Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 3gmjD 4lrvA 4lrvM 3gmjD 100 0 0 4lrvA 24 100 97 4lrvM 20 97 100 FOLD SIMILARITY (Z-SCORE) 3gmjD 4lrvA 4lrvM 3gmjD 36.8 0 0 4lrvA 0.4 25.8 20.8 4lrvM 0.5 20.8 25.6