Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 3a7pA 3a7pB 4h22A 4h22B 3a7pA 100 16 25 27 3a7pB 16 100 13 13 4h22A 25 13 100 99 4h22B 27 13 99 100 FOLD SIMILARITY (Z-SCORE) 3a7pA 3a7pB 4h22A 4h22B 3a7pA 8.5 6.3 6.7 6.9 3a7pB 6.3 8 6.6 6.5 4h22A 6.7 6.6 8.2 7 4h22B 6.9 6.5 7 8.3