Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1t0iA 1t0iB 5nc6B 1t0iA 100 95 25 1t0iB 95 100 44 5nc6B 31 45 100 FOLD SIMILARITY (Z-SCORE) 1t0iA 1t0iB 5nc6B 1t0iA 37.1 32.4 0 1t0iB 32.4 36 0.9 5nc6B 0 0.8 41.9