Animation of the fitted model of Na,K-ATPase. The shape reconstruction of Na,K-ATPase was done by simulated annealing using the program DAMMIN from D.Svergun, applying P2-symmetry and oblate shape constraints. The SANS experiment were performed at ILL Grenoble by M.Kriechbaum, E.Grell, E.Schick, P.Laggner and R.May.