsfF 4xlzA 2nydA 47.3 44.9 27.3 27.6 2.9 2nydB 44.9 50.2 27.3 27.6 3.1 3wsfA 27.3 27.3 43.8 41.9 0.5 3wsfF 27.7 27.6 41.9 43.6 0.3 4xlzA 2.8 2.8 0.2 0.3 46.7