Protein Sorting and Protein Modification Along the Secretory Pathway in BY-2 Cells
Many different compartments in the cell, which we call organelles, function as many respective specialized intracellular factories in the cell. Some organelles, such as chloroplast, mitochondria and peroxisomes, function relatively independently of other organelles. In contrast, the endoplasmic reticulum (ER), Golgi apparatus, endosome, prevacuolar compartments (PVC), secretory vesicles and vacuoles, consist of a highly sophisticated organelle network: these organelles are always communicating with each other and with the plasma membrane. The rough ER, the Golgi apparatus and the vacuoles can be easily distinguished morphologically from other organelles. However, others, such as the endosome and prevacuolar compartment cannot be easily distinguished morphologically from the smooth ER and secretory vesicles, at least in BY-2 cells, because these organelles may be defined only by their function.
KeywordsGolgi Apparatus Secretory Pathway Vacuolar Protein Golgi Stack Cell Plate Formation
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