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. 2014 Jun 11;5:269. doi: 10.3389/fpls.2014.00269

Figure 4.

Figure 4

Targeting and assembly of Toc159 at TOC complexes. Toc159 is targeted to the outer membrane via interactions between its G- and M-domains with Toc34 and Toc75. Recognition of Toc159 by Toc34 and Toc75 might be assisted by a C-terminal sequence (CTS) within the M-domain, which has properties similar to a transit peptide. Insertion of the M-domain into the membrane is facilitated by nucleotide binding (GDP) at the G-domain, and assembly of Toc159 into TOC complexes results in functional translocons with the ability to import preproteins.