Lineage for Fold f.17: Transmembrane helix hairpin
- Root: SCOP 1.73
Class f: Membrane and cell surface proteins and peptides [56835] (50 folds) 
Fold f.17: Transmembrane helix hairpin [81334] (3 superfamilies)
two antiparallel transmembrane helices
Superfamilies:
f.17.1: F1F0 ATP synthase subunit C [81333] (1 family) 
f.17.2: Cytochrome c oxidase subunit II-like, transmembrane region [81464] (1 family) 
f.17.3: Magnesium transport protein CorA, transmembrane region [144083] (1 family)
forms homopentameric channel
More info for Fold f.17: Transmembrane helix hairpin
Timeline for Fold f.17: Transmembrane helix hairpin:
- Fold f.17: Transmembrane helix hairpin first appeared in SCOP 1.63
- Fold f.17: Transmembrane helix hairpin appears in SCOP 1.71
- Fold f.17: Transmembrane helix hairpin appears in SCOP 1.75
- Fold f.17: Transmembrane helix hairpin appears in the current release, SCOPe 2.08