Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 2hydA 3rlfA 3vx4A 4pl0A 4pl0B 2hydA 100 77 71 95 95 3rlfA 69 100 78 100 69 3vx4A 100 78 100 100 100 4pl0A 100 69 71 100 98 4pl0B 95 69 71 98 100 FOLD SIMILARITY (Z-SCORE) 2hydA 3rlfA 3vx4A 4pl0A 4pl0B 2hydA 44.9 5.2 25.8 28 27.7 3rlfA 21.8 57.2 25.1 1 24.3 3vx4A 12.5 25.1 43.6 9.8 9.8 4pl0A 25.4 24.2 29.9 46.2 43.5 4pl0B 27.7 24.3 29.6 43.5 46.3