Lineage for Fold f.55: Photosystem II antenna protein-like

1. Root: SCOPe 2.08

2. Class f: Membrane and cell surface proteins and peptides [56835] (69 folds)

3. Fold f.55: Photosystem II antenna protein-like [161076] (1 superfamily) 6 transmembrane helices arranged in three antiparallel pairs (hairpins), segregated by cofactors; there can be insertions of different small subdomains in different exposed loops