Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1rqbA 2nx9A 4wmlA 1rqbA 100 93 65 2nx9A 93 100 91 4wmlA 81 88 100 FOLD SIMILARITY (Z-SCORE) 1rqbA 2nx9A 4wmlA 1rqbA 67.9 55.8 0 2nx9A 55.8 69.7 1.1 4wmlA 0.6 0.6 40.1