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Annu Rev Cell Dev Biol. 2014;30:169-206. doi: 10.1146/annurev-cellbio-100913-013012. Epub 2014 Aug 18.

Protein sorting at the trans-Golgi network.

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Department of Molecular and Cell Biology, Howard Hughes Medical Institute, University of California, Berkeley, California 94720-3200; email:


The trans-Golgi network (TGN) is an important cargo sorting station within the cell where newly synthesized proteins are packaged into distinct transport carriers that are targeted to various destinations. To maintain the fidelity of protein transport, elaborate protein sorting machinery is employed to mediate sorting of specific cargo proteins into distinct transport carriers. Protein sorting requires assembly of the cytosolic sorting machinery onto the TGN membrane and capture of cargo proteins. We review the cytosolic and transmembrane sorting machinery that function at the TGN and describe molecular interactions and regulatory mechanisms that enable accurate protein sorting. In addition, we highlight the importance of TGN sorting in physiology and disease.


Arfs; cargo adaptors; cargo receptors; phospholipids; vesicle coat proteins

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