Cited by 186Cellular transport and secretionRNA Research and SplicingFungal and yeast genetics research

Genome-wide RNAi screening identifies human proteins with a regulatory function in the early secretory pathway

Simpson, Jeremy C., Joggerst, Brigitte, Laketa, Vibor, Verissimo, Fatima, Cetin, Cihan, Erfle, Holger, Bexiga, Mariana G., Singan, Vasanth R. +9 more·2012·Nature Cell Biology

Abstract

The secretory pathway in mammalian cells has evolved to facilitate the transfer of cargo molecules to internal and cell surface membranes. Use of automated microscopy-based genome-wide RNA interference screens in cultured human cells allowed us to identify 554 proteins influencing secretion. Cloning, fluorescent-tagging and subcellular localization analysis of 179 of these proteins revealed that more than two-thirds localize to either the cytoplasm or membranes of the secretory and endocytic pathways. The depletion of 143 of them resulted in perturbations in the organization of the COPII and/or COPI vesicular coat complexes of the early secretory pathway, or the morphology of the Golgi complex. Network analyses revealed a so far unappreciated link between early secretory pathway function, small GTP-binding protein regulation, actin cytoskeleton organization and EGF-receptor-mediated signalling. This work provides an important resource for an integrative understanding of global cellular organization and regulation of the secretory pathway in mammalian cells.

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Crossref · 10.1038/ncb2510

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Authors
Simpson, J. C., Joggerst, B., Laketa, V., Verissimo, F., Cetin, C., Erfle, H., Bexiga, M. G., Singan, V. R., Hériché, J.-K., Neumann, B., Mateos, A., Blake, J., Bechtel, S., Benes, V., Wiemann, S., Ellenberg, J., & Pepperkok, R.
Affiliations
  • University College Dublin (IE)
  • European Molecular Biology Laboratory (DE)
  • Heidelberg University (DE)
  • German Cancer Research Center (DE)
Corresponding author
  • Simpson, Jeremy C.
  • Pepperkok, Rainer
Venue
Nature Cell Biology
Published
2012-06-03
Volume
14
Issue
7
Pages
764-774
ISSN
  • 1465-7392 (ISSN-L)
  • 1476-4679
OpenAlex
W2080751376
Cited by
186
References
50
Citations by year
2026: 5 · 2025: 5 · 2024: 8 · 2023: 9 · 2022: 9 · 2021: 9 · 2020: 11 · 2019: 15 · 2018: 9 · 2017: 13 · 2016: 24 · 2015: 21 · 2014: 21 · 2013: 22 · 2012: 5
FWCI
10.45
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Cell Biology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
Keywords
secretory pathway, early secretory pathway, protein secretion, Golgi apparatus, endocytic pathway, small GTPases, actin cytoskeleton, EGF receptor signalling, protein regulatory networks, membrane trafficking, human protein
MeSH terms
Cloning, Molecular, Endocytosis, Epidermal Growth Factor, Gene Expression Regulation, Golgi Apparatus, HeLa Cells, Humans, Actin Cytoskeleton, Microscopy, Fluorescence, Platelet-Derived Growth Factor, Recombinant Fusion Proteins, Time Factors, Transfection, Signal Transduction, Monomeric GTP-Binding Proteins, Protein Transport, Secretory Vesicles, Transport Vesicles, RNA Interference, Gene Regulatory Networks

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