Despite clear evidence that Hsp12 -- a so-called heat shock or stress protein -- helps cells survive life-threatening conditions, how it works was an open question until now. The surprising answer is revealed by German researchers who have discovered the function of Hsp12, a protective mechanism unlike any previously observed. Unfolded within the cell's aqueous cytosol, Hsp12 folds into helical structures to stabilize the cell membrane.
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