Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1p9hA 1qexA 2ii3A 4al0A 5yfjA 1p9hA 100 69 18 0 72 1qexA 65 100 46 0 87 2ii3A 55 64 100 0 78 4al0A 0 0 0 100 16 5yfjA 75 47 43 40 100 FOLD SIMILARITY (Z-SCORE) 1p9hA 1qexA 2ii3A 4al0A 5yfjA 1p9hA 30.5 0 0 0 0 1qexA 0 32.3 0 0 0 2ii3A 0 0 41.6 0 0 4al0A 0 0 0 26.1 1.3 5yfjA 0 0 0 2.6 55.8