Medical Definition of chaperone
: any of a class of proteins (such as heat shock proteins and chaperonins) that facilitate the proper folding of proteins by binding to and stabilizing unfolded or partially folded proteins <As the proteins are produced, molecules called chaperones fold them into the three-dimensional form they are supposed to take.—Andres M. Lozano et al., Scientific American, July 2005>—called also
Variants of chaperone
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