Structure of the SecY channel during initiation of protein translocation.

Park E., Ménétret J.F., Gumbart J.C., Ludtke S.J., Li W., Whynot A., Rapoport T.A., and Akey C.W.
Structure of the SecY channel during initiation of protein translocation.
Nature. 506(7486):102-6. doi: 10.1038/nature12720. (2014) (Abstract)