Textbook drawings of the cell’s largest organelle might need to be updated based on new images. Super-resolution shots of the endoplasmic reticulum reveal tightly packed tubes where previous pictures showed plain flat sheets. /…/ The finding helps explain how the endoplasmic reticulum, or ER, reshapes itself in response to changing conditions, says study coauthor Jennifer Lippincott-Schwartz, a cell biologist at the Howard Hughes Medical Institute’s Janelia Research Campus in Ashburn, Va.
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