Lineage for Family c.52.1.20: XPF/Rad1/Mus81 nuclease
- Root: SCOP 1.69
Class c: Alpha and beta proteins (a/b) [51349] (136 folds) 
Fold c.52: Restriction endonuclease-like [52979] (3 superfamilies)
core: 3 layers, a/b/a; mixed beta-sheet of 5 strands, order 12345; strands 2 &, in some families, 5 are antiparallel to the restSuperfamily c.52.1: Restriction endonuclease-like [52980] (23 families) 
Family c.52.1.20: XPF/Rad1/Mus81 nuclease [89716] (1 protein)
Protein:
Putative ATP-dependent RNA helicase Hef, nuclease domain [89717] (1 species) Species Archaeon Pyrococcus furiosus [TaxId:2261] [89718] (4 PDB entries)
More info for Family c.52.1.20: XPF/Rad1/Mus81 nuclease
Timeline for Family c.52.1.20: XPF/Rad1/Mus81 nuclease:
- Family c.52.1.20: XPF/Rad1/Mus81 nuclease first appeared in SCOP 1.65
- Family c.52.1.20: XPF/Rad1/Mus81 nuclease appears in SCOP 1.67
- Family c.52.1.20: XPF/Rad1/Mus81 nuclease appears in SCOP 1.71
- Family c.52.1.20: XPF/Rad1/Mus81 nuclease appears in the current release, SCOPe 2.08