Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1c94A 4n5bA 4n5bB 4s37A 4s37C 1c94A 100 5 5 0 0 4n5bA 3 100 66 0 0 4n5bB 3 99 100 0 0 4s37A 0 0 0 100 98 4s37C 0 0 0 98 100 FOLD SIMILARITY (Z-SCORE) 1c94A 4n5bA 4n5bB 4s37A 4s37C 1c94A 5.7 2 2.2 0 0 4n5bA 1.2 10.8 4.6 0 0 4n5bB 1.1 9.9 10.8 0 0 4s37A 0 0 0 21.3 20.1 4s37C 0 0 0 20.1 21.4