Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1umdA 1w85A 3u9lA 1umdA 100 87 36 1w85A 87 100 30 3u9lA 71 53 100 FOLD SIMILARITY (Z-SCORE) 1umdA 1w85A 3u9lA 1umdA 64.8 44.2 2 1w85A 44.1 61.1 2 3u9lA 1.5 0 49.2