Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 2bjnA 2bjnB 4ub6A 4ub6C 2bjnA 100 93 0 23 2bjnB 93 100 0 39 4ub6A 0 0 100 65 4ub6C 17 42 61 100 FOLD SIMILARITY (Z-SCORE) 2bjnA 2bjnB 4ub6A 4ub6C 2bjnA 30 26.2 0 0 2bjnB 26.2 30.9 0 0 4ub6A 0 0 43.4 2.7 4ub6C 0 0 0.6 58