FIGURE 3. Model of post-translational translocation in eukaryotes.
From the following article:
Protein translocation across the eukaryotic endoplasmic reticulum and bacterial plasma membranes
Tom A. Rapoport
Nature 450, 663-669(29 November 2007)
doi:10.1038/nature06384
It is possible that oligomers of the Sec61 complex mediate translocation, similar to the situation with the other modes of translocation (Figs 2 and 4).