- The 14-3-3 protein interacts directly with the C-terminal region of the plant plasma membrane H(+)-ATPase. Jahn, T., Fuglsang, A.T., Olsson, A., Brüntrup, I.M., Collinge, D.B., Volkmann, D., Sommarin, M., Palmgren, M.G., Larsson, C. Plant Cell (1997)