Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1mkmA 4lzkB 4lzkF 1mkmA 100 48 56 4lzkB 63 100 97 4lzkF 89 97 100 FOLD SIMILARITY (Z-SCORE) 1mkmA 4lzkB 4lzkF 1mkmA 38.3 0 0 4lzkB 0 31.4 29.3 4lzkF 0 29.3 31.8