| SCOP superfamily ID | superfamiily description | corresponding fold description |
|---|---|---|
| b.40.5 | Inorganic pyrophosphatase | OB-fold barrel, closed or partly opened n=5, S=10 or S=8; greek-key |
| d.260.1 | Suppressor of Fused, N-terminal domain | Suppressor of Fused, N-terminal domain unusual fold; bifurcated beta-sheet; left-handed beta-alpha-beta unit |