Sequence Similarity : Non-homologous sequences (<30%) SEQUENCE SIMILARITY (%) 1gtvA 2vr5A 5k8jA 1gtvA 100 52 0 2vr5A 74 100 7 5k8jA 0 0 100 FOLD SIMILARITY (Z-SCORE) 1gtvA 2vr5A 5k8jA 1gtvA 41.3 0 0 2vr5A 0.3 71.8 0 5k8jA 0 0 10.3