Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 3cq5A 3cq5B 4r5zA 3cq5A 100 99 86 3cq5B 99 100 86 4r5zA 86 86 100 FOLD SIMILARITY (Z-SCORE) 3cq5A 3cq5B 4r5zA 3cq5A 63.1 61 42.5 3cq5B 61 63.2 42.6 4r5zA 42.5 42.6 62