Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1zruA 1zruB 2vfmA 1zruA 100 99 49 1zruB 99 100 71 2vfmA 100 100 100 FOLD SIMILARITY (Z-SCORE) 1zruA 1zruB 2vfmA 1zruA 32.5 30.1 0 1zruB 30.1 32.3 0 2vfmA 0.8 0.8 71.7