Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1sz2A 2qnlA 3oksA 1sz2A 100 0 85 2qnlA 55 100 49 3oksA 87 0 100 FOLD SIMILARITY (Z-SCORE) 1sz2A 2qnlA 3oksA 1sz2A 55.7 0 0.5 2qnlA 0 31.2 0 3oksA 0.5 0 73