Fold: Phage tail protein-like [143748]
alpha-beta-X-beta(2)-alpha-beta(2); 2 layers: a/b; mixed beta-sheet: order 12354, strands 1 and 2 are parallel
Superfamilies:
Phage tail protein-like [143749] (2)
Can form ring, tube-like oligomers, where the subunit beta-sheets are joined in a single beta-sheet (or barrel) uperfamily