Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2nvmA 3kdgA 3kdgB 2nvmA 100 31 30 3kdgA 30 100 99 3kdgB 31 99 100 FOLD SIMILARITY (Z-SCORE) 2nvmA 3kdgA 3kdgB 2nvmA 22 0 0 3kdgA 0 30.1 25.2 3kdgB 0 25.2 30.6