Characterisation of a fusion event from the endocytic pathway

  • John Davey
  • Graham Warren
Conference paper
Part of the Veröffentlichungen aus der Geomedizinischen Forschungsstelle der Heidelberger Akademie der Wissenschaften book series (HD AKAD, volume 1987/88 / 1987/4)


Endocytosis is the process by which cells internalise extracellular ligands by enclosing them within inward foldings of the plasma membrane that seal to form intracellular vesicles (Silverstein et al., 1977). Many of the ligands are selectively concentrated for uptake by first binding to specific receptors at the plasma membrane, a process known as receptor-mediated endocytosis. The receptor-bound ligands become clustered in specialised regions of the cell surface known as coated pits (Bretscher and Pearse, 1984). These pits pinch off into the cell and the resulting vesicle uncoats and fuses with a larger prelysosomal vesicle called the endosome (Helenius et al., 1983). The acidic environment within this compartment causes the ligand to dissociate from its receptor and whilst the receptor is recycled back to the plasma membrane the ligand is delivered to lysosomes where it is degraded.


Sialic Acid Fusion Reaction Fusion Event Endocytic Pathway Sialic Acid Residue 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1987

Authors and Affiliations

  • John Davey
    • 1
  • Graham Warren
    • 1
  1. 1.Department of BiochemistryThe UniversityDundeeScotland, UK

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