Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1dg6A 1s55A 4ht1T 4j6gA 1dg6A 100 73 66 68 1s55A 72 100 65 62 4ht1T 66 65 100 66 4j6gA 68 63 66 100 FOLD SIMILARITY (Z-SCORE) 1dg6A 1s55A 4ht1T 4j6gA 1dg6A 30 20.3 14.3 19.9 1s55A 20.3 31.9 14.1 19.7 4ht1T 14.3 14.1 29.3 14.3 4j6gA 19.9 19.6 14.3 30.4