|Class f: Membrane and cell surface proteins and peptides  (69 folds)|
|Fold f.4: Transmembrane beta-barrels  (7 superfamilies)|
not a true fold, gathers together transmembrane barrels of different (n,S)
annotated by the SCOP(e) curators as 'not a true fold'
|Superfamily f.4.6: Tsx-like channel  (1 family) |
forms (12,16) barrel
automatically mapped to Pfam PF03502
Timeline for Superfamily f.4.6: Tsx-like channel: