| Class d: Alpha and beta proteins (a+b) [53931] (334 folds) |
| Fold d.24: Pili subunits [54522] (1 superfamily) contains very long N-terminal helix, which end is packed against beta-sheet |
Superfamily d.24.1: Pili subunits [54523] (4 families) ![]() bacterial filament proteins |
| d.24.1.1: Pilin [54524] (4 proteins) |
| d.24.1.2: TcpA-like pilin [89868] (1 protein) common fold is decorated with additional structures |
| d.24.1.3: Pseudopilin [117865] (1 protein) |
| d.24.1.4: YadA C-terminal domain-like [143107] (1 protein) Pfam PF03895; trimerizes with the formation of closed beta-barrel (n=12, S=12), wrapped around triple parallel coiled coil |
Timeline for Superfamily d.24.1: Pili subunits: