Lineage for Superfamily h.4.18: Gam-like

1. Root: SCOPe 2.08

2. Class h: Coiled coil proteins [57942] (7 folds)

3. Fold h.4: Antiparallel coiled-coil [58086] (19 superfamilies) this is not a true fold; contains at least two very long antiparallel helices

4. Superfamily h.4.18: Gam-like [161266] (1 family) homodimeric fold with a ring-like structure formed by kinked coiled-coil and a beta-ribboon, interrupted by small helical insertions