Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 3qr8A 4s37A 4s37B 4s37C 3qr8A 100 100 100 71 4s37A 71 100 97 98 4s37B 71 97 100 99 4s37C 71 98 99 100 FOLD SIMILARITY (Z-SCORE) 3qr8A 4s37A 4s37B 4s37C 3qr8A 20.7 3.6 3.6 13 4s37A 12.6 21.3 20 20.1 4s37B 13 20 21.4 20.2 4s37C 13 20.1 20.2 21.4