Rotation of V1 molecule at 1 μm ATP.
A, trajectory of a single V1 molecule at 1 μm ATP. Inset, X-Y trajectory of the same V1 molecule for which the trajectory was shown. B, dwell time histogram of V1 at 1 μm ATP. Data are well fitted with a single exponential, providing the time constant as 0.57 s. The number of molecules was 3, and the number of trials used for dwell time analysis was 654.