Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2fs2A 2fs2B 2o1sA 2o1sB 2fs2A 100 95 39 50 2fs2B 95 100 52 60 2o1sA 37 56 100 97 2o1sB 46 56 97 100 FOLD SIMILARITY (Z-SCORE) 2fs2A 2fs2B 2o1sA 2o1sB 2fs2A 29 20.4 0 0 2fs2B 20.4 30.9 0 0 2o1sA 0 0 63 54.5 2o1sB 0 0 54.5 62.2