Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2gfnA 2gfnB 5w8xA 2gfnA 100 98 64 2gfnB 98 100 34 5w8xA 73 76 100 FOLD SIMILARITY (Z-SCORE) 2gfnA 2gfnB 5w8xA 2gfnA 35.4 31.2 0 2gfnB 31.2 35.5 0.2 5w8xA 0.8 0.9 47.4