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Updated: Jul 2, 2026
11:05
Analysis of Endocytic Uptake and Retrograde Transport to the Trans-Golgi Network Using Functionalized Nanobodies in Cultured Cells
Published on: February 21, 2019
Endosome protein sorting: motifs and machinery
1University of Cambridge, Cambridge Institute for Medical Research/Dept. of Clinical Biochemistry, Wellcome Trust/MRC Building, Addenbrookes Hospital, Hills Road, Cambridge, CB2 0XY United Kingdom. mnjs100@cam.ac.uk
Cellular and Molecular Life Sciences : CMLS
|August 30, 2008
Summary
Membrane protein localization in the endosomal pathway relies on sorting motifs interacting with conserved machinery. This review explores these motifs and the machinery governing protein trafficking to the plasma membrane, TGN, or lysosome.
Area of Science:
- Cell Biology
- Molecular Biology
- Protein Trafficking
Background:
- Steady-state localization of membrane proteins in the endocytic system involves complex sorting events.
- Proteins reaching endosomes from the plasma membrane or trans-Golgi network (TGN) are directed to specific destinations.
Purpose of the Study:
- To review the machinery and motifs governing endosomal protein sorting.
- To highlight the conserved nature of protein sorting machinery across species.
Main Methods:
- Review of existing literature on endosomal protein sorting.
- Analysis of conserved protein machinery and sorting motifs.
Main Results:
- Endosomal protein localization is dictated by interactions between protein sorting motifs and cellular machinery.
- Key destinations include the plasma membrane, TGN, and lysosome.
Conclusions:
- Conserved protein machinery recognizes sorting motifs to direct membrane proteins within the endosomal pathway.
- Understanding these interactions is crucial for comprehending cellular protein localization.
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