Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2vxtH 2vxtL 4p2oC 2vxtH 100 72 59 2vxtL 72 100 66 4p2oC 57 66 100 FOLD SIMILARITY (Z-SCORE) 2vxtH 2vxtL 4p2oC 2vxtH 31.8 18.1 14.6 2vxtL 18.1 31.8 15.2 4p2oC 14.6 15.2 30.4