NCBI » Bookshelf » Molecular Biology of the Cell » Internal Organization of the Cell » Intracellular Compartments and Protein Sorting

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   The endoplasmic reticulum (ER)

In this tobacco cell, an ER resident protein, which has been coupled to a green fluorescent protein tag, reveals the complex cortical network of ER sheets and tubules within the cell. (Courtesy of Petra Boevink and Chris Hawes.)