Protein Trafficiking

  • Created by: Macaw
  • Created on: 25-01-13 21:18
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  • Protein Trafficking AS Topic 2
    • Protein transport within eukaryotic cells begins with amino acids being made into protein (on ribosomes)
      • Newly-made protein is stored in rER (rough-endoplasmic reticulum) cavity
        • Protein is packaged at the ENDS of rER.
          • Membrane closes, forming a vesicle
            • Vesicle pinches off the rER
              • Floats towards Golgi Apparatus
                • Protein is modified in the Golgi Apparatus (group of fluid-filled, flattened sacs)
                  • The proteins leave the cell by exocytosis
                    • The proteins leave the cell (exocytosis), when vesicles fuse with the cell surface membrane which contain extracellular enzymes


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