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A trapper keeper for TRAPP, its structures and functions

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Abstract

During biosynthesis many membrane and secreted proteins are transported from the endoplasmic reticulum, through the Golgi and on to the plasma membrane in small transport vesicles. These transport vesicles have to undergo budding, movement, tethering, docking, and fusion at each organelle of the biosynthetic pathway. The transport protein particle (TRAPP) complex was initially identified as the tethering factor for endoplasmic reticulum (ER)—derived COPII vesicles, but the functions of TRAPP may extend to other areas of biology. Three forms of TRAPP complexes have been discovered to date, and recent advances in research have provided new insights on the structures and functions of TRAPP. Here we provide a comprehensive review of the recent findings in TRAPP biology.

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Acknowledgments

We thank Dr. Michael G. Roth for critical comments of this manuscript. This work is supported by the General Research Fund of the Hong Kong Research Grant Council to S. Y. (grant number 479410).

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  1. School of Biomedical Sciences and Epithelial Cell Biology Research Center, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, People’s Republic of China

    Sidney Yu

  2. Key Laboratory of Agricultural Environmental Microbiology of MOA, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China

    Yongheng Liang

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Correspondence to Sidney Yu.

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Yu, S., Liang, Y. A trapper keeper for TRAPP, its structures and functions. Cell. Mol. Life Sci. 69, 3933–3944 (2012). https://doi.org/10.1007/s00018-012-1024-3

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