Molecular chaperones
Cells exposed to high temperature increase production of heat shock proteins. What is their main function?
Answer A: explanation for every choice
A
Correct. Chaperones bind exposed hydrophobic regions of partly unfolded proteins, helping them refold and preventing clumping.
B
Peptide bond hydrolysis is done by proteases and the proteasome.
C
Glycosylation is done by glycosyltransferases in the ER and Golgi.
D
Heat shock proteins are the products of these genes, not the enzymes that transcribe them.
TakeawayChaperones assist folding. They don't encode a protein's final shape.
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Reviewed 2026-11-05 by a medical student. Spot an error? Report it with question ID bb106.