Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1tzfA 4c2mA 4c2mB 1tzfA 100 88 78 4c2mA 38 100 94 4c2mB 44 94 100 FOLD SIMILARITY (Z-SCORE) 1tzfA 4c2mA 4c2mB 1tzfA 42.6 0 0 4c2mA 0 62.6 0.4 4c2mB 0 0.5 69.6