Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2h6fA 2r2lA 2h6fA 100 98 2r2lA 98 100 FOLD SIMILARITY (Z-SCORE) 2h6fA 2r2lA 2h6fA 40.3 37.6 2r2lA 37.6 40.4