Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1j3wA 1j3wB 4b2oA 1j3wA 100 97 74 1j3wB 97 100 74 4b2oA 29 31 100 FOLD SIMILARITY (Z-SCORE) 1j3wA 1j3wB 4b2oA 1j3wA 30.2 27.4 0 1j3wB 27.4 30.6 0 4b2oA 0 0 52