Cited by 253Cellular transport and secretionIon Transport and Channel RegulationLipid Membrane Structure and Behavior

Sorting of an apical plasma membrane glycoprotein occurs before it reaches the cell surface in cultured epithelial cells.

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Matlin, K S, Simons, K·1984·The Journal of cell biology

Abstract

In Madin-Darby canine kidney (MDCK) cells (a polarized epithelial cell line) infected with influenza virus, the hemagglutinin behaves as an apical plasma membrane glycoprotein. To determine biochemically the domain on the plasma membrane, apical or basolateral, where newly synthesized hemagglutinin first appears, cells were cultured on Millipore filters to make both cell surface domains independently accessible. Hemagglutinin in virus-infected cells was pulse-labeled, chased, and detected on the plasma membrane with a sensitive trypsin assay. Under all conditions tested, newly made hemagglutinin appeared simultaneously on both domains, with the bulk found in the apical membrane. When trypsin was continuously present on the basolateral surface during the chase, little hemagglutinin was cleaved relative to the amount transported apically. In addition, specific antibodies against the hemagglutinin placed basolaterally had no effect on transport to the apical domain. These observations suggested that most newly synthesized hemagglutinin does not transiently appear on the basolateral surface but rather is delivered directly to the apical surface in amounts that account for its final polarized distribution.

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Authors
Matlin, K. S., & Simons, K.
Venue
The Journal of cell biology
Published
1984-12-01
Volume
99
Issue
6
Pages
2131-2139
ISSN
  • 0021-9525 (ISSN-L)
  • 1540-8140
OpenAlex
W2124287787
Cited by
253
References
33
Citations by year
2026: 1 · 2025: 1 · 2024: 1 · 2022: 1 · 2021: 1 · 2020: 1 · 2019: 1 · 2018: 1 · 2012: 2
FWCI
9.24
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • The Journal of Cell Biology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • 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 › Ion Transport and Channel Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Lipid Membrane Structure and Behavior
Keywords
hemagglutinin, apical membrane, membrane protein sorting, epithelial polarity, basolateral membrane, influenza, MDCK cells, trypsin accessibility, protein trafficking
MeSH terms
Animals, Cell Division, Cell Line, Cell Membrane, Dogs, Epithelial Cells, Epithelium, Glycoproteins, Hemagglutinins, Kidney, Kinetics, Membrane Proteins, Microscopy, Electron, Protein Processing, Post-Translational

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