ATP synthase F1 motor domainPDB ID: 1E79
ATP synthase is a rotary molecular motor that uses the flow of protons across a membrane to synthesize ATP. This structure includes the F1 portion of the molecule that synthesizes ATP, and the axle that connects it to the F0 domain.
The Structure of the Central Stalk in Bovine F(1)-ATPase at 2.4 A Resolution.
Gibbons, C., Montgomery, M.G., Leslie, A.G.W., Walker, J.E.
Journal: (2000) Nat.Struct.Biol. 7: 1055