Textbook images have typically depicted the ER like a pile of pancakes. But a team based at Harvard and the University of Connecticut Health Center developed a new technique to stain this microscopic structure. Then they used a new scanning electron microscopy method to show how each level of membrane is connected by a helical ramp—like the ramps in a multi-level parking lot. Another feature is that when the cells need to produce a lot of proteins this structure can add on additional levels of membrane—effectively increasing the manufacturing capacity of this organ. directorsblog.nih.gov/2013/08/01/proteins-park-free-in-this-helix/
Posted on: Sat, 03 Aug 2013 01:38:31 +0000
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