Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 4dx5B 4i4tA 4i4tB 4dx5B 100 100 100 4i4tA 83 100 91 4i4tB 81 91 100 FOLD SIMILARITY (Z-SCORE) 4dx5B 4i4tA 4i4tB 4dx5B 71.7 0 0 4i4tA 0.6 71.9 56.3 4i4tB 0 56.3 76.7