Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 4cnnA 4ky9A 5lpgA 4cnnA 100 0 42 4ky9A 75 100 30 5lpgA 56 47 100 FOLD SIMILARITY (Z-SCORE) 4cnnA 4ky9A 5lpgA 4cnnA 47.9 0 0 4ky9A 0 49.8 0 5lpgA 0 0 33.8