| SCOP superfamily ID | superfamiily description | corresponding fold description |
|---|---|---|
| d.106.1 | SCP-like | SCP-like alpha-beta(3)-(crossover)-beta-(alpha)-beta; 3 layers: a/b/a; antiparallel beta-sheet of 5 strands; order: 32145 |
| e.38.1 | Release factor | Release factor 4 domains: (1) 3-helical bundle; (2) alpha+beta of ferredoxin-like fold (3 and 4) alpha+beta of dsRDB-like fold |