Kelly Tyrrell’s favorite structure is:


Evolution of the cytoskeleton JCB

Source: The Journal of Cell Biology


Prior to the advent of x-ray crystallography, one of the defining characteristics of prokaryotes was “lacks a cytoskeleton.” However, when the crystal structure of bacterial MreB was found, scientists discovered that MreB and eukaryotic actin “look” nearly identical. It turned that notion completely upside down, rewriting textbooks, and scientists have been studying these homologs – and the evolutionary origins of these proteins – ever since. —Kelly Tyrrell

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